RANSOM_EDA2OLAKEASE.A
Ransom.HiddenTear!g1(Norton)
Windows
Threat Type: Ransomware
Destructiveness: No
Encrypted: No
In the wild: Yes
OVERVIEW
Dropped by other malware, Downloaded from the Internet
This Ransomware arrives on a system as a file dropped by other malware or as a file downloaded unknowingly by users when visiting malicious sites.
It connects to certain websites to send and receive information.
It encrypts files with specific file extensions. It encrypts files found in specific folders. It drops files as ransom note.
TECHNICAL DETAILS
225,280 bytes
EXE
No
26 May 2017
Connects to URLs/IPs, Encrypts files, Displays graphics/image
Arrival Details
This Ransomware arrives on a system as a file dropped by other malware or as a file downloaded unknowingly by users when visiting malicious sites.
Other System Modifications
This Ransomware changes the desktop wallpaper by modifying the following registry entries:
HKEY_CURRENT_USER\Control Panel\Desktop
Wallpaper = %User Temp%\{GUID}.pdf
It sets the system's desktop wallpaper to the following image:
Other Details
This Ransomware connects to the following website to send and receive information:
- http://{BLOCKED}k.mx/
Ransomware Routine
This Ransomware encrypts files with the following extensions:
- .txt
- .asf
- .xls
- .docx
- .xlsx
- .mp3
- .waw
- .jpg
- .jpeg
- .txt
- .rtf
- .doc
- .rar
- .zip
- .psd
- .tif
- .wma
- .gif
- .bmp
- .ppt
- .pptx
- .docm
- .xlsm
- .pps
- .ppsx
- .ppd
- .eps
- .png
- .ace
- .djvu
- .tar
- .cdr
- .max
- .wmv
- .avi
- .wav
- .mp4
- .pdd
- .php
- .aac
- .ac3
- .amf
- .amr
- .dwg
- .dxf
- .accdb
- .mod
- .tax2013
- .tax2014
- .oga
- .ogg
- .pbf
- .ra
- .raw
- .saf
- .val
- .wave
- .wow
- .wpk
- .3g2
- .3gp
- .3gp2
- .3mm
- .amx
- .avs
- .bik
- .dir
- .divx
- .dvx
- .evo
- .flv
- .qtq
- .tch
- .rts
- .rum
- .rv
- .scn
- .srt
- .stx
- .svi
- .swf
- .trp
- .vdo
- .wm
- .wmd
- .wmmp
- .wmx
- .wvx
- .xvid
- .3d
- .3d4
- .3df8
- .pbs
- .adi
- .ais
- .amu
- .arr
- .bmc
- .bmf
- .cag
- .cam
- .dng
- .ink
- .jif
- .jiff
- .jpc
- .jpf
- .jpw
- .mag
- .mic
- .mip
- .msp
- .nav
- .ncd
- .odc
- .odi
- .opf
- .qif
- .xwd
- .abw
- .act
- .adt
- .aim
- .ans
- .asc
- .ase
- .bdp
- .bdr
- .bib
- .boc
- .crd
- .diz
- .dot
- .dotm
- .dotx
- .dvi
- .dxe
- .mlx
- .err
- .euc
- .faq
- .fdr
- .fds
- .gthr
- .idx
- .kwd
- .lp2
- .ltr
- .man
- .mbox
- .msg
- .nfo
- .now
- .odm
- .oft
- .pwi
- .rng
- .rtx
- .run
- .ssa
- .text
- .unx
- .wbk
- .wsh
- .7z
- .arc
- .ari
- .arj
- .car
- .cbr
- .cbz
- .gz
- .gzig
- .jgz
- .pak
- .pcv
- .puz
- .rev
- .sdn
- .sen
- .sfs
- .sfx
- .sh
- .shar
- .shr
- .sqx
- .tbz2
- .tg
- .tlz
- .vsi
- .wad
- .war
- .xpi
- .z02
- .z04
- .zap
- .zipx
- .zoo
- .ipa
- .isu
- .jar
- .js
- .udf
- .adr
- .ap
- .aro
- .asa
- .ascx
- .ashx
- .asmx
- .asp
- .indd
- .asr
- .qbb
- .bml
- .cer
- .cms
- .crt
- .dap
- .htm
- .moz
- .svr
- .url
- .wdgt
- .abk
- .bic
- .big
- .blp
- .bsp
- .cgf
- .chk
- .col
- .cty
- .dem
- .elf
- .ff
- .gam
- .grf
- .h3m
- .h4r
- .iwd
- .ldb
- .lgp
- .lvl
- .map
- .md3
- .mdl
- .nds
- .pbp
- .ppf
- .pwf
- .pxp
- .sad
- .sav
- .scm
- .scx
- .sdt
- .spr
- .sud
- .uax
- .umx
- .unr
- .uop
- .usa
- .usx
- .ut2
- .ut3
- .utc
- .utx
- .uvx
- .uxx
- .vmf
- .vtf
- .w3g
- .w3x
- .wtd
- .wtf
- .ccd
- .cd
- .cso
- .disk
- .dmg
- .dvd
- .fcd
- .flp
- .img
- .isz
- .mdf
- .mds
- .nrg
- .nri
- .vcd
- .vhd
- .snp
- .bkf
- .ade
- .adpb
- .dic
- .cch
- .ctt
- .dal
- .ddc
- .ddcx
- .dex
- .dif
- .dii
- .itdb
- .itl
- .kmz
- .lcd
- .lcf
- .mbx
- .mdn
- .odf
- .odp
- .ods
- .pab
- .pkb
- .pkh
- .pot
- .potx
- .pptm
- .psa
- .qdf
- .qel
- .rgn
- .rrt
- .rsw
- .rte
- .sdb
- .sdc
- .sds
- .sql
- .stt
- .tcx
- .thmx
- .txd
- .txf
- .upoi
- .vmt
- .wks
- .wmdb
- .xl
- .xlc
- .xlr
- .xlsb
- .xltx
- .ltm
- .xlwx
- .mcd
- .cap
- .cc
- .cod
- .cp
- .cpp
- .cs
- .csi
- .dcp
- .dcu
- .dev
- .dob
- .dox
- .dpk
- .dpl
- .dpr
- .dsk
- .dsp
- .eql
- .ex
- .f90
- .fla
- .for
- .fpp
- .jav
- .java
- .lbi
- .owl
- .pl
- .plc
- .pli
- .pm
- .res
- .rsrc
- .so
- .swd
- .tpu
- .tpx
- .tu
- .tur
- .vc
- .yab
- .aip
- .amxx
- .ape
- .api
- .mxp
- .oxt
- .qpx
- .qtr
- .xla
- .xlam
- .xll
- .xlv
- .xpt
- .cfg
- .cwf
- .dbb
- .slt
- .bp2
- .bp3
- .bpl
- .clr
- .dbx
- .jc
- .potm
- .ppsm
- .prc
- .prt
- .shw
- .std
- .ver
- .wpl
- .xlm
- .yps
- .1cd
- .bck
- .html
- .bak
- .odt
- .pst
- .log
- .mpg
- .mpeg
- .odb
- .wps
- .xlk
- .mdb
- .dxg
- .wpd
- .wb2
- .dbf
- .ai
- .3fr
- .arw
- .srf
- .sr2
- .bay
- .crw
- .cr2
- .dcr
- .kdc
- .erf
- .mef
- .mrw
- .nef
- .nrw
- .orf
- .raf
- .rwl
- .rw2
- .r3d
- .ptx
- .pef
- .srw
- .x3f
- .der
- .pem
- .pfx
- .p12
- .p7b
- .p7c
- .jfif
- .exif
It encrypts files found in the following folders:
- A:\
- B:\
- C:\
- D:\
- E:\
- F:\
- G:\
It appends the following extension to the file name of the encrypted files:
- .olakease
It drops the following file(s) as ransom note:
- %User Temp%\{GUID}.pdf <- used as wallpaper
(Note: %User Temp% is the user's temporary folder, where it usually is C:\Documents and Settings\{user name}\Local Settings\Temp on Windows 2000, Windows Server 2003, and Windows XP (32- and 64-bit); C:\Users\{user name}\AppData\Local\Temp on Windows Vista (32- and 64-bit), Windows 7 (32- and 64-bit), Windows 8 (32- and 64-bit), Windows 8.1 (32- and 64-bit), Windows Server 2008, and Windows Server 2012.)
SOLUTION
9.850
13.430.08
26 May 2017
13.431.00
27 May 2017
Step 1
Before doing any scans, Windows XP, Windows Vista, and Windows 7 users must disable System Restore to allow full scanning of their computers.
Step 2
Note that not all files, folders, and registry keys and entries are installed on your computer during this malware's/spyware's/grayware's execution. This may be due to incomplete installation or other operating system conditions. If you do not find the same files/folders/registry information, please proceed to the next step.
Step 3
Search and delete these files
- %User Temp%\{GUID}.pdf
Step 4
Scan your computer with your Trend Micro product to delete files detected as RANSOM_EDA2OLAKEASE.A. If the detected files have already been cleaned, deleted, or quarantined by your Trend Micro product, no further step is required. You may opt to simply delete the quarantined files. Please check this Knowledge Base page for more information.
Step 5
Reset your Desktop properties
Step 6
Restore encrypted files from backup.
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