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PUA_OGIMANT.GA

February 21, 2018
 Analysis by: Mio Fidel Villena
 ALIASES:

Riskware/Apdome (FORTINET), SoftwareBundler:Win32/Ogimant (MICROSOFT), Gen:Variant.Razy.216579 (BITDEFENDER)

 PLATFORM:

Windows

 OVERALL RISK RATING:
 DAMAGE POTENTIAL:
 DISTRIBUTION POTENTIAL:
 REPORTED INFECTION:
 INFORMATION EXPOSURE:

  • Threat Type: Potentially Unwanted Application

  • Destructiveness: No

  • Encrypted:

  • In the wild: Yes

  OVERVIEW

Infection Channel:

Dropped by other malware


This Potentially Unwanted Application arrives on a system as a file dropped by other malware or as a file downloaded unknowingly by users when visiting malicious sites. It may be manually installed by a user.

  TECHNICAL DETAILS

File Size:

744,136 bytes

File Type:

EXE

Memory Resident:

No

Initial Samples Received Date:

01 Nov 2017

Payload:

Connects to URLs/IPs

Arrival Details

This Potentially Unwanted Application arrives on a system as a file dropped by other malware or as a file downloaded unknowingly by users when visiting malicious sites.

It may be manually installed by a user.

Other Details

This Potentially Unwanted Application connects to the following possibly malicious URL:

  • http://{BLOCKED}.{BLOCKED}/d/55ec8d1c4fceae77cacf44befb681dc0/177
  • http://{BLOCKED}.{BLOCKED}/yap32i.wsf
  • http://{BLOCKED}kmailru.{BLOCKED}l.ru/mailruhomesearch.exe
  • http://{BLOCKED}.{BLOCKED}/k/55ec8d1c4fceae77cacf44befb681dc0/241
  • http://{BLOCKED}.{BLOCKED}/yap32.wsf
  • http://{BLOCKED}.{BLOCKED}/k/55ec8d1c4fceae77cacf44befb681dc0/243

It does the following:

  • This Potentially Unwanted Application saves the files it downloads using the following names:
    • %User Temp%\{8 random numbers}.exe

    It then executes the downloaded files. As a result, routines of the downloaded files are exhibited on the affected system.

(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

Minimum Scan Engine:

9.850

SSAPI PATTERN File:

1.921.00

SSAPI PATTERN Date:

22 Feb 2018

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

[ Learn More ]
There may be some files that are hidden. Please make sure you check the Search Hidden Files and Folders checkbox in the "More advanced options" option to include all hidden files and folders in the search result.  
  • %User Temp%\{8 random numbers}.exe

Step 4

Scan your computer with your Trend Micro product to delete files detected as PUA_OGIMANT.GA. 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 the following Trend Micro Support pages for more information:


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