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Analysis

  • max time kernel
    30s
  • max time network
    20s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240426-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
  • submitted
    29/05/2024, 05:31

General

  • Target

    ME1241562024.exe

  • Size

    770KB

  • MD5

    9b677b4d8e87552558cb7b250c4dd3ca

  • SHA1

    705dfbf6f6d34b10f9265d8334439de636b1e8c7

  • SHA256

    970134c0517367f08aac89e19cf63ac667fe75db4b86616209ee858737a1cd79

  • SHA512

    f90c313de9ec11b785e8ac6d3950cd04a3e3174b1dd1abfa8133bc6079545d0e78ab67e49908b80e44e02053ad7b28e9d18f2dfba38d7468859b5735e1ddb051

  • SSDEEP

    24576:/auvE6ITmd3x50xGRayTwng3Tgx44Nlj:xtIm0GZT0g3TgXj

Malware Config

Extracted

Credentials

  • Protocol:
    smtp
  • Host:
    mail.officeemailbackup.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    d1IXFo$=lK[r

Extracted

Family

agenttesla

Credentials

Signatures

  • AgentTesla

    Agent Tesla is a remote access tool (RAT) written in visual basic.

  • Reads WinSCP keys stored on the system 2 TTPs

    Tries to access WinSCP stored sessions.

  • Reads data files stored by FTP clients 2 TTPs

    Tries to access configuration files associated with programs like FileZilla.

  • Reads user/profile data of local email clients 2 TTPs

    Email clients store some user data on disk where infostealers will often target it.

  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Looks up external IP address via web service 2 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Suspicious use of SetThreadContext 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\ME1241562024.exe
    "C:\Users\Admin\AppData\Local\Temp\ME1241562024.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:3396
    • C:\Users\Admin\AppData\Local\Temp\ME1241562024.exe
      "C:\Users\Admin\AppData\Local\Temp\ME1241562024.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      PID:1848

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\ME1241562024.exe.log

    Filesize

    1KB

    MD5

    8ec831f3e3a3f77e4a7b9cd32b48384c

    SHA1

    d83f09fd87c5bd86e045873c231c14836e76a05c

    SHA256

    7667e538030e3f8ce2886e47a01af24cb0ea70528b1e821c5d8832c5076cb982

    SHA512

    26bffa2406b66368bd412bf25869a792631455645992cdcade2dbc13a2e56fb546414a6a9223b94c96c38d89187add6678d4779a88b38b0c9e36be8527b213c3

  • memory/1848-10-0x0000000000400000-0x0000000000440000-memory.dmp

    Filesize

    256KB

  • memory/1848-17-0x0000000006D40000-0x0000000006D90000-memory.dmp

    Filesize

    320KB

  • memory/1848-16-0x0000000005850000-0x00000000058B6000-memory.dmp

    Filesize

    408KB

  • memory/1848-15-0x00000000744A0000-0x0000000074C50000-memory.dmp

    Filesize

    7.7MB

  • memory/1848-13-0x00000000744A0000-0x0000000074C50000-memory.dmp

    Filesize

    7.7MB

  • memory/3396-4-0x0000000005230000-0x000000000523A000-memory.dmp

    Filesize

    40KB

  • memory/3396-7-0x0000000005260000-0x0000000005270000-memory.dmp

    Filesize

    64KB

  • memory/3396-8-0x0000000008070000-0x00000000080F2000-memory.dmp

    Filesize

    520KB

  • memory/3396-9-0x00000000059D0000-0x0000000005A6C000-memory.dmp

    Filesize

    624KB

  • memory/3396-6-0x0000000005240000-0x000000000525A000-memory.dmp

    Filesize

    104KB

  • memory/3396-5-0x00000000744A0000-0x0000000074C50000-memory.dmp

    Filesize

    7.7MB

  • memory/3396-0-0x00000000744AE000-0x00000000744AF000-memory.dmp

    Filesize

    4KB

  • memory/3396-14-0x00000000744A0000-0x0000000074C50000-memory.dmp

    Filesize

    7.7MB

  • memory/3396-3-0x0000000007D50000-0x0000000007DE2000-memory.dmp

    Filesize

    584KB

  • memory/3396-2-0x0000000008260000-0x0000000008804000-memory.dmp

    Filesize

    5.6MB

  • memory/3396-1-0x0000000000D40000-0x0000000000E06000-memory.dmp

    Filesize

    792KB