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Analysis

  • max time kernel
    89s
  • max time network
    142s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20221111-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
  • submitted
    07/02/2023, 15:22

General

  • Target

    AWB NO. 8148557141.exe

  • Size

    792KB

  • MD5

    a169ae631ac877e4e89d595b6ba03600

  • SHA1

    4589dd4afc4a6c9423ddba7442137e5beb502fb0

  • SHA256

    c1add17549206e0ea3e1025ec81ff8d7e5ae994381600ec84d33eeab50ea7232

  • SHA512

    f2a639c226a6e092c664921fcb99dba63ca564e024f0be3b364951c55a842a5767a95c79f7afd1d61400c01c396eb346346e110f18e744613008def4d0e0bcf3

  • SSDEEP

    12288:Nrt0wdeWKBp5gYcjzioNo5IhMbmfEJhJm6I6awHRr/CB06KuLpgbDDlG:NrGV7p55Ki7WhMKfCm6xawxO5dgZ

Malware Config

Extracted

Family

agenttesla

C2

https://api.telegram.org/bot6191932863:AAEw6WZfMHSbIiilSKsmAnJOgaZwvnoMVh8/

Signatures

  • AgentTesla

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

  • 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.

  • Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
  • 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 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\AWB NO. 8148557141.exe
    "C:\Users\Admin\AppData\Local\Temp\AWB NO. 8148557141.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4756
    • C:\Users\Admin\AppData\Local\Temp\AWB NO. 8148557141.exe
      "C:\Users\Admin\AppData\Local\Temp\AWB NO. 8148557141.exe"
      2⤵
      • Accesses Microsoft Outlook profiles
      • Suspicious use of AdjustPrivilegeToken
      • outlook_office_path
      • outlook_win_path
      PID:4264

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/4264-138-0x0000000000400000-0x0000000000430000-memory.dmp

    Filesize

    192KB

  • memory/4264-139-0x00000000051D0000-0x0000000005236000-memory.dmp

    Filesize

    408KB

  • memory/4264-140-0x0000000006CB0000-0x0000000006D00000-memory.dmp

    Filesize

    320KB

  • memory/4264-141-0x0000000006F00000-0x00000000070C2000-memory.dmp

    Filesize

    1.8MB

  • memory/4756-132-0x00000000007F0000-0x00000000008BC000-memory.dmp

    Filesize

    816KB

  • memory/4756-133-0x0000000005860000-0x0000000005E04000-memory.dmp

    Filesize

    5.6MB

  • memory/4756-134-0x00000000052B0000-0x0000000005342000-memory.dmp

    Filesize

    584KB

  • memory/4756-135-0x0000000005260000-0x000000000526A000-memory.dmp

    Filesize

    40KB

  • memory/4756-136-0x0000000008F00000-0x0000000008F9C000-memory.dmp

    Filesize

    624KB