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Analysis

  • max time kernel
    147s
  • max time network
    155s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240319-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240319-enlocale:en-usos:windows10-2004-x64system
  • submitted
    05/04/2024, 12:55

General

  • Target

    d4444398dcb1366ac99eb1074031d5db_JaffaCakes118.exe

  • Size

    535KB

  • MD5

    d4444398dcb1366ac99eb1074031d5db

  • SHA1

    abc8ce0f06f0d726b99e85818b29df163161725d

  • SHA256

    6127a09a636fac38861b7d547f31797ba41aaf9eccd825a580a27bdddd6c01d9

  • SHA512

    d53d544044407256768ced8b11e7e1eb795e133d206ab4d8b3d7eb95a673eff282f3e4360f0ac32132ff3743eff18854f4ce53288fa0a3df22c8634001075e4d

  • SSDEEP

    12288:ytniOAIi9Acns/kRq5bYmP5pQwvVJjQ0Jjck+ZLSpiooSOxpPZ4ZR6OpCVACHaGK:ytnXnd2REEMJDpQU7ttG07v

Malware Config

Extracted

Family

agenttesla

Credentials

Signatures

  • AgentTesla

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

  • AgentTesla payload 1 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • 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.

  • Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Creates scheduled task(s) 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious behavior: EnumeratesProcesses 5 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 11 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\d4444398dcb1366ac99eb1074031d5db_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\d4444398dcb1366ac99eb1074031d5db_JaffaCakes118.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:3864
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\UjfPBE" /XML "C:\Users\Admin\AppData\Local\Temp\tmpF8D7.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:3744
    • C:\Users\Admin\AppData\Local\Temp\d4444398dcb1366ac99eb1074031d5db_JaffaCakes118.exe
      "C:\Users\Admin\AppData\Local\Temp\d4444398dcb1366ac99eb1074031d5db_JaffaCakes118.exe"
      2⤵
      • Accesses Microsoft Outlook profiles
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • outlook_office_path
      • outlook_win_path
      PID:3140
  • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=3380 --field-trial-handle=2148,i,1752153415760610784,11376271161549019716,262144 --variations-seed-version /prefetch:8
    1⤵
      PID:1532

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\d4444398dcb1366ac99eb1074031d5db_JaffaCakes118.exe.log

      Filesize

      1KB

      MD5

      8ec831f3e3a3f77e4a7b9cd32b48384c

      SHA1

      d83f09fd87c5bd86e045873c231c14836e76a05c

      SHA256

      7667e538030e3f8ce2886e47a01af24cb0ea70528b1e821c5d8832c5076cb982

      SHA512

      26bffa2406b66368bd412bf25869a792631455645992cdcade2dbc13a2e56fb546414a6a9223b94c96c38d89187add6678d4779a88b38b0c9e36be8527b213c3

    • memory/3140-16-0x0000000000400000-0x000000000043C000-memory.dmp

      Filesize

      240KB

    • memory/3140-28-0x0000000005720000-0x0000000005730000-memory.dmp

      Filesize

      64KB

    • memory/3140-27-0x0000000005720000-0x0000000005730000-memory.dmp

      Filesize

      64KB

    • memory/3140-26-0x0000000005370000-0x00000000053C0000-memory.dmp

      Filesize

      320KB

    • memory/3140-25-0x0000000005720000-0x0000000005730000-memory.dmp

      Filesize

      64KB

    • memory/3140-24-0x0000000074440000-0x0000000074BF0000-memory.dmp

      Filesize

      7.7MB

    • memory/3140-23-0x0000000006380000-0x00000000063E6000-memory.dmp

      Filesize

      408KB

    • memory/3140-22-0x00000000056A0000-0x00000000056B8000-memory.dmp

      Filesize

      96KB

    • memory/3140-20-0x0000000005720000-0x0000000005730000-memory.dmp

      Filesize

      64KB

    • memory/3140-19-0x0000000074440000-0x0000000074BF0000-memory.dmp

      Filesize

      7.7MB

    • memory/3864-10-0x000000000C160000-0x000000000C1C0000-memory.dmp

      Filesize

      384KB

    • memory/3864-1-0x0000000000070000-0x00000000000FC000-memory.dmp

      Filesize

      560KB

    • memory/3864-9-0x000000000C010000-0x000000000C0AC000-memory.dmp

      Filesize

      624KB

    • memory/3864-8-0x0000000007160000-0x0000000007170000-memory.dmp

      Filesize

      64KB

    • memory/3864-21-0x0000000074440000-0x0000000074BF0000-memory.dmp

      Filesize

      7.7MB

    • memory/3864-7-0x0000000074440000-0x0000000074BF0000-memory.dmp

      Filesize

      7.7MB

    • memory/3864-6-0x0000000008340000-0x000000000834E000-memory.dmp

      Filesize

      56KB

    • memory/3864-5-0x0000000007120000-0x000000000712A000-memory.dmp

      Filesize

      40KB

    • memory/3864-4-0x0000000007160000-0x0000000007170000-memory.dmp

      Filesize

      64KB

    • memory/3864-3-0x0000000006F90000-0x0000000007022000-memory.dmp

      Filesize

      584KB

    • memory/3864-2-0x00000000074A0000-0x0000000007A44000-memory.dmp

      Filesize

      5.6MB

    • memory/3864-0-0x0000000074440000-0x0000000074BF0000-memory.dmp

      Filesize

      7.7MB