Analysis

  • max time kernel
    142s
  • max time network
    156s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    28-03-2024 21:51

General

  • Target

    11052389d3f9431d879eed5b171769b8_JaffaCakes118.exe

  • Size

    701KB

  • MD5

    11052389d3f9431d879eed5b171769b8

  • SHA1

    014dc09296ddca08b8dea0bbda9a19b162e17f87

  • SHA256

    f7f953c1fe2a993d404b4dbd1356f8cf4017c265ea9dafa60f8beeaff0c0588a

  • SHA512

    744a6864123250630a197dde5da54e662d49eb6a3d3ae8c7a853f8e6e369ba27fa76dddb3848440e35c55f375663b2279afbe5cb2b51fc4760407cb9b3aa5b49

  • SSDEEP

    12288:5GIZMqRSQdMkuvMNptn0U4lQAvUE+uPFwXuPLxQouMbXe2BaBjguiqJFTPe:5GIZrJvaC+QutQIDngmuiqi

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    mail.aldhiyafainteriors.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    dhiyafa@987

Signatures

  • AgentTesla

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

  • AgentTesla payload 1 IoCs
  • Drops file in Drivers directory 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
  • Adds Run key to start application 2 TTPs 1 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 2 IoCs
  • Suspicious use of WriteProcessMemory 11 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\11052389d3f9431d879eed5b171769b8_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\11052389d3f9431d879eed5b171769b8_JaffaCakes118.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2028
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\QarKnHvGxfLkZH" /XML "C:\Users\Admin\AppData\Local\Temp\tmp896F.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:3880
    • C:\Users\Admin\AppData\Local\Temp\11052389d3f9431d879eed5b171769b8_JaffaCakes118.exe
      "{path}"
      2⤵
      • Drops file in Drivers directory
      • Accesses Microsoft Outlook profiles
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • outlook_office_path
      • outlook_win_path
      PID:4436
  • 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=4076 --field-trial-handle=2900,i,14549994492153927475,12895178890800740987,262144 --variations-seed-version /prefetch:8
    1⤵
      PID:5076

    Network

    MITRE ATT&CK Matrix ATT&CK v13

    Execution

    Scheduled Task/Job

    1
    T1053

    Persistence

    Boot or Logon Autostart Execution

    1
    T1547

    Registry Run Keys / Startup Folder

    1
    T1547.001

    Scheduled Task/Job

    1
    T1053

    Privilege Escalation

    Boot or Logon Autostart Execution

    1
    T1547

    Registry Run Keys / Startup Folder

    1
    T1547.001

    Scheduled Task/Job

    1
    T1053

    Defense Evasion

    Modify Registry

    1
    T1112

    Credential Access

    Unsecured Credentials

    4
    T1552

    Credentials In Files

    3
    T1552.001

    Credentials in Registry

    1
    T1552.002

    Discovery

    Query Registry

    1
    T1012

    System Information Discovery

    2
    T1082

    Collection

    Data from Local System

    4
    T1005

    Email Collection

    1
    T1114

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Temp\tmp896F.tmp
      Filesize

      1KB

      MD5

      ef28726f55603842ff34e3d6c384d26f

      SHA1

      e66e7fbfce9dd54d1bc0f95f2691a589bffa732f

      SHA256

      2fa8a051d795200b46663b8f40c6b2351da2cbb41d48dd8ac7aa3e8748839a5f

      SHA512

      5909c516d5119ac02b40ec861eb9c727e5574685738528c44710d98938932e87ad21c665561e2c99d3390d73c3bb1bbd9c323c6066e7c593497151da1d61b720

    • memory/2028-12-0x000000000AEE0000-0x000000000AF1C000-memory.dmp
      Filesize

      240KB

    • memory/2028-20-0x0000000074F00000-0x00000000756B0000-memory.dmp
      Filesize

      7.7MB

    • memory/2028-11-0x0000000008780000-0x0000000008804000-memory.dmp
      Filesize

      528KB

    • memory/2028-4-0x0000000005620000-0x00000000056B2000-memory.dmp
      Filesize

      584KB

    • memory/2028-5-0x0000000005810000-0x0000000005820000-memory.dmp
      Filesize

      64KB

    • memory/2028-6-0x0000000005540000-0x000000000554A000-memory.dmp
      Filesize

      40KB

    • memory/2028-7-0x0000000005820000-0x0000000005876000-memory.dmp
      Filesize

      344KB

    • memory/2028-8-0x0000000005990000-0x00000000059A4000-memory.dmp
      Filesize

      80KB

    • memory/2028-9-0x0000000074F00000-0x00000000756B0000-memory.dmp
      Filesize

      7.7MB

    • memory/2028-1-0x0000000000AE0000-0x0000000000B96000-memory.dmp
      Filesize

      728KB

    • memory/2028-3-0x0000000005BD0000-0x0000000006174000-memory.dmp
      Filesize

      5.6MB

    • memory/2028-0-0x0000000074F00000-0x00000000756B0000-memory.dmp
      Filesize

      7.7MB

    • memory/2028-10-0x0000000005810000-0x0000000005820000-memory.dmp
      Filesize

      64KB

    • memory/2028-2-0x0000000005580000-0x000000000561C000-memory.dmp
      Filesize

      624KB

    • memory/4436-18-0x0000000074F00000-0x00000000756B0000-memory.dmp
      Filesize

      7.7MB

    • memory/4436-19-0x0000000005580000-0x0000000005590000-memory.dmp
      Filesize

      64KB

    • memory/4436-16-0x0000000000400000-0x000000000043C000-memory.dmp
      Filesize

      240KB

    • memory/4436-21-0x00000000057B0000-0x00000000057C8000-memory.dmp
      Filesize

      96KB

    • memory/4436-22-0x0000000006440000-0x00000000064A6000-memory.dmp
      Filesize

      408KB

    • memory/4436-24-0x0000000074F00000-0x00000000756B0000-memory.dmp
      Filesize

      7.7MB

    • memory/4436-25-0x0000000005580000-0x0000000005590000-memory.dmp
      Filesize

      64KB

    • memory/4436-27-0x0000000006630000-0x0000000006680000-memory.dmp
      Filesize

      320KB

    • memory/4436-28-0x0000000005580000-0x0000000005590000-memory.dmp
      Filesize

      64KB