Analysis

  • max time kernel
    147s
  • max time network
    149s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240508-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
  • submitted
    15-06-2024 05:39

General

  • Target

    ad07926d2c8d7fedd597679324dffb5f_JaffaCakes118.exe

  • Size

    697KB

  • MD5

    ad07926d2c8d7fedd597679324dffb5f

  • SHA1

    4fbce051729777098f6f801ec7cb263e70abab5e

  • SHA256

    b0810703cc36dba94108ad74d91031ac6c7a07ad87b702b8725bb9b94f263b5c

  • SHA512

    855b866aacb8f92353c5589d030a2ee156aa0cc3b682899b86602e023bf13c105420bf5b319f180df06baa782125545dfd3c602ead92b80d754bc82727dc10a4

  • SSDEEP

    12288:v+v2zv1gPFpOQWLkeqMBIfF7+GdKwOenwDkYrI6rf/lT0Q1YpOOqkttybw:Z2dQ1YABU+O6ewDkYc6m3ttys

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    mail.nusatek.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    nusatek187753d

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
  • 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 SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 14 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\ad07926d2c8d7fedd597679324dffb5f_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\ad07926d2c8d7fedd597679324dffb5f_JaffaCakes118.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2916
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\ieuxuL" /XML "C:\Users\Admin\AppData\Local\Temp\tmp9824.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:4728
    • C:\Users\Admin\AppData\Local\Temp\ad07926d2c8d7fedd597679324dffb5f_JaffaCakes118.exe
      "C:\Users\Admin\AppData\Local\Temp\ad07926d2c8d7fedd597679324dffb5f_JaffaCakes118.exe"
      2⤵
        PID:2936
      • C:\Users\Admin\AppData\Local\Temp\ad07926d2c8d7fedd597679324dffb5f_JaffaCakes118.exe
        "C:\Users\Admin\AppData\Local\Temp\ad07926d2c8d7fedd597679324dffb5f_JaffaCakes118.exe"
        2⤵
        • Accesses Microsoft Outlook profiles
        • Adds Run key to start application
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of SetWindowsHookEx
        • outlook_office_path
        • outlook_win_path
        PID:4972

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Temp\tmp9824.tmp

      Filesize

      1KB

      MD5

      1d982bb1ea14ea3727a52603dec3afa5

      SHA1

      65f7a897057e06bc116b652c54421168c8a9dc79

      SHA256

      ec3ede7fbe8cd92b34cf825ddf537eca1d9ff618c5a67f45013e22cf7a29e8f3

      SHA512

      4a5c87ef3bcd8a5f3458e7ed061df8dec2c45fbdfe1d71662979c717215ba2994d0827f8cd90e77295fcd7fe29950751d30b30405ceb9adc11ff47351738a149

    • memory/2916-10-0x0000000074810000-0x0000000074FC0000-memory.dmp

      Filesize

      7.7MB

    • memory/2916-3-0x0000000005270000-0x0000000005814000-memory.dmp

      Filesize

      5.6MB

    • memory/2916-12-0x0000000005950000-0x0000000005956000-memory.dmp

      Filesize

      24KB

    • memory/2916-4-0x0000000004D60000-0x0000000004DF2000-memory.dmp

      Filesize

      584KB

    • memory/2916-5-0x0000000004C90000-0x0000000004C9A000-memory.dmp

      Filesize

      40KB

    • memory/2916-6-0x0000000004EF0000-0x0000000004F46000-memory.dmp

      Filesize

      344KB

    • memory/2916-7-0x0000000074810000-0x0000000074FC0000-memory.dmp

      Filesize

      7.7MB

    • memory/2916-8-0x0000000004D40000-0x0000000004D58000-memory.dmp

      Filesize

      96KB

    • memory/2916-13-0x0000000005CE0000-0x0000000005D48000-memory.dmp

      Filesize

      416KB

    • memory/2916-0-0x000000007481E000-0x000000007481F000-memory.dmp

      Filesize

      4KB

    • memory/2916-11-0x0000000005C50000-0x0000000005CD8000-memory.dmp

      Filesize

      544KB

    • memory/2916-2-0x0000000004BB0000-0x0000000004C4C000-memory.dmp

      Filesize

      624KB

    • memory/2916-9-0x000000007481E000-0x000000007481F000-memory.dmp

      Filesize

      4KB

    • memory/2916-1-0x0000000000190000-0x0000000000244000-memory.dmp

      Filesize

      720KB

    • memory/2916-21-0x0000000074810000-0x0000000074FC0000-memory.dmp

      Filesize

      7.7MB

    • memory/4972-19-0x0000000000400000-0x0000000000466000-memory.dmp

      Filesize

      408KB

    • memory/4972-22-0x0000000074810000-0x0000000074FC0000-memory.dmp

      Filesize

      7.7MB

    • memory/4972-23-0x0000000074810000-0x0000000074FC0000-memory.dmp

      Filesize

      7.7MB

    • memory/4972-24-0x0000000005160000-0x0000000005178000-memory.dmp

      Filesize

      96KB

    • memory/4972-25-0x0000000005D10000-0x0000000005D76000-memory.dmp

      Filesize

      408KB

    • memory/4972-27-0x00000000063C0000-0x0000000006410000-memory.dmp

      Filesize

      320KB

    • memory/4972-31-0x0000000074810000-0x0000000074FC0000-memory.dmp

      Filesize

      7.7MB