Analysis

  • max time kernel
    147s
  • max time network
    181s
  • platform
    windows7_x64
  • resource
    win7-20221111-en
  • resource tags

    arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
  • submitted
    08-12-2022 16:06

General

  • Target

    PAYMENT ADVISE_0004.exe

  • Size

    841KB

  • MD5

    c57e9585bbe179e45833e8b896c73e29

  • SHA1

    1c0aa52a527f919f0e575e00dcb7023c553f9d5c

  • SHA256

    0a87339cba74896d097ec10a18315d66dc3f98121ba968ff571a29e241646b60

  • SHA512

    15b2b749010b6da998063d24aa75a38b0fdda79c523f99b2ff1cc074f64d6551b5854a09adf44df434e4ede55e7562535650e54445bb94096620e10360575263

  • SSDEEP

    12288:F/hXvkIY0GZa/4y1v8Vdv+UF9Co2dLi78dkLgxlkg586aWHffauQOQWM6x5BbWIb:8B03giZUFZ2dLg/gxlB5O8f4b

Malware Config

Extracted

Family

agenttesla

C2

https://discord.com/api/webhooks/1046885137620668476/tqKDZZWFXo6nvWfx10p4wfxf1QI6_dSmYl-LLQGbb4vhhmp9HT4sLvTVg0kj1SgRTQGZ

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
  • Adds Run key to start application 2 TTPs 1 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
  • Enumerates physical storage devices 1 TTPs

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

  • 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 4 IoCs
  • Suspicious behavior: RenamesItself 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 17 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\PAYMENT ADVISE_0004.exe
    "C:\Users\Admin\AppData\Local\Temp\PAYMENT ADVISE_0004.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:2028
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\dpVDkY.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:376
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\dpVDkY" /XML "C:\Users\Admin\AppData\Local\Temp\tmp9139.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:1496
    • C:\Users\Admin\AppData\Local\Temp\PAYMENT ADVISE_0004.exe
      "C:\Users\Admin\AppData\Local\Temp\PAYMENT ADVISE_0004.exe"
      2⤵
      • Accesses Microsoft Outlook profiles
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: RenamesItself
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      • outlook_office_path
      • outlook_win_path
      PID:1536

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmp9139.tmp

    Filesize

    1KB

    MD5

    cc6ffeaa1c9c64daaf0fa98d2bab2a7c

    SHA1

    3f8c32105f15009a6e74ff31fd27b49540184585

    SHA256

    b0ec77df1e74e6d8bbd372c70ef934e1ffb7a8dcb9acd67c3295a4932e9dc3d3

    SHA512

    bfaca78c621b8e440128539a55aae079229e60b2ffcb91f896f0b781358a45e31d6c48f403bd60649d4a5abfef1ca3321fc16e09d07f7f5f79cd8e0491fc03c8

  • memory/376-59-0x0000000000000000-mapping.dmp

  • memory/376-77-0x000000006F8E0000-0x000000006FE8B000-memory.dmp

    Filesize

    5.7MB

  • memory/376-63-0x000000006F8E0000-0x000000006FE8B000-memory.dmp

    Filesize

    5.7MB

  • memory/1496-60-0x0000000000000000-mapping.dmp

  • memory/1536-68-0x0000000000400000-0x0000000000438000-memory.dmp

    Filesize

    224KB

  • memory/1536-69-0x0000000000400000-0x0000000000438000-memory.dmp

    Filesize

    224KB

  • memory/1536-75-0x0000000000400000-0x0000000000438000-memory.dmp

    Filesize

    224KB

  • memory/1536-73-0x0000000000400000-0x0000000000438000-memory.dmp

    Filesize

    224KB

  • memory/1536-71-0x000000000043247E-mapping.dmp

  • memory/1536-65-0x0000000000400000-0x0000000000438000-memory.dmp

    Filesize

    224KB

  • memory/1536-66-0x0000000000400000-0x0000000000438000-memory.dmp

    Filesize

    224KB

  • memory/1536-70-0x0000000000400000-0x0000000000438000-memory.dmp

    Filesize

    224KB

  • memory/2028-64-0x0000000007B00000-0x0000000007B48000-memory.dmp

    Filesize

    288KB

  • memory/2028-54-0x0000000001360000-0x0000000001438000-memory.dmp

    Filesize

    864KB

  • memory/2028-58-0x0000000007850000-0x00000000078D2000-memory.dmp

    Filesize

    520KB

  • memory/2028-56-0x0000000000390000-0x00000000003A6000-memory.dmp

    Filesize

    88KB

  • memory/2028-57-0x0000000000550000-0x000000000055E000-memory.dmp

    Filesize

    56KB

  • memory/2028-55-0x0000000076651000-0x0000000076653000-memory.dmp

    Filesize

    8KB