Analysis

  • max time kernel
    137s
  • max time network
    100s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240508-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
  • submitted
    20-05-2024 17:38

General

  • Target

    PURCHASE ORDER.exe

  • Size

    736KB

  • MD5

    4040a8de40f0006800a533514935fc9e

  • SHA1

    22c34025f63c530e24771121fe66599d892884f7

  • SHA256

    fc97ff4201a640898a0378c099732689b17f53c54ec77b1016705e96cd8938a8

  • SHA512

    c7689555042a33f63acddc207003196afe4e798626d9ef04bfbe2fa8a51186b6a4ff540c5e4f875b5d1f3709e93e05a9bff5247372ccf9944584642f70bc9cc3

  • SSDEEP

    12288:9Wj52E/UdqaW3gKQRy9sfvKMRRjkW3bFNoeCgQY5xy2/+c9n0w1cauh:Ij5GMNCvKIRRbvv5xyNw1ca0

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 8 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\PURCHASE ORDER.exe
    "C:\Users\Admin\AppData\Local\Temp\PURCHASE ORDER.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3016
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\YtYFyHfQcbR" /XML "C:\Users\Admin\AppData\Local\Temp\tmpFF8E.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:3056
    • C:\Users\Admin\AppData\Local\Temp\PURCHASE ORDER.exe
      "{path}"
      2⤵
        PID:2296
      • C:\Users\Admin\AppData\Local\Temp\PURCHASE ORDER.exe
        "{path}"
        2⤵
        • Accesses Microsoft Outlook profiles
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of SetWindowsHookEx
        • outlook_office_path
        • outlook_win_path
        PID:3260

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

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

      Filesize

      1KB

      MD5

      8ec831f3e3a3f77e4a7b9cd32b48384c

      SHA1

      d83f09fd87c5bd86e045873c231c14836e76a05c

      SHA256

      7667e538030e3f8ce2886e47a01af24cb0ea70528b1e821c5d8832c5076cb982

      SHA512

      26bffa2406b66368bd412bf25869a792631455645992cdcade2dbc13a2e56fb546414a6a9223b94c96c38d89187add6678d4779a88b38b0c9e36be8527b213c3

    • C:\Users\Admin\AppData\Local\Temp\tmpFF8E.tmp

      Filesize

      1KB

      MD5

      4df6c456f43d2c963a7affd39a951111

      SHA1

      b24aab67d3ac9649f35f7e62d5987e80d40cfcfd

      SHA256

      4345e998eb89f622b6135ef913621236ea6895410955c9d5913b80e8b8696848

      SHA512

      f693dc14f064a0d016ab0c71604669a9a75a2a6fbf539edd192a062ccfa9733b9b0db42d6a8f4fd6c29b41c8ee881d21f887aa4bffefebf78f0decd6cbae2095

    • memory/3016-10-0x00000000076B0000-0x000000000773A000-memory.dmp

      Filesize

      552KB

    • memory/3016-18-0x0000000075030000-0x00000000757E0000-memory.dmp

      Filesize

      7.7MB

    • memory/3016-4-0x0000000004CB0000-0x0000000004CBA000-memory.dmp

      Filesize

      40KB

    • memory/3016-5-0x0000000075030000-0x00000000757E0000-memory.dmp

      Filesize

      7.7MB

    • memory/3016-6-0x00000000074F0000-0x000000000758C000-memory.dmp

      Filesize

      624KB

    • memory/3016-7-0x00000000074C0000-0x00000000074D2000-memory.dmp

      Filesize

      72KB

    • memory/3016-8-0x000000007503E000-0x000000007503F000-memory.dmp

      Filesize

      4KB

    • memory/3016-9-0x0000000075030000-0x00000000757E0000-memory.dmp

      Filesize

      7.7MB

    • memory/3016-0-0x000000007503E000-0x000000007503F000-memory.dmp

      Filesize

      4KB

    • memory/3016-11-0x0000000009DF0000-0x0000000009E6C000-memory.dmp

      Filesize

      496KB

    • memory/3016-2-0x00000000050D0000-0x0000000005674000-memory.dmp

      Filesize

      5.6MB

    • memory/3016-3-0x0000000004B20000-0x0000000004BB2000-memory.dmp

      Filesize

      584KB

    • memory/3016-1-0x0000000000040000-0x00000000000FE000-memory.dmp

      Filesize

      760KB

    • memory/3260-15-0x0000000000400000-0x000000000043C000-memory.dmp

      Filesize

      240KB

    • memory/3260-19-0x0000000075030000-0x00000000757E0000-memory.dmp

      Filesize

      7.7MB

    • memory/3260-20-0x0000000075030000-0x00000000757E0000-memory.dmp

      Filesize

      7.7MB

    • memory/3260-21-0x0000000005DA0000-0x0000000005DB8000-memory.dmp

      Filesize

      96KB

    • memory/3260-22-0x0000000006670000-0x00000000066D6000-memory.dmp

      Filesize

      408KB

    • memory/3260-23-0x0000000075030000-0x00000000757E0000-memory.dmp

      Filesize

      7.7MB

    • memory/3260-24-0x0000000006850000-0x00000000068A0000-memory.dmp

      Filesize

      320KB

    • memory/3260-25-0x0000000075030000-0x00000000757E0000-memory.dmp

      Filesize

      7.7MB