Analysis

  • max time kernel
    65s
  • max time network
    34s
  • platform
    windows7_x64
  • resource
    win7-20230220-en
  • resource tags

    arch:x64arch:x86image:win7-20230220-enlocale:en-usos:windows7-x64system
  • submitted
    17-03-2023 07:42

General

  • Target

    Payment Swift USD18,000.exe

  • Size

    841KB

  • MD5

    cb4f52bfbd20524cd1e593e3d144b437

  • SHA1

    b0a969cc5823930321ee787ef1308352e40d2131

  • SHA256

    336c6e2174453e52f6c8f72ff0b886011c5ab0d497b357de19b393d7c22214e8

  • SHA512

    c3d3197c1be34dff339c5d836ba8eead12074cb71913734235437767e62f9eec3fec389360aa7db11e59fe702be9c69b261bc5705d307468c36a3831247099c7

  • SSDEEP

    12288:rzC++IpjkjXyuaqZM+3pUH4mrVs239gWwvhDWs3tdc9jyT4p00gAEy5aB+AEZzis:gwjkj+UMsUH4m+1vJWSdcgTqSPFMBxV

Malware Config

Extracted

Family

agenttesla

Credentials

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
  • 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 use of AdjustPrivilegeToken 3 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 Swift USD18,000.exe
    "C:\Users\Admin\AppData\Local\Temp\Payment Swift USD18,000.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1712
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\YJPxDLdaAvgR.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1920
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\YJPxDLdaAvgR" /XML "C:\Users\Admin\AppData\Local\Temp\tmpBB93.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:580
    • C:\Users\Admin\AppData\Local\Temp\Payment Swift USD18,000.exe
      "C:\Users\Admin\AppData\Local\Temp\Payment Swift USD18,000.exe"
      2⤵
      • Accesses Microsoft Outlook profiles
      • Suspicious use of AdjustPrivilegeToken
      • outlook_office_path
      • outlook_win_path
      PID:828

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmpBB93.tmp

    Filesize

    1KB

    MD5

    f58beeb185bdaa740159ea66d63f7b14

    SHA1

    ad21b7f078a48a4cb6bcf81e8a45821d8f851664

    SHA256

    c93877d6184dc8e1c4d64348075a676446eadbb05645a3d4175dbf8bad84a017

    SHA512

    9278cf24c29c5a95edf7861011f236a0bdac538849ea7c65821933445b5ddd256f4464f6aeb36cc123905e63fbae06a97df189749015823e28b4642bbfb11425

  • memory/828-76-0x0000000000400000-0x0000000000430000-memory.dmp

    Filesize

    192KB

  • memory/828-74-0x0000000000400000-0x0000000000430000-memory.dmp

    Filesize

    192KB

  • memory/828-69-0x0000000000400000-0x0000000000430000-memory.dmp

    Filesize

    192KB

  • memory/828-70-0x0000000000400000-0x0000000000430000-memory.dmp

    Filesize

    192KB

  • memory/828-79-0x00000000043D0000-0x0000000004410000-memory.dmp

    Filesize

    256KB

  • memory/828-78-0x0000000000400000-0x0000000000430000-memory.dmp

    Filesize

    192KB

  • memory/828-73-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/828-71-0x0000000000400000-0x0000000000430000-memory.dmp

    Filesize

    192KB

  • memory/828-72-0x0000000000400000-0x0000000000430000-memory.dmp

    Filesize

    192KB

  • memory/828-81-0x00000000043D0000-0x0000000004410000-memory.dmp

    Filesize

    256KB

  • memory/1712-57-0x0000000000600000-0x0000000000640000-memory.dmp

    Filesize

    256KB

  • memory/1712-68-0x0000000004A20000-0x0000000004A52000-memory.dmp

    Filesize

    200KB

  • memory/1712-67-0x0000000004940000-0x0000000004946000-memory.dmp

    Filesize

    24KB

  • memory/1712-56-0x0000000000370000-0x000000000038A000-memory.dmp

    Filesize

    104KB

  • memory/1712-54-0x0000000000C80000-0x0000000000D58000-memory.dmp

    Filesize

    864KB

  • memory/1712-55-0x0000000000600000-0x0000000000640000-memory.dmp

    Filesize

    256KB

  • memory/1712-59-0x0000000007DA0000-0x0000000007E4A000-memory.dmp

    Filesize

    680KB

  • memory/1712-58-0x00000000004C0000-0x00000000004CC000-memory.dmp

    Filesize

    48KB

  • memory/1920-80-0x0000000002620000-0x0000000002660000-memory.dmp

    Filesize

    256KB