Analysis

  • max time kernel
    121s
  • max time network
    122s
  • platform
    windows7_x64
  • resource
    win7-20240508-en
  • resource tags

    arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system
  • submitted
    22-05-2024 07:31

General

  • Target

    PO00211.exe

  • Size

    670KB

  • MD5

    2b12a266317f002c205011fa1958072c

  • SHA1

    07e6859611698f37aa9c4011f76907aafe524218

  • SHA256

    dff297acb567f990471dca2871adee15229e572c35fef5fd20eb9a1428946c04

  • SHA512

    444f0444202f3c4c67cdf3deeb479233041edd4d7a16c0240b729173b5781322278d21abb9e55eb09668795e1121a77ea9ffd11735823a08b109f064969f67b8

  • SSDEEP

    12288:J0FJzi8LkpEaAxx1Qy0+9+WTehgXkWP3DdFsOFHplgCIQlHzWH4jdmeO1W+TLTuU:KT2jE3LS7+99fXxP3DdFnFJ2CIQBgcdO

Malware Config

Extracted

Family

agenttesla

Credentials

Signatures

  • AgentTesla

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

  • Command and Scripting Interpreter: PowerShell 1 TTPs 2 IoCs

    Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

  • 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.

  • 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).

  • 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 6 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 21 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\PO00211.exe
    "C:\Users\Admin\AppData\Local\Temp\PO00211.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1224
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\PO00211.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1312
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\eeOuEr.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:3060
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\eeOuEr" /XML "C:\Users\Admin\AppData\Local\Temp\tmp5C72.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:2644
    • C:\Users\Admin\AppData\Local\Temp\PO00211.exe
      "C:\Users\Admin\AppData\Local\Temp\PO00211.exe"
      2⤵
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      PID:2784

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmp5C72.tmp
    Filesize

    1KB

    MD5

    0cf7d82cff3913757423435288cbac91

    SHA1

    46da68500f92c958a0b3c488931879d405f58314

    SHA256

    665d98e20fcf5d4c71ad65df50a2530a8a8278d1e94e875b4653703abd7aacf8

    SHA512

    f14868ba130e4808b1e841e97c634dbd56ec7f21fcf440b784c193ee1ea71e51786784feacd655c4b99693c1b914229e1d4bc8cfb84bd996e120cef01a10d0e1

  • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\597YTLGU08YLUNQNWQSC.temp
    Filesize

    7KB

    MD5

    bc4d72cb9e81222fcd775ebe61283516

    SHA1

    5c696afc6609cd64dfc692a237970a3a8eb02ab4

    SHA256

    836908d5e6d368f00963dce437d80affa58f751b282114965138396f7b4a5345

    SHA512

    66fff733d1bf52c46c7c4b521576b5b631242f4c7b9d88b5fa7a4414fc0c0e151708db489ae307036eaab7fe0ed32e2f20ce2236d35c34229c1062f1f1b50eb8

  • memory/1224-31-0x0000000074820000-0x0000000074F0E000-memory.dmp
    Filesize

    6.9MB

  • memory/1224-1-0x00000000002C0000-0x000000000036A000-memory.dmp
    Filesize

    680KB

  • memory/1224-2-0x0000000074820000-0x0000000074F0E000-memory.dmp
    Filesize

    6.9MB

  • memory/1224-3-0x00000000007C0000-0x00000000007DA000-memory.dmp
    Filesize

    104KB

  • memory/1224-4-0x0000000000450000-0x0000000000460000-memory.dmp
    Filesize

    64KB

  • memory/1224-5-0x00000000052B0000-0x0000000005334000-memory.dmp
    Filesize

    528KB

  • memory/1224-0-0x000000007482E000-0x000000007482F000-memory.dmp
    Filesize

    4KB

  • memory/2784-27-0x0000000000400000-0x0000000000442000-memory.dmp
    Filesize

    264KB

  • memory/2784-30-0x0000000000400000-0x0000000000442000-memory.dmp
    Filesize

    264KB

  • memory/2784-26-0x000000007EFDE000-0x000000007EFDF000-memory.dmp
    Filesize

    4KB

  • memory/2784-24-0x0000000000400000-0x0000000000442000-memory.dmp
    Filesize

    264KB

  • memory/2784-22-0x0000000000400000-0x0000000000442000-memory.dmp
    Filesize

    264KB

  • memory/2784-20-0x0000000000400000-0x0000000000442000-memory.dmp
    Filesize

    264KB

  • memory/2784-18-0x0000000000400000-0x0000000000442000-memory.dmp
    Filesize

    264KB

  • memory/2784-28-0x0000000000400000-0x0000000000442000-memory.dmp
    Filesize

    264KB