Resubmissions

02-06-2024 18:25

240602-w2w41sbf78 10

Analysis

  • max time kernel
    46s
  • max time network
    17s
  • platform
    windows7_x64
  • resource
    win7-20240508-en
  • resource tags

    arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system
  • submitted
    02-06-2024 18:25

General

  • Target

    SOA APR 24.exe

  • Size

    901KB

  • MD5

    2122017dc567afeff4862f31daa5856f

  • SHA1

    e0adc8da7d4cf39a288611410fe7cd9df30f0b9f

  • SHA256

    c8d3cf2a81ee47e614a072bf29f42183678b5e2208819b1a296e8a3fa2d42ddf

  • SHA512

    08bca8c9797c4cb0f6397cc297ad2130bbb0bef2447f673f3c42c3b3a608a6037712556cbd1d67488e33a1d323c88d26f1041cc60983c16333a20eef99f232bf

  • SSDEEP

    12288:O8SwLGBCsXwhdZpVUd6+rqJMWwFzl/Y8gwJNqz6lsq3kR:O8SwiBr4ZpVUdOMWelwbONqz64

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\SOA APR 24.exe
    "C:\Users\Admin\AppData\Local\Temp\SOA APR 24.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1424
    • 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\SOA APR 24.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2360
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\bsIjKRBCFThhKg.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:3052
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\bsIjKRBCFThhKg" /XML "C:\Users\Admin\AppData\Local\Temp\tmp40A8.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:2700
    • C:\Users\Admin\AppData\Local\Temp\SOA APR 24.exe
      "C:\Users\Admin\AppData\Local\Temp\SOA APR 24.exe"
      2⤵
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      PID:2524

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmp40A8.tmp

    Filesize

    1KB

    MD5

    717d75508adec0d47bfa9e91a37e5750

    SHA1

    8ef68a02df6fd1e32c733ef8c20291a3b35cafdd

    SHA256

    399a69d1a602953a6281f1b8cb1e5a3107311a99d5f285ac2f3a68f0f6cc9116

    SHA512

    5203fb908ad86f0b7f04e2e882b7bd18e625f43745b084b64e2b2789b929f6ffdbfdbf1a92709673c990d7e0d52d8356c05c6636ca9b8dbdd3f4f04473294f45

  • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\d93f411851d7c929.customDestinations-ms

    Filesize

    7KB

    MD5

    ccb18e47b2ab8e2cf78b7afe428259e8

    SHA1

    6c06ad79ac9d7b113f35f118af56c58b42163a84

    SHA256

    3e25f1f76e83f8fbd22cb28afcfb7abf4f4e9255e379c89c98c706aff123c243

    SHA512

    c3d5ea86007c9db86497f615525aa9e21638057f2b33c7d05f3731ca83d7590a929c733f6dc53e5b6762ea4cbe9dc46fff7367c4cb1d0f502d57d71925b3652c

  • memory/1424-31-0x0000000074DF0000-0x00000000754DE000-memory.dmp

    Filesize

    6.9MB

  • memory/1424-1-0x0000000001250000-0x0000000001334000-memory.dmp

    Filesize

    912KB

  • memory/1424-2-0x00000000004C0000-0x00000000004DA000-memory.dmp

    Filesize

    104KB

  • memory/1424-3-0x0000000074DF0000-0x00000000754DE000-memory.dmp

    Filesize

    6.9MB

  • memory/1424-4-0x00000000004A0000-0x00000000004B0000-memory.dmp

    Filesize

    64KB

  • memory/1424-5-0x0000000005160000-0x00000000051E4000-memory.dmp

    Filesize

    528KB

  • memory/1424-0-0x0000000074DFE000-0x0000000074DFF000-memory.dmp

    Filesize

    4KB

  • memory/2524-19-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/2524-30-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/2524-28-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/2524-26-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/2524-24-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/2524-22-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/2524-20-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/2524-27-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB