Analysis

  • max time kernel
    121s
  • max time network
    122s
  • platform
    windows7_x64
  • resource
    win7-20240419-en
  • resource tags

    arch:x64arch:x86image:win7-20240419-enlocale:en-usos:windows7-x64system
  • submitted
    10-06-2024 01:22

General

  • Target

    ff02b3a5936360107b2140fbf9568906942f0233c653138b9ed7aaf380ea8219.exe

  • Size

    801KB

  • MD5

    93448df651462b991e637c29f96f743b

  • SHA1

    572103d0c0e08913880de207c99a67e69edefc89

  • SHA256

    ff02b3a5936360107b2140fbf9568906942f0233c653138b9ed7aaf380ea8219

  • SHA512

    8505edba75c7c8ad23fa0185aaab4a1421b2789c092639b2b025878fc79b96af967a91d694f45f011a27f031c1501d9c6ac2746caee298ac8bc93927299a52af

  • SSDEEP

    12288:wS7ChtcY/YLLEmmmmmmmmEP5tTL6XypgjwRdQE26SWo9itoX+4KJIs1/EVXagtYu:wS7C3c6ytfgjwuaoOXJncagtY+VT

Malware Config

Extracted

Family

agenttesla

C2

https://api.telegram.org/bot7484083549:AAEE5Oqjk8-Dg8pZ-dQakW-Y-WLiZEYp4ng/

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.

  • Looks up external IP address via web service 1 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 9 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 25 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\ff02b3a5936360107b2140fbf9568906942f0233c653138b9ed7aaf380ea8219.exe
    "C:\Users\Admin\AppData\Local\Temp\ff02b3a5936360107b2140fbf9568906942f0233c653138b9ed7aaf380ea8219.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1860
    • 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\ff02b3a5936360107b2140fbf9568906942f0233c653138b9ed7aaf380ea8219.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2668
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\ucSBYWgzLcqdK.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2588
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\ucSBYWgzLcqdK" /XML "C:\Users\Admin\AppData\Local\Temp\tmp3AEE.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:2872
    • C:\Users\Admin\AppData\Local\Temp\ff02b3a5936360107b2140fbf9568906942f0233c653138b9ed7aaf380ea8219.exe
      "C:\Users\Admin\AppData\Local\Temp\ff02b3a5936360107b2140fbf9568906942f0233c653138b9ed7aaf380ea8219.exe"
      2⤵
        PID:2464
      • C:\Users\Admin\AppData\Local\Temp\ff02b3a5936360107b2140fbf9568906942f0233c653138b9ed7aaf380ea8219.exe
        "C:\Users\Admin\AppData\Local\Temp\ff02b3a5936360107b2140fbf9568906942f0233c653138b9ed7aaf380ea8219.exe"
        2⤵
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of SetWindowsHookEx
        PID:2472

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Temp\tmp3AEE.tmp

      Filesize

      1KB

      MD5

      c54c9f925785075695a7078d2f5880ce

      SHA1

      1761ac7f0ab098073e8aac9d91ca3bfd4ba1e3bf

      SHA256

      78d1f5dbb0a458e312a7ea4ae0a8b16a040322acb55474af4c8f956d9ecb8128

      SHA512

      39a29a2bc1e20500b76140980a05fc50ff3238fc49ead7bc8d54d28560b7a89876783b3f854e2862ae30c02849ee987b36713e1b349a46051dcac5a4e294aa0d

    • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\DHETS720YY71UBYCXSTW.temp

      Filesize

      7KB

      MD5

      de3f6b34b29c3bb49c976eeecdef12f7

      SHA1

      6e0705f1f817a92de7edf0ce5a58e1b7e476065e

      SHA256

      e45f1df9400838a0fc8ad11ceb6c91bc2681eba3e80c67cefaa4ee30c33caed8

      SHA512

      072377a52af2472e7fa3da16e80790e7a8468657da5f218df8197f2eff89401c4063a7fead304bd11df0241d357f157605246ead0c282cade3348e98ec315856

    • memory/1860-31-0x0000000074B80000-0x000000007526E000-memory.dmp

      Filesize

      6.9MB

    • memory/1860-1-0x00000000001F0000-0x00000000002BE000-memory.dmp

      Filesize

      824KB

    • memory/1860-5-0x0000000000700000-0x0000000000710000-memory.dmp

      Filesize

      64KB

    • memory/1860-4-0x00000000006B0000-0x00000000006BE000-memory.dmp

      Filesize

      56KB

    • memory/1860-6-0x0000000004F20000-0x0000000004FA6000-memory.dmp

      Filesize

      536KB

    • memory/1860-2-0x0000000074B80000-0x000000007526E000-memory.dmp

      Filesize

      6.9MB

    • memory/1860-0-0x0000000074B8E000-0x0000000074B8F000-memory.dmp

      Filesize

      4KB

    • memory/1860-3-0x0000000000680000-0x0000000000696000-memory.dmp

      Filesize

      88KB

    • memory/2472-30-0x0000000000400000-0x0000000000444000-memory.dmp

      Filesize

      272KB

    • memory/2472-28-0x0000000000400000-0x0000000000444000-memory.dmp

      Filesize

      272KB

    • memory/2472-27-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

      Filesize

      4KB

    • memory/2472-25-0x0000000000400000-0x0000000000444000-memory.dmp

      Filesize

      272KB

    • memory/2472-23-0x0000000000400000-0x0000000000444000-memory.dmp

      Filesize

      272KB

    • memory/2472-21-0x0000000000400000-0x0000000000444000-memory.dmp

      Filesize

      272KB

    • memory/2472-19-0x0000000000400000-0x0000000000444000-memory.dmp

      Filesize

      272KB

    • memory/2472-29-0x0000000000400000-0x0000000000444000-memory.dmp

      Filesize

      272KB