Analysis

  • max time kernel
    119s
  • max time network
    120s
  • platform
    windows7_x64
  • resource
    win7-20231129-en
  • resource tags

    arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
  • submitted
    12-06-2024 01:50

General

  • Target

    985f3a90e2586583a9913bc78484f4b3fb824bb08d9ccac14f229df08928477a.exe

  • Size

    2.3MB

  • MD5

    285fee9261cc0f1ff6b69c10b6a2cbc9

  • SHA1

    058613d120360a7cc86901a316fb9704c0596c16

  • SHA256

    985f3a90e2586583a9913bc78484f4b3fb824bb08d9ccac14f229df08928477a

  • SHA512

    710ea284e0ac25491a5129c1c968c418673a0d191bfe25baae8d77cd0701fda357adbf68adf06e6b0d08221dbfe5b66d9a5ffb2244297b907fa7d799f63a2278

  • SSDEEP

    3072:k9LlfupJWPlE3ziE1wKtV5iEn+hFWd/7Udrfm2ukEg0Xvgb4TlvAYVQWfLoU8mow:kJ

Malware Config

Extracted

Family

agenttesla

Credentials

Signatures

  • AgentTesla

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

  • Detect packed .NET executables. Mostly AgentTeslaV4. 5 IoCs
  • Detects binaries (Windows and macOS) referencing many web browsers. Observed in information stealers. 5 IoCs
  • Detects executables packed with or use KoiVM 1 IoCs
  • Detects executables referencing Windows vault credential objects. Observed in infostealers 5 IoCs
  • Detects executables referencing many confidential data stores found in browsers, mail clients, cryptocurreny wallets, etc. Observed in information stealers 5 IoCs
  • Detects executables referencing many email and collaboration clients. Observed in information stealers 5 IoCs
  • Detects executables referencing many file transfer clients. Observed in information stealers 5 IoCs
  • 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.

  • Suspicious use of SetThreadContext 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 15 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\985f3a90e2586583a9913bc78484f4b3fb824bb08d9ccac14f229df08928477a.exe
    "C:\Users\Admin\AppData\Local\Temp\985f3a90e2586583a9913bc78484f4b3fb824bb08d9ccac14f229df08928477a.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:1908
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1900
    • C:\Windows\system32\WerFault.exe
      C:\Windows\system32\WerFault.exe -u -p 1908 -s 652
      2⤵
        PID:3020

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/1900-5-0x0000000000400000-0x0000000000442000-memory.dmp

      Filesize

      264KB

    • memory/1900-15-0x0000000000400000-0x0000000000442000-memory.dmp

      Filesize

      264KB

    • memory/1900-8-0x0000000000400000-0x0000000000442000-memory.dmp

      Filesize

      264KB

    • memory/1900-10-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

      Filesize

      4KB

    • memory/1900-6-0x0000000000400000-0x0000000000442000-memory.dmp

      Filesize

      264KB

    • memory/1900-11-0x0000000000400000-0x0000000000442000-memory.dmp

      Filesize

      264KB

    • memory/1900-4-0x0000000000400000-0x0000000000442000-memory.dmp

      Filesize

      264KB

    • memory/1900-13-0x0000000000400000-0x0000000000442000-memory.dmp

      Filesize

      264KB

    • memory/1908-1-0x0000000000120000-0x0000000000376000-memory.dmp

      Filesize

      2.3MB

    • memory/1908-0-0x000007FEF5043000-0x000007FEF5044000-memory.dmp

      Filesize

      4KB

    • memory/1908-3-0x000000001B300000-0x000000001B396000-memory.dmp

      Filesize

      600KB

    • memory/1908-2-0x000007FEF5040000-0x000007FEF5A2C000-memory.dmp

      Filesize

      9.9MB

    • memory/1908-16-0x000007FEF5043000-0x000007FEF5044000-memory.dmp

      Filesize

      4KB

    • memory/1908-17-0x000007FEF5040000-0x000007FEF5A2C000-memory.dmp

      Filesize

      9.9MB