Analysis

  • max time kernel
    121s
  • max time network
    122s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    29-03-2024 01:52

General

  • Target

    42f1dfeb9073d32b3fe576e2f6cd470a31b9d229a6b3b942c47c0164ef49a1ee.exe

  • Size

    610KB

  • MD5

    b77fc7d018a5dd1ea5607c061a734d0d

  • SHA1

    121552c16ab6ccf844a67df9b7e19fda7ecb55a3

  • SHA256

    42f1dfeb9073d32b3fe576e2f6cd470a31b9d229a6b3b942c47c0164ef49a1ee

  • SHA512

    2e54055cf3cb68370eb356c23ee689aa46c55147da7eb89ea97f55fb6b367468b18923fbc1422b9d3460f0e5186a55098210f65873ba83e722d9ed7f18368bd6

  • SSDEEP

    12288:sbPngQuFdk6Wjn1ozqZN9N6jHszKpIFzdgLbjE/yo3L0r+4Byna5W:sbPluTk6Gn1n336OZMjESr1Yt

Malware Config

Extracted

Family

agenttesla

C2

https://api.telegram.org/bot6834342758:AAHnpbyPCzi-sEo22oVL6DdX9cuTElu_WyA/

Signatures

  • AgentTesla

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

  • 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 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 13 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\42f1dfeb9073d32b3fe576e2f6cd470a31b9d229a6b3b942c47c0164ef49a1ee.exe
    "C:\Users\Admin\AppData\Local\Temp\42f1dfeb9073d32b3fe576e2f6cd470a31b9d229a6b3b942c47c0164ef49a1ee.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2676
    • C:\Users\Admin\AppData\Local\Temp\42f1dfeb9073d32b3fe576e2f6cd470a31b9d229a6b3b942c47c0164ef49a1ee.exe
      "C:\Users\Admin\AppData\Local\Temp\42f1dfeb9073d32b3fe576e2f6cd470a31b9d229a6b3b942c47c0164ef49a1ee.exe"
      2⤵
        PID:3008
      • C:\Users\Admin\AppData\Local\Temp\42f1dfeb9073d32b3fe576e2f6cd470a31b9d229a6b3b942c47c0164ef49a1ee.exe
        "C:\Users\Admin\AppData\Local\Temp\42f1dfeb9073d32b3fe576e2f6cd470a31b9d229a6b3b942c47c0164ef49a1ee.exe"
        2⤵
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:2504

    Network

    MITRE ATT&CK Matrix ATT&CK v13

    Credential Access

    Unsecured Credentials

    4
    T1552

    Credentials In Files

    3
    T1552.001

    Credentials in Registry

    1
    T1552.002

    Collection

    Data from Local System

    4
    T1005

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/2504-22-0x0000000000D70000-0x0000000000DB0000-memory.dmp
      Filesize

      256KB

    • memory/2504-15-0x0000000000400000-0x0000000000442000-memory.dmp
      Filesize

      264KB

    • memory/2504-11-0x0000000000400000-0x0000000000442000-memory.dmp
      Filesize

      264KB

    • memory/2504-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp
      Filesize

      4KB

    • memory/2504-10-0x0000000000400000-0x0000000000442000-memory.dmp
      Filesize

      264KB

    • memory/2504-17-0x0000000000400000-0x0000000000442000-memory.dmp
      Filesize

      264KB

    • memory/2504-6-0x0000000000400000-0x0000000000442000-memory.dmp
      Filesize

      264KB

    • memory/2504-8-0x0000000000400000-0x0000000000442000-memory.dmp
      Filesize

      264KB

    • memory/2504-23-0x0000000074980000-0x000000007506E000-memory.dmp
      Filesize

      6.9MB

    • memory/2504-19-0x0000000000400000-0x0000000000442000-memory.dmp
      Filesize

      264KB

    • memory/2504-21-0x0000000074980000-0x000000007506E000-memory.dmp
      Filesize

      6.9MB

    • memory/2676-5-0x0000000005280000-0x0000000005304000-memory.dmp
      Filesize

      528KB

    • memory/2676-0-0x0000000000F40000-0x0000000000FDE000-memory.dmp
      Filesize

      632KB

    • memory/2676-3-0x00000000004E0000-0x00000000004F2000-memory.dmp
      Filesize

      72KB

    • memory/2676-20-0x0000000074980000-0x000000007506E000-memory.dmp
      Filesize

      6.9MB

    • memory/2676-2-0x0000000004C30000-0x0000000004C70000-memory.dmp
      Filesize

      256KB

    • memory/2676-1-0x0000000074980000-0x000000007506E000-memory.dmp
      Filesize

      6.9MB

    • memory/2676-4-0x0000000000510000-0x000000000051C000-memory.dmp
      Filesize

      48KB