Analysis

  • max time kernel
    151s
  • max time network
    145s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231127-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231127-enlocale:en-usos:windows10-2004-x64system
  • submitted
    05-12-2023 03:45

General

  • Target

    77e7f5ee129d7a0eb6a063c6700083f6.exe

  • Size

    823KB

  • MD5

    77e7f5ee129d7a0eb6a063c6700083f6

  • SHA1

    3809d6d83545814b6ca32ee97de22a5d9ce43114

  • SHA256

    18e7407574a68f77e1fae3d3c818d864b7a61b044e16805f684968335197cc7d

  • SHA512

    5933fba201b39e8e3768b2eae316e9ab2bce27446d96b521f044a7960f7402ee2fd44c5d1f5be5ff0e8390978e836c030b3b341039e2023aace9d7f39693611e

  • SSDEEP

    12288:PWcXtW8G34/uK45+po2PUabkUh88z0IvoFMY1EUcCzetvc4en1ccxfD0whVS3UeJ:634/up+pJKY3o7NHiFcrn9xfnV+bJ

Malware Config

Extracted

Family

agenttesla

C2

https://api.telegram.org/bot6695508500:AAHkexS5oB1E5lJkAEKZx2DzV7hRPW1U52k/

Signatures

  • AgentTesla

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

  • 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 3 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Suspicious use of SetThreadContext 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 11 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\77e7f5ee129d7a0eb6a063c6700083f6.exe
    "C:\Users\Admin\AppData\Local\Temp\77e7f5ee129d7a0eb6a063c6700083f6.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2872
    • C:\Users\Admin\AppData\Local\Temp\77e7f5ee129d7a0eb6a063c6700083f6.exe
      "C:\Users\Admin\AppData\Local\Temp\77e7f5ee129d7a0eb6a063c6700083f6.exe"
      2⤵
        PID:2924
      • C:\Users\Admin\AppData\Local\Temp\77e7f5ee129d7a0eb6a063c6700083f6.exe
        "C:\Users\Admin\AppData\Local\Temp\77e7f5ee129d7a0eb6a063c6700083f6.exe"
        2⤵
        • Adds Run key to start application
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of SetWindowsHookEx
        PID:4420

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/2872-10-0x0000000006410000-0x000000000648E000-memory.dmp

      Filesize

      504KB

    • memory/2872-16-0x0000000074460000-0x0000000074C10000-memory.dmp

      Filesize

      7.7MB

    • memory/2872-2-0x0000000005470000-0x0000000005A14000-memory.dmp

      Filesize

      5.6MB

    • memory/2872-3-0x0000000004E10000-0x0000000004EA2000-memory.dmp

      Filesize

      584KB

    • memory/2872-4-0x0000000002870000-0x0000000002880000-memory.dmp

      Filesize

      64KB

    • memory/2872-5-0x0000000004DD0000-0x0000000004DDA000-memory.dmp

      Filesize

      40KB

    • memory/2872-6-0x0000000005F90000-0x0000000005FA8000-memory.dmp

      Filesize

      96KB

    • memory/2872-0-0x0000000074460000-0x0000000074C10000-memory.dmp

      Filesize

      7.7MB

    • memory/2872-8-0x0000000005FD0000-0x0000000005FD8000-memory.dmp

      Filesize

      32KB

    • memory/2872-1-0x00000000002F0000-0x00000000003C4000-memory.dmp

      Filesize

      848KB

    • memory/2872-7-0x0000000074460000-0x0000000074C10000-memory.dmp

      Filesize

      7.7MB

    • memory/2872-11-0x00000000060F0000-0x000000000618C000-memory.dmp

      Filesize

      624KB

    • memory/2872-9-0x0000000005FE0000-0x0000000005FEA000-memory.dmp

      Filesize

      40KB

    • memory/4420-19-0x0000000006E40000-0x0000000006E90000-memory.dmp

      Filesize

      320KB

    • memory/4420-15-0x0000000005990000-0x00000000059A0000-memory.dmp

      Filesize

      64KB

    • memory/4420-14-0x0000000074460000-0x0000000074C10000-memory.dmp

      Filesize

      7.7MB

    • memory/4420-17-0x0000000005860000-0x00000000058C6000-memory.dmp

      Filesize

      408KB

    • memory/4420-12-0x0000000000400000-0x0000000000444000-memory.dmp

      Filesize

      272KB

    • memory/4420-20-0x0000000074460000-0x0000000074C10000-memory.dmp

      Filesize

      7.7MB

    • memory/4420-21-0x0000000005990000-0x00000000059A0000-memory.dmp

      Filesize

      64KB