Analysis

  • max time kernel
    134s
  • max time network
    149s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240426-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
  • submitted
    21/05/2024, 03:30

General

  • Target

    tmp.exe

  • Size

    714KB

  • MD5

    09cf1d5f7315e247594b908db4314789

  • SHA1

    da28da4400078e612c19959002999b4beb5e1180

  • SHA256

    eeef34eb0f890de8fe7f7a86a471acccdbee8e9d1668cdb0e022285a9910dfe8

  • SHA512

    e590f0fbe9990d20bf6ec891ea30a582dc8cf58a6f97e9a4432049ab704977b042c80fdb0d239da7efa3b41ba201ac282b29998b4bcaf5e8fc6ed275d5dd14da

  • SSDEEP

    12288:8WET/mr9KMBL1qNP+JUtMIeMYQyP/MmuxPLKKKOaK/ce:8WtbBLo2JUeIRDycTbq

Malware Config

Extracted

Family

agenttesla

C2

https://api.telegram.org/bot6744817663:AAFJyzTv9CObDiCRjkgjtiOr-fMDQfjUcLk/

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.

  • 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
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\tmp.exe
    "C:\Users\Admin\AppData\Local\Temp\tmp.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:840
    • C:\Users\Admin\AppData\Local\Temp\tmp.exe
      "C:\Users\Admin\AppData\Local\Temp\tmp.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      PID:4560

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\tmp.exe.log

          Filesize

          1KB

          MD5

          8ec831f3e3a3f77e4a7b9cd32b48384c

          SHA1

          d83f09fd87c5bd86e045873c231c14836e76a05c

          SHA256

          7667e538030e3f8ce2886e47a01af24cb0ea70528b1e821c5d8832c5076cb982

          SHA512

          26bffa2406b66368bd412bf25869a792631455645992cdcade2dbc13a2e56fb546414a6a9223b94c96c38d89187add6678d4779a88b38b0c9e36be8527b213c3

        • memory/840-8-0x0000000005450000-0x0000000005460000-memory.dmp

          Filesize

          64KB

        • memory/840-1-0x0000000000F50000-0x000000000100A000-memory.dmp

          Filesize

          744KB

        • memory/840-3-0x0000000005A20000-0x0000000005AB2000-memory.dmp

          Filesize

          584KB

        • memory/840-4-0x0000000005A00000-0x0000000005A0A000-memory.dmp

          Filesize

          40KB

        • memory/840-5-0x00000000747A0000-0x0000000074F50000-memory.dmp

          Filesize

          7.7MB

        • memory/840-6-0x0000000005F40000-0x0000000005F62000-memory.dmp

          Filesize

          136KB

        • memory/840-7-0x0000000005D20000-0x0000000005D2C000-memory.dmp

          Filesize

          48KB

        • memory/840-0-0x00000000747AE000-0x00000000747AF000-memory.dmp

          Filesize

          4KB

        • memory/840-2-0x0000000005FD0000-0x0000000006574000-memory.dmp

          Filesize

          5.6MB

        • memory/840-9-0x0000000007010000-0x0000000007092000-memory.dmp

          Filesize

          520KB

        • memory/840-10-0x000000000BA20000-0x000000000BABC000-memory.dmp

          Filesize

          624KB

        • memory/840-15-0x00000000747A0000-0x0000000074F50000-memory.dmp

          Filesize

          7.7MB

        • memory/4560-14-0x00000000747A0000-0x0000000074F50000-memory.dmp

          Filesize

          7.7MB

        • memory/4560-11-0x0000000000400000-0x0000000000442000-memory.dmp

          Filesize

          264KB

        • memory/4560-17-0x0000000005240000-0x00000000052A6000-memory.dmp

          Filesize

          408KB

        • memory/4560-16-0x00000000747A0000-0x0000000074F50000-memory.dmp

          Filesize

          7.7MB

        • memory/4560-18-0x0000000006860000-0x00000000068B0000-memory.dmp

          Filesize

          320KB

        • memory/4560-19-0x00000000747A0000-0x0000000074F50000-memory.dmp

          Filesize

          7.7MB