Analysis

  • max time kernel
    135s
  • max time network
    74s
  • platform
    windows10_x64
  • resource
    win10v20210408
  • submitted
    08/07/2021, 02:25

General

  • Target
    Re Prepayment for our order.exe
  • Size 905KB
  • Sample210708-rsbxll7xbs
  • SHA256 c25675ee40dfce33bf46f115a21fa645701b19fd8a3045205469fc3667584360
  • MD5 SHA1 SHA512

Malware Config

Extracted

Family
  • agenttesla

C2
  • https://api.telegram.org/bot1710972151:AAGND-MDy4o4KIn3dfogM2q-_085HQD_g5U/sendDocument

Signatures

  • AgentTesla

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

  • AgentTesla Payload 3 IoCs
  • 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
  • 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\Re Prepayment for our order.exe
    "C:\Users\Admin\AppData\Local\Temp\Re Prepayment for our order.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:804
    • C:\Users\Admin\AppData\Local\Temp\Re Prepayment for our order.exe
      "C:\Users\Admin\AppData\Local\Temp\Re Prepayment for our order.exe"
      2⤵
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      PID:504

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        memory/504-125-0x0000000000400000-0x000000000043C000-memory.dmp

        memory/504-134-0x0000000006320000-0x0000000006321000-memory.dmp

        memory/504-133-0x0000000006280000-0x0000000006281000-memory.dmp

        memory/504-132-0x0000000005780000-0x0000000005C7E000-memory.dmp

        memory/804-119-0x0000000005240000-0x0000000005241000-memory.dmp

        memory/804-122-0x0000000005610000-0x000000000561F000-memory.dmp

        memory/804-123-0x0000000008AA0000-0x0000000008B1A000-memory.dmp

        memory/804-124-0x000000000B110000-0x000000000B15C000-memory.dmp

        memory/804-121-0x0000000005240000-0x00000000052DC000-memory.dmp

        memory/804-120-0x0000000005540000-0x0000000005541000-memory.dmp

        memory/804-114-0x0000000000940000-0x0000000000941000-memory.dmp

        memory/804-118-0x0000000005380000-0x0000000005381000-memory.dmp

        memory/804-117-0x0000000005880000-0x0000000005881000-memory.dmp

        memory/804-116-0x00000000052E0000-0x00000000052E1000-memory.dmp