Analysis

  • max time kernel
    148s
  • max time network
    121s
  • platform
    windows10_x64
  • resource
    win10v20210408
  • submitted
    12/10/2021, 16:28

General

  • Target
    21ITQXL080104122T7.exe
  • Size 583KB
  • Sample211012-tynblacgd6
  • SHA256 66ee4b53abb08b5133bc88f5fa911e091420bd47744384ec9d0d56a408bebea7
  • MD5 SHA1 SHA512

Malware Config

Extracted

Family
  • agenttesla

C2
  • https://api.telegram.org/bot1335107831:AAGZPoo67JukV78LJI16BeQqy3whx-zI59g/sendDocument

Signatures

  • AgentTesla

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

  • AgentTesla Payload 3 IoCs
  • Drops file in Drivers directory 1 IoCs
  • Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\21ITQXL080104122T7.exe
    "C:\Users\Admin\AppData\Local\Temp\21ITQXL080104122T7.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:664
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
      2⤵
      • Drops file in Drivers directory
      • Accesses Microsoft Outlook profiles
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • outlook_office_path
      • outlook_win_path
      PID:2256

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

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        Downloads

        memory/664-114-0x0000000000850000-0x0000000000851000-memory.dmp

        memory/664-116-0x00000000055B0000-0x00000000055B1000-memory.dmp

        memory/664-117-0x0000000005150000-0x0000000005151000-memory.dmp

        memory/664-118-0x0000000005110000-0x0000000005111000-memory.dmp

        memory/664-119-0x00000000050B0000-0x00000000055AE000-memory.dmp

        memory/664-120-0x0000000007580000-0x0000000007585000-memory.dmp

        memory/664-121-0x0000000006C50000-0x0000000006C51000-memory.dmp

        memory/664-122-0x0000000006DF0000-0x0000000006E6C000-memory.dmp

        memory/2256-123-0x0000000000400000-0x000000000043C000-memory.dmp

        memory/2256-129-0x0000000005010000-0x000000000550E000-memory.dmp

        memory/2256-130-0x0000000005160000-0x0000000005161000-memory.dmp

        memory/2256-131-0x0000000005D70000-0x0000000005D71000-memory.dmp