Analysis

  • max time kernel
    127s
  • max time network
    126s
  • platform
    windows10_x64
  • resource
    win10-en-20211104
  • submitted
    01-12-2021 13:38

General

  • Target

    .winlogon.exe

  • Size

    775KB

  • MD5

    6e2d47ac54d18c964c90915a010dc6fb

  • SHA1

    fe3feb8c8a884f3bef05c4208db9569962dfed06

  • SHA256

    ef44665a6222b35530d4bb9614ecb283c87dc3f32e1a054778ff50735a4abfe0

  • SHA512

    ed690ba47d9460d6c5512fd827b45c638db13db2b87c063cddc54f249523c870df2438603acf033af73165db7107b9fcd319f550f345e1ab0e596c870a1ee7bc

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    smtp.soliagruop.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    #@9$#@9r1jDC2BLR

Signatures

  • AgentTesla

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

  • AgentTesla Payload 3 IoCs
  • Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 6 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 11 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\.winlogon.exe
    "C:\Users\Admin\AppData\Local\Temp\.winlogon.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4392
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
      2⤵
        PID:4584
      • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
        "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
        2⤵
        • Accesses Microsoft Outlook profiles
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • outlook_office_path
        • outlook_win_path
        PID:4288

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/4288-127-0x0000000000400000-0x000000000043C000-memory.dmp

      Filesize

      240KB

    • memory/4288-135-0x0000000005F20000-0x0000000005F21000-memory.dmp

      Filesize

      4KB

    • memory/4288-134-0x0000000005380000-0x0000000005381000-memory.dmp

      Filesize

      4KB

    • memory/4288-133-0x0000000005230000-0x000000000572E000-memory.dmp

      Filesize

      5.0MB

    • memory/4288-128-0x00000000004375EE-mapping.dmp

    • memory/4392-122-0x00000000055D0000-0x0000000005ACE000-memory.dmp

      Filesize

      5.0MB

    • memory/4392-125-0x0000000008EE0000-0x0000000008EE1000-memory.dmp

      Filesize

      4KB

    • memory/4392-126-0x0000000009110000-0x000000000919F000-memory.dmp

      Filesize

      572KB

    • memory/4392-124-0x0000000005A80000-0x0000000005A86000-memory.dmp

      Filesize

      24KB

    • memory/4392-123-0x0000000005610000-0x0000000005611000-memory.dmp

      Filesize

      4KB

    • memory/4392-118-0x0000000000D00000-0x0000000000D01000-memory.dmp

      Filesize

      4KB

    • memory/4392-121-0x0000000005670000-0x0000000005671000-memory.dmp

      Filesize

      4KB

    • memory/4392-120-0x0000000005AD0000-0x0000000005AD1000-memory.dmp

      Filesize

      4KB