Analysis

  • max time kernel
    123s
  • max time network
    127s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220901-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system
  • submitted
    14-02-2023 11:33

General

  • Target

    zamówienie Z2300056_pdf .exe

  • Size

    16KB

  • MD5

    ce64f7cef876c36aa4cbced9f2a479ad

  • SHA1

    23757c26d95a52e6ce8b391e4ba0f24787042d01

  • SHA256

    a9ad1c8db51f9e20280bab4947b9d9b47572e7c634cca0e2b121f3e7966a976d

  • SHA512

    48080167e57b97f776c2f0d4676e3800216a38fd9bef8646b38c8b0df81980706f193b7224a6a01acf8f4e72385b0cce4d1c2add8e4dbd39bbd7f72218717913

  • SSDEEP

    192:2fH1PkDL5mE2QYVaog6ktDOp+4Fm97R4JO:cH1PkDL5meO6tDcPkK

Malware Config

Extracted

Family

purecrypter

C2

http://45.84.1.117/3477/Wgmpt.dll

Extracted

Family

agenttesla

C2

https://api.telegram.org/bot5846767138:AAHbrIUF1epdWlFQ2_64LCd8vdF121y1XGE/

Signatures

  • AgentTesla

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

  • PureCrypter

    PureCrypter is a .NET malware loader first seen in early 2021.

  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
  • 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
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 11 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\zamówienie Z2300056_pdf .exe
    "C:\Users\Admin\AppData\Local\Temp\zamówienie Z2300056_pdf .exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4712
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ENC cwB0AGEAcgB0AC0AcwBsAGUAZQBwACAALQBzAGUAYwBvAG4AZABzACAAMQAyAA==
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2332
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
      C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
      2⤵
      • Accesses Microsoft Outlook profiles
      • Suspicious use of AdjustPrivilegeToken
      • outlook_office_path
      • outlook_win_path
      PID:5000

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/2332-144-0x0000000006970000-0x000000000698A000-memory.dmp

    Filesize

    104KB

  • memory/2332-139-0x0000000005630000-0x0000000005C58000-memory.dmp

    Filesize

    6.2MB

  • memory/2332-140-0x0000000005CD0000-0x0000000005D36000-memory.dmp

    Filesize

    408KB

  • memory/2332-143-0x0000000007B00000-0x000000000817A000-memory.dmp

    Filesize

    6.5MB

  • memory/2332-141-0x0000000005E40000-0x0000000005EA6000-memory.dmp

    Filesize

    408KB

  • memory/2332-138-0x0000000004EF0000-0x0000000004F26000-memory.dmp

    Filesize

    216KB

  • memory/2332-142-0x0000000006490000-0x00000000064AE000-memory.dmp

    Filesize

    120KB

  • memory/4712-136-0x0000000008640000-0x0000000008662000-memory.dmp

    Filesize

    136KB

  • memory/4712-133-0x0000000005990000-0x0000000005F34000-memory.dmp

    Filesize

    5.6MB

  • memory/4712-134-0x0000000005480000-0x0000000005512000-memory.dmp

    Filesize

    584KB

  • memory/4712-135-0x00000000058D0000-0x00000000058DA000-memory.dmp

    Filesize

    40KB

  • memory/4712-132-0x0000000000A90000-0x0000000000A9A000-memory.dmp

    Filesize

    40KB

  • memory/5000-146-0x0000000000400000-0x0000000000430000-memory.dmp

    Filesize

    192KB

  • memory/5000-147-0x00000000067B0000-0x0000000006800000-memory.dmp

    Filesize

    320KB

  • memory/5000-148-0x0000000006B10000-0x0000000006CD2000-memory.dmp

    Filesize

    1.8MB