Analysis

  • max time kernel
    38s
  • max time network
    140s
  • platform
    windows7_x64
  • resource
    win7-20221111-en
  • resource tags

    arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
  • submitted
    14-02-2023 11:36

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.

  • 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 17 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⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:624
    • 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:1912
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
      C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
      2⤵
        PID:328
      • 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:952

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/624-54-0x0000000000F20000-0x0000000000F2A000-memory.dmp

      Filesize

      40KB

    • memory/624-55-0x0000000075F01000-0x0000000075F03000-memory.dmp

      Filesize

      8KB

    • memory/624-56-0x0000000005380000-0x0000000005434000-memory.dmp

      Filesize

      720KB

    • memory/624-57-0x00000000009C0000-0x00000000009DA000-memory.dmp

      Filesize

      104KB

    • memory/952-65-0x0000000000400000-0x0000000000430000-memory.dmp

      Filesize

      192KB

    • memory/952-62-0x0000000000400000-0x0000000000430000-memory.dmp

      Filesize

      192KB

    • memory/952-63-0x0000000000400000-0x0000000000430000-memory.dmp

      Filesize

      192KB

    • memory/952-66-0x0000000000400000-0x0000000000430000-memory.dmp

      Filesize

      192KB

    • memory/952-67-0x0000000000400000-0x0000000000430000-memory.dmp

      Filesize

      192KB

    • memory/952-70-0x0000000000400000-0x0000000000430000-memory.dmp

      Filesize

      192KB

    • memory/952-72-0x0000000000400000-0x0000000000430000-memory.dmp

      Filesize

      192KB

    • memory/1912-60-0x000000006E900000-0x000000006EEAB000-memory.dmp

      Filesize

      5.7MB

    • memory/1912-61-0x000000006E900000-0x000000006EEAB000-memory.dmp

      Filesize

      5.7MB