Analysis

  • max time kernel
    12s
  • max time network
    133s
  • platform
    windows7_x64
  • resource
    win7v20201028
  • submitted
    11-01-2021 08:54

General

  • Target

    PURCHASE ORDER098090.exe

  • Size

    153KB

  • MD5

    c5318a4bb156bf5ce9d8bcd2e9f2682b

  • SHA1

    521c507e63ea7237b9c85ac2973a1b53465dabae

  • SHA256

    03ce96851d1e23ce614c9f24d97727c68f0f1156a442ff0eaecff89299dd90e9

  • SHA512

    c43fec4bb7d42c614283ccfc99a57be6da3bf56109bfd54b04b4097f9e9315632a948042fb60d6176bcba804870623d26be203d9a62bedfed705a9d1992240f1

Score
10/10

Malware Config

Extracted

Family

remcos

C2

45.137.22.52:8780

Signatures

  • Remcos

    Remcos is a closed-source remote control and surveillance software.

  • Suspicious use of SetThreadContext 1 IoCs
  • Creates scheduled task(s) 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious behavior: MapViewOfSection 1 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 13 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\PURCHASE ORDER098090.exe
    "C:\Users\Admin\AppData\Local\Temp\PURCHASE ORDER098090.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: MapViewOfSection
    • Suspicious use of WriteProcessMemory
    PID:648
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c schtasks /Create /TN name /XML "C:\Users\Admin\AppData\Local\Temp\106090a2d490415c8043b5653230fce7.xml"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1232
      • C:\Windows\SysWOW64\schtasks.exe
        schtasks /Create /TN name /XML "C:\Users\Admin\AppData\Local\Temp\106090a2d490415c8043b5653230fce7.xml"
        3⤵
        • Creates scheduled task(s)
        PID:1396
    • C:\Users\Admin\AppData\Local\Temp\PURCHASE ORDER098090.exe
      "C:\Users\Admin\AppData\Local\Temp\PURCHASE ORDER098090.exe"
      2⤵
      • Suspicious use of SetWindowsHookEx
      PID:1440

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\106090a2d490415c8043b5653230fce7.xml
    MD5

    a035055e1c80bc652520df45650c690f

    SHA1

    37b8364ad46e17199eb5a7ee89bb506bba384adb

    SHA256

    2b9948d34674d0fc0f9cb290da8298441b56205f6e341e3cfa1954df42c2b655

    SHA512

    678279d1bfc8a71c27a5a2c3afa5fd266882a62610863a3e4ebc2489f17827ed4c680c89e6b8b52621320500294d2df9888259ccdc5d38def43e739c1f325fc1

  • memory/648-5-0x0000000000660000-0x0000000000672000-memory.dmp
    Filesize

    72KB

  • memory/1232-2-0x0000000000000000-mapping.dmp
  • memory/1396-7-0x0000000000000000-mapping.dmp
  • memory/1440-3-0x0000000000400000-0x0000000000417000-memory.dmp
    Filesize

    92KB

  • memory/1440-4-0x000000000040FD88-mapping.dmp
  • memory/1440-6-0x0000000000400000-0x0000000000417000-memory.dmp
    Filesize

    92KB