Analysis

  • max time kernel
    12s
  • max time network
    141s
  • platform
    windows7_x64
  • resource
    win7v20201028
  • submitted
    18-01-2021 09:04

General

  • Target

    09000090INVOICE.exe

  • Size

    210KB

  • MD5

    f4d2193e00008bd236c7658fc0cff060

  • SHA1

    f6b7a99d48415ebb3ab6a178e211234e11040629

  • SHA256

    9d692165cbb8d2a181769b723e7300b02f534fec4563d4bd155b4c293d6ebe72

  • SHA512

    3383c50ca92c0eaabd487444057783e32da41fac60a5361dbf755e610ab86b48367d3cce338ebb17abf53d03154fe609d4b15eb9a02b999a5e249d4dcab7c88c

Score
10/10

Malware Config

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 FindShellTrayWindow 1 IoCs
  • Suspicious use of SendNotifyMessage 1 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 13 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\09000090INVOICE.exe
    "C:\Users\Admin\AppData\Local\Temp\09000090INVOICE.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: MapViewOfSection
    • Suspicious use of WriteProcessMemory
    PID:776
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c schtasks /Create /TN name /XML "C:\Users\Admin\AppData\Local\Temp\b4c1fd50750347b0a2612422daa06852.xml"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2004
      • C:\Windows\SysWOW64\schtasks.exe
        schtasks /Create /TN name /XML "C:\Users\Admin\AppData\Local\Temp\b4c1fd50750347b0a2612422daa06852.xml"
        3⤵
        • Creates scheduled task(s)
        PID:1976
    • C:\Users\Admin\AppData\Local\Temp\09000090INVOICE.exe
      "C:\Users\Admin\AppData\Local\Temp\09000090INVOICE.exe"
      2⤵
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      • Suspicious use of SetWindowsHookEx
      PID:2020

Network

MITRE ATT&CK Matrix ATT&CK v6

Execution

Scheduled Task

1
T1053

Persistence

Scheduled Task

1
T1053

Privilege Escalation

Scheduled Task

1
T1053

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\b4c1fd50750347b0a2612422daa06852.xml
    MD5

    a035055e1c80bc652520df45650c690f

    SHA1

    37b8364ad46e17199eb5a7ee89bb506bba384adb

    SHA256

    2b9948d34674d0fc0f9cb290da8298441b56205f6e341e3cfa1954df42c2b655

    SHA512

    678279d1bfc8a71c27a5a2c3afa5fd266882a62610863a3e4ebc2489f17827ed4c680c89e6b8b52621320500294d2df9888259ccdc5d38def43e739c1f325fc1

  • memory/776-2-0x0000000075C61000-0x0000000075C63000-memory.dmp
    Filesize

    8KB

  • memory/1976-6-0x0000000000000000-mapping.dmp
  • memory/2004-3-0x0000000000000000-mapping.dmp
  • memory/2020-4-0x00000000004172EC-mapping.dmp
  • memory/2020-8-0x0000000000400000-0x0000000000419000-memory.dmp
    Filesize

    100KB