Analysis

  • max time kernel
    178s
  • max time network
    212s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20221111-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
  • submitted
    26-11-2022 22:03

General

  • Target

    momicAlar_gpxz/@使用帮助.cmd

  • Size

    1KB

  • MD5

    64dbeaf8befb07b01a4989021ddfbb1e

  • SHA1

    10c4305148c4f7fb641a0ada7c03f6cbc77a3386

  • SHA256

    e58bd470891c6bbd4420633a502ee23ccefad1d70cd5b11c2c1b87c67ca29312

  • SHA512

    018d2e7aa65aa54ca34c82e1ac5e7b3a618afcb100d5e33eae39deab010dba4130cbcdfaadc83cff544a2eb7bc9a4aef73d1a4faa849b27f389e3fdd3c53c7bb

Score
7/10

Malware Config

Signatures

  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Enumerates physical storage devices 1 TTPs

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

  • Modifies Internet Explorer settings 1 TTPs 61 IoCs
  • Modifies Internet Explorer start page 1 TTPs 1 IoCs
  • Modifies registry class 3 IoCs
  • Runs .reg file with regedit 1 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of SetWindowsHookEx 6 IoCs
  • Suspicious use of WriteProcessMemory 7 IoCs

Processes

  • C:\Windows\system32\cmd.exe
    C:\Windows\system32\cmd.exe /c "C:\Users\Admin\AppData\Local\Temp\momicAlar_gpxz\@使用帮助.cmd"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:2020
    • C:\Windows\regedit.exe
      REGEDIT /S "C:\Users\Admin\AppData\Local\Temp.\DefOpen.reg"
      2⤵
      • Modifies Internet Explorer settings
      • Modifies Internet Explorer start page
      • Modifies registry class
      • Runs .reg file with regedit
      PID:208
    • C:\Program Files\Internet Explorer\iexplore.exe
      "C:\Program Files\Internet Explorer\iexplore.exe" http://www.geguai.com/
      2⤵
      • Modifies Internet Explorer settings
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:2208
      • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
        "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:2208 CREDAT:17410 /prefetch:2
        3⤵
        • Modifies Internet Explorer settings
        • Suspicious use of SetWindowsHookEx
        PID:3620

Network

MITRE ATT&CK Matrix ATT&CK v6

Defense Evasion

Modify Registry

2
T1112

Discovery

Query Registry

1
T1012

System Information Discovery

2
T1082

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\DefOpen.reg
    Filesize

    631B

    MD5

    21f47278069c8af79dc89aa668dfd3b4

    SHA1

    675d72919fd5b9653e3e4086c70ecb488649bd70

    SHA256

    79cc698586900744c993772ed6526bfa58d95de77a3ccb68929558dd3962c17e

    SHA512

    6c32703688520d1d65d025773315f82d278089e25924b3af89793123221265d86036512a2405b9cca8a26d83016c6da3ef03af88884b9c26bf9fe3a922903431

  • memory/208-132-0x0000000000000000-mapping.dmp