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Analysis

  • max time kernel
    93s
  • max time network
    152s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    02/12/2024, 21:27

General

  • Target

    240827 YONG SHUN - GMDSS.exe

  • Size

    721KB

  • MD5

    f0e3355c1070c64e99331172426e4378

  • SHA1

    ce7ed5a4e13477785be53c78f60ddc31876d50fc

  • SHA256

    72c26861a3c6ed2f44684225894a20aef9d9c831322b5f24313e0c9ddfbf3ccb

  • SHA512

    89e51b2db7d90dd25aa3dd0cc248e0b3b44d75305e0ba5829dfc9cbb9d74cce2ac91073de326fdd67992524632a9f1f7218187c5e255177d1c1f08e125339287

  • SSDEEP

    12288:UfAbXkhMOoltiJX02vQp9XbzhNaSiVMTW9GvWbzfl/VP8MlGDDut6UrYm:pkh5oDiJNU9NwMTQ6U4JDut6UrYm

Score
8/10

Malware Config

Signatures

  • Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

    Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Suspicious behavior: EnumeratesProcesses 16 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 9 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\240827 YONG SHUN - GMDSS.exe
    "C:\Users\Admin\AppData\Local\Temp\240827 YONG SHUN - GMDSS.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:548
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\240827 YONG SHUN - GMDSS.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:4488
    • C:\Users\Admin\AppData\Local\Temp\240827 YONG SHUN - GMDSS.exe
      "C:\Users\Admin\AppData\Local\Temp\240827 YONG SHUN - GMDSS.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      PID:1636

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_54iscjfq.2zy.ps1

    Filesize

    60B

    MD5

    d17fe0a3f47be24a6453e9ef58c94641

    SHA1

    6ab83620379fc69f80c0242105ddffd7d98d5d9d

    SHA256

    96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

    SHA512

    5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

  • memory/548-8-0x0000000005640000-0x000000000565C000-memory.dmp

    Filesize

    112KB

  • memory/548-11-0x0000000006BE0000-0x0000000006C6E000-memory.dmp

    Filesize

    568KB

  • memory/548-3-0x0000000005150000-0x00000000051E2000-memory.dmp

    Filesize

    584KB

  • memory/548-4-0x0000000005C10000-0x0000000005F64000-memory.dmp

    Filesize

    3.3MB

  • memory/548-5-0x0000000005310000-0x000000000531A000-memory.dmp

    Filesize

    40KB

  • memory/548-6-0x0000000074570000-0x0000000074D20000-memory.dmp

    Filesize

    7.7MB

  • memory/548-7-0x0000000005400000-0x000000000549C000-memory.dmp

    Filesize

    624KB

  • memory/548-0-0x000000007457E000-0x000000007457F000-memory.dmp

    Filesize

    4KB

  • memory/548-2-0x0000000005660000-0x0000000005C04000-memory.dmp

    Filesize

    5.6MB

  • memory/548-9-0x000000007457E000-0x000000007457F000-memory.dmp

    Filesize

    4KB

  • memory/548-10-0x0000000074570000-0x0000000074D20000-memory.dmp

    Filesize

    7.7MB

  • memory/548-1-0x0000000000690000-0x000000000074A000-memory.dmp

    Filesize

    744KB

  • memory/548-15-0x0000000074570000-0x0000000074D20000-memory.dmp

    Filesize

    7.7MB

  • memory/1636-13-0x0000000000400000-0x0000000000447000-memory.dmp

    Filesize

    284KB

  • memory/1636-65-0x0000000000400000-0x0000000000447000-memory.dmp

    Filesize

    284KB

  • memory/1636-64-0x0000000000EF0000-0x000000000123A000-memory.dmp

    Filesize

    3.3MB

  • memory/1636-63-0x0000000000400000-0x0000000000447000-memory.dmp

    Filesize

    284KB

  • memory/1636-12-0x0000000000400000-0x0000000000447000-memory.dmp

    Filesize

    284KB

  • memory/4488-23-0x00000000053C0000-0x0000000005426000-memory.dmp

    Filesize

    408KB

  • memory/4488-50-0x0000000007550000-0x00000000075F3000-memory.dmp

    Filesize

    652KB

  • memory/4488-21-0x00000000052B0000-0x00000000052D2000-memory.dmp

    Filesize

    136KB

  • memory/4488-20-0x00000000745F0000-0x0000000074DA0000-memory.dmp

    Filesize

    7.7MB

  • memory/4488-24-0x0000000005D50000-0x00000000060A4000-memory.dmp

    Filesize

    3.3MB

  • memory/4488-18-0x00000000745F0000-0x0000000074DA0000-memory.dmp

    Filesize

    7.7MB

  • memory/4488-34-0x0000000006330000-0x000000000634E000-memory.dmp

    Filesize

    120KB

  • memory/4488-35-0x00000000063C0000-0x000000000640C000-memory.dmp

    Filesize

    304KB

  • memory/4488-36-0x0000000006930000-0x0000000006962000-memory.dmp

    Filesize

    200KB

  • memory/4488-38-0x00000000745F0000-0x0000000074DA0000-memory.dmp

    Filesize

    7.7MB

  • memory/4488-37-0x0000000070410000-0x000000007045C000-memory.dmp

    Filesize

    304KB

  • memory/4488-49-0x00000000745F0000-0x0000000074DA0000-memory.dmp

    Filesize

    7.7MB

  • memory/4488-48-0x0000000006910000-0x000000000692E000-memory.dmp

    Filesize

    120KB

  • memory/4488-22-0x0000000005350000-0x00000000053B6000-memory.dmp

    Filesize

    408KB

  • memory/4488-52-0x0000000007670000-0x000000000768A000-memory.dmp

    Filesize

    104KB

  • memory/4488-51-0x0000000007CC0000-0x000000000833A000-memory.dmp

    Filesize

    6.5MB

  • memory/4488-53-0x00000000076E0000-0x00000000076EA000-memory.dmp

    Filesize

    40KB

  • memory/4488-54-0x00000000078F0000-0x0000000007986000-memory.dmp

    Filesize

    600KB

  • memory/4488-55-0x0000000007870000-0x0000000007881000-memory.dmp

    Filesize

    68KB

  • memory/4488-56-0x00000000078A0000-0x00000000078AE000-memory.dmp

    Filesize

    56KB

  • memory/4488-57-0x00000000078B0000-0x00000000078C4000-memory.dmp

    Filesize

    80KB

  • memory/4488-58-0x00000000079B0000-0x00000000079CA000-memory.dmp

    Filesize

    104KB

  • memory/4488-59-0x0000000007990000-0x0000000007998000-memory.dmp

    Filesize

    32KB

  • memory/4488-62-0x00000000745F0000-0x0000000074DA0000-memory.dmp

    Filesize

    7.7MB

  • memory/4488-19-0x0000000005520000-0x0000000005B48000-memory.dmp

    Filesize

    6.2MB

  • memory/4488-16-0x00000000745FE000-0x00000000745FF000-memory.dmp

    Filesize

    4KB

  • memory/4488-17-0x0000000004DB0000-0x0000000004DE6000-memory.dmp

    Filesize

    216KB