d9f0f37aea28dc203652dd5622c58f7bb34547a05b0bc8c9d9c14e66cd3540e2

Resubmissions

19/08/2026, 12:23

260819-pkxkwswtd18

19/08/2026, 11:47

260819-nybd5sef977

19/08/2026, 11:27

260819-nkkewsvvat8

06/08/2026, 22:49

260806-2rqgdabp9x8

Analysis

max time kernel
898s
max time network
904s
platform
windows10-2004_x64
resource
win10v2004-20260513-en
resource tags

arch:x64arch:x86image:win10v2004-20260513-enlocale:en-usos:windows10-2004-x64systemwindows
submitted
19/08/2026, 11:47

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Report Analysis Logs

General

Target
WinSessionGuard.exe
Size 62.1MB
Sample260819-nybd5sef97
SHA256 d9f0f37aea28dc203652dd5622c58f7bb34547a05b0bc8c9d9c14e66cd3540e2
MD5 cea06da86e6077b37d0e279522da6280
SHA1 4e5285de204521aa28fe470410f13a2afe820d9a
SHA512 192b4cc117998c51ff524f2b155d45262bd78acbc23579e5f5163c7e9c867101c21aadd95f5e7a4820d38a6455c04ce8857c79b37302b2290e14e9b4a37a9424
SSDEEP 1572864:SshFXzeAH2KVSmoBcoO7qdQeno9iwCm7ud:jznVsOoO7qWemitmid
TLSH
T17CE712EB28D081BCC4D2C530D24E5AFAF09934B90FBA985B7FC659012A31DD5CDB6936
MD5 SHA1 SHA512 SSDEEP TLSH

Score

7^/10

defense_evasion execution

Malware Config

Signatures

Checks computer location settings 2 TTPs 1 IoCs

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

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-889581200-2041691093-2048517887-1000\Control Panel\International\Geo\Nation	WinSessionGuard.exe

Executes dropped EXE 2 IoCs

pid	Process
5028	omarr.exe
3876	WinSessionGuard.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Executes a command shell one-liner 1 TTPs 3 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
2908	cmd.exe
3668	cmd.exe
1704	cmd.exe

Delays execution with timeout.exe 1 IoCs

defense_evasion

pid	Process
3292	timeout.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 952 wrote to memory of 5028	952	WinSessionGuard.exe	85
PID 952 wrote to memory of 3876	952	WinSessionGuard.exe	88
PID 5028 wrote to memory of 2908	5028	omarr.exe	90
PID 2908 wrote to memory of 1972	2908	cmd.exe	91
PID 2908 wrote to memory of 4156	2908	cmd.exe	92
PID 2908 wrote to memory of 884	2908	cmd.exe	93
PID 5028 wrote to memory of 3668	5028	omarr.exe	94
PID 3668 wrote to memory of 1704	3668	cmd.exe	95
PID 1704 wrote to memory of 3292	1704	cmd.exe	100

C:\Users\Admin\AppData\Local\Temp\WinSessionGuard.exe
"C:\Users\Admin\AppData\Local\Temp\WinSessionGuard.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:952
- C:\Users\Admin\AppData\Local\Temp\omarr.exe
  "C:\Users\Admin\AppData\Local\Temp\omarr.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of WriteProcessMemory
  PID:5028
- - C:\Windows\system32\cmd.exe
    C:\Windows\system32\cmd.exe /c certutil -hashfile "C:\Users\Admin\AppData\Local\Temp\omarr.exe" MD5 | find /i /v "md5" | find /i /v "certutil"
    3⤵
    - Executes a command shell one-liner
    - Suspicious use of WriteProcessMemory
    PID:2908
  - - C:\Windows\system32\certutil.exe
      certutil -hashfile "C:\Users\Admin\AppData\Local\Temp\omarr.exe" MD5
      4⤵
      PID:1972
  - - C:\Windows\system32\find.exe
      find /i /v "md5"
      4⤵
      PID:4156
  - - C:\Windows\system32\find.exe
      find /i /v "certutil"
      4⤵
      PID:884
- - C:\Windows\system32\cmd.exe
    C:\Windows\system32\cmd.exe /c start cmd /C "color b && title Error && echo You need to run the KeyAuthApp.init(); function before any other KeyAuth functions && timeout /t 5"
    3⤵
    - Executes a command shell one-liner
    - Suspicious use of WriteProcessMemory
    PID:3668
  - - C:\Windows\system32\cmd.exe
      cmd /C "color b && title Error && echo You need to run the KeyAuthApp.init(); function before any other KeyAuth functions && timeout /t 5"
      4⤵
      Executes a command shell one-liner
      Suspicious use of WriteProcessMemory
      PID:1704
    - - C:\Windows\system32\timeout.exe
        
        timeout /t 5
        5⤵
        Delays execution with timeout.exe
        
        PID:3292
- C:\Users\Admin\AppData\Local\Microsoft\Protect\WinSessionGuard.exe
  "C:\Users\Admin\AppData\Local\Microsoft\Protect\WinSessionGuard.exe" --self
  2⤵
  - Executes dropped EXE
  PID:3876

Network

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

Windows Command Shell

T1059.003

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/5028-11-0x00007FF648BC0000-0x00007FF64CC4D000-memory.dmp

Download

memory/5028-12-0x00007FF648BC0000-0x00007FF64CC4D000-memory.dmp