Analysis
- max time kernel
150s - max time network
152s - platform
windows10-2004_x64 - resource
win10v2004-20260513-en - resource tags
arch:x64arch:x86image:win10v2004-20260513-enlocale:en-usos:windows10-2004-x64systemwindows - submitted
27/08/2026, 12:26
Behavioral task
behavioral1
Sample
ven9392.exe
Resource
win10v2004-20260513-en
15 signatures
150 seconds
Behavioral task
behavioral2
Sample
ven9392.exe
Resource
win11ltsc2024-20260710-en
13 signatures
150 seconds
General
- Target ven9392.exe
- Size 3.3MB
- Sample260827-pmjrtavanb
- SHA256 155d1dce8e17b107b531b80b648f1a3fcbcbed764d76a39b0b3972d9424dd2f7
- MD5 0268fde13e99c555ed4a4c6ef193b9ea
- SHA1 ff5db489782f10217946f75450803f6c835108c5
- SHA512 d6cefe8aa77a13d64eccbc121368d3f0cc36a954b91cb79d463c1634bef5b3d71ccf9d0e3675d51a3972797bcaf1047b92ee43fc04bf757e452edb2501cc6baa
- SSDEEP 49152:4HSarve2wIDiFilNkzVMWzU0hdBdo+6WuDayPAr/NJJ8:4i29Dxb8h
- TLSH T162F54B41ABE8CE1BE1BF2775A4F200125BB1E449E732DB4B1694E6792C637406D0A37F
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Signatures
- Family: StormKitty
StormKitty is an open source info stealer written in C#.
- Async RAT payload 1 IoCs
resource yara_rule behavioral1/files/0x000500000001e4ea-7.dat family_asyncrat - StormKitty payload 2 IoCs
resource yara_rule behavioral1/memory/4600-0-0x00000000003B0000-0x00000000006FA000-memory.dmp family_stormkitty behavioral1/files/0x000500000001e4ea-7.dat family_stormkitty - Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-204488895-2999877624-296153668-1000\Control Panel\International\Geo\Nation ven9392.exe - Executes dropped EXE 2 IoCs
pid Process 2900 Wihnup.exe 4756 Wihnup.exe - Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- 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.
pid Process 3984 cmd.exe 1444 cmd.exe - Delays execution with timeout.exe 1 IoCs
pid Process 312 timeout.exe - Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
pid Process 1748 schtasks.exe - Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 4600 ven9392.exe 4600 ven9392.exe 4600 ven9392.exe 4600 ven9392.exe 4600 ven9392.exe 4600 ven9392.exe 4600 ven9392.exe 4600 ven9392.exe 4600 ven9392.exe 4600 ven9392.exe 4600 ven9392.exe 4600 ven9392.exe 4600 ven9392.exe 4600 ven9392.exe 4600 ven9392.exe 4600 ven9392.exe 4600 ven9392.exe 4600 ven9392.exe 4600 ven9392.exe 4600 ven9392.exe 4600 ven9392.exe 4600 ven9392.exe 4600 ven9392.exe 4600 ven9392.exe 4600 ven9392.exe 4600 ven9392.exe 4600 ven9392.exe 4600 ven9392.exe 4600 ven9392.exe 2900 Wihnup.exe 2900 Wihnup.exe 2900 Wihnup.exe 2900 Wihnup.exe 2900 Wihnup.exe 2900 Wihnup.exe 2900 Wihnup.exe 2900 Wihnup.exe 2900 Wihnup.exe 2900 Wihnup.exe 2900 Wihnup.exe 2900 Wihnup.exe 2900 Wihnup.exe 2900 Wihnup.exe 2900 Wihnup.exe 2900 Wihnup.exe 2900 Wihnup.exe 2900 Wihnup.exe 2900 Wihnup.exe 2900 Wihnup.exe 2900 Wihnup.exe 2900 Wihnup.exe 2900 Wihnup.exe 2900 Wihnup.exe 2900 Wihnup.exe 2900 Wihnup.exe 2900 Wihnup.exe 2900 Wihnup.exe 2900 Wihnup.exe 2900 Wihnup.exe 2900 Wihnup.exe 2900 Wihnup.exe 2900 Wihnup.exe 2900 Wihnup.exe 2900 Wihnup.exe - Suspicious use of AdjustPrivilegeToken 4 IoCs
description pid Process Token: SeDebugPrivilege 4600 ven9392.exe Token: SeDebugPrivilege 4600 ven9392.exe Token: SeDebugPrivilege 2900 Wihnup.exe Token: SeDebugPrivilege 2900 Wihnup.exe - Suspicious use of SetWindowsHookEx 1 IoCs
pid Process 2900 Wihnup.exe - Suspicious use of WriteProcessMemory 5 IoCs
description pid Process procid_target PID 4600 wrote to memory of 1444 4600 ven9392.exe 89 PID 4600 wrote to memory of 3984 4600 ven9392.exe 91 PID 3984 wrote to memory of 312 3984 cmd.exe 93 PID 1444 wrote to memory of 1748 1444 cmd.exe 94 PID 3984 wrote to memory of 4756 3984 cmd.exe 97 - Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
Processes
-
C:\Users\Admin\AppData\Local\Temp\ven9392.exe"C:\Users\Admin\AppData\Local\Temp\ven9392.exe"1⤵
- Checks computer location settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4600 -
C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "Wihnup" /tr '"C:\Users\Admin\AppData\Local\Temp\Wihnup.exe"' & exit2⤵
- Executes a command shell one-liner
- Suspicious use of WriteProcessMemory
PID:1444 -
C:\Windows\system32\schtasks.exeschtasks /create /f /sc onlogon /rl highest /tn "Wihnup" /tr '"C:\Users\Admin\AppData\Local\Temp\Wihnup.exe"'3⤵
- Scheduled Task/Job: Scheduled Task
PID:1748
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C:\Windows\system32\cmd.exeC:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp4AC0.tmp.bat""2⤵
- Executes a command shell one-liner
- Suspicious use of WriteProcessMemory
PID:3984 -
C:\Windows\system32\timeout.exetimeout 33⤵
- Delays execution with timeout.exe
PID:312
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C:\Users\Admin\AppData\Local\Temp\Wihnup.exe"C:\Users\Admin\AppData\Local\Temp\Wihnup.exe"3⤵
- Executes dropped EXE
PID:4756
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C:\Users\Admin\AppData\Local\Temp\Wihnup.exe"C:\Users\Admin\AppData\Local\Temp\Wihnup.exe"1⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
PID:2900
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\Temp\Wihnup.exe
- Size 3.3MB
- SHA256 155d1dce8e17b107b531b80b648f1a3fcbcbed764d76a39b0b3972d9424dd2f7
- MD5 0268fde13e99c555ed4a4c6ef193b9ea
- SHA1 ff5db489782f10217946f75450803f6c835108c5
- SHA512 d6cefe8aa77a13d64eccbc121368d3f0cc36a954b91cb79d463c1634bef5b3d71ccf9d0e3675d51a3972797bcaf1047b92ee43fc04bf757e452edb2501cc6baa
- SSDEEP 49152:4HSarve2wIDiFilNkzVMWzU0hdBdo+6WuDayPAr/NJJ8:4i29Dxb8h
- TLSH T162F54B41ABE8CE1BE1BF2775A4F200125BB1E449E732DB4B1694E6792C637406D0A37F
- MD5 SHA1 SHA512 SSDEEP TLSH
- Path C:\Users\Admin\AppData\Local\Temp\tmp4AC0.tmp.bat
- Size 153B
- SHA256 c97d431acf0b283bc18fc86fa06e2aee98559a6ebfa296083a7eba1b1b79bff5
- MD5 cb118154fe2a8f7b46004bc99cdcae2b
- SHA1 f4119d9591591ebfbfc5f7bf72708bc93033fb86
- SHA512 375373265fbc3786832497cd0b2c709230fe6e75b64b7b115e7d57d65a9871e85284d47d91262e112c0e79154185d9674fe28837598fd785f7810554cac5dea5
- TLSH T144C02B4295C7EA6E1C08345705FBD5CCD1B22C1E3F41FB70C348805D128044EF0D9341
- MD5 SHA1 SHA512 TLSH