Analysis
- max time kernel
149s - max time network
151s - platform
windows11-21h2_x64 - resource
win11-20260513-en - resource tags
arch:x64arch:x86image:win11-20260513-enlocale:en-usos:windows11-21h2-x64systemwindows - submitted
02/06/2026, 06:36
Static task
static1
Behavioral task
behavioral1
Sample
tmpjyann2nf.dll
Resource
win10ltsc2021-20260513-en
Behavioral task
behavioral2
Sample
tmpjyann2nf.dll
Resource
win10v2004-20260513-en
Behavioral task
behavioral3
Sample
tmpjyann2nf.dll
Resource
win11-20260513-en
General
- Target tmpjyann2nf.dll
- Size 241KB
- Sample260602-hdazzsft5x
- SHA256 532e67f58bdc181f0df5428f72356c58a0bcfbd85b721564242983ac6e1e39bc
- MD5 ffa77881125bf57404030e36da398409
- SHA1 656b53696aa723ff9ff0df3181123b9acddeebf5
- SHA512 cfe44bde650e8379bbf005d42eeb1db24b25b513403ce3463abc1624bfb34256828fcdd7a87e936215d94c3ac4083d24c3f0e5d547f245ecb6fcd32abb074a84
- SSDEEP 6144:RiZ1hl93SA4HVd78uWBf2GMWT0e2dbwyVFrCFMD0:RiZXl93x4j78uWIGMdNwp
- TLSH T11734AD2C9980A9E2CD8A13B7E5D59F2F75788C1C7BBD6FB264E23CCB8614910660135F
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Extracted
-
zloader
-
DLLobnova
-
newupdate326
-
https://fdsjfjdsfjdsdsjajjs.com/gate.php
-
https://idisaudhasdhasdj.com/gate.php
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https://dsjdjsjdsadhasdas.com/gate.php
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https://dsdjfhdsufudhjas.com/gate.php
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https://dsdjfhdsufudhjas.info/gate.php
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https://fdsjfjdsfjdsdsjajjs.info/gate.php
-
https://idisaudhasdhasdj.info/gate.php
-
https://dsdjfhdsufudhjas.pro/gate.php
-
https://dsdjfhd9ddksaas.pro/gate.php
-
build_id
82
Signatures
- Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-125073035-2952146151-721812867-1000\Software\Microsoft\Windows\CurrentVersion\Run\Ecog = "rundll32.exe C:\\Users\\Admin\\AppData\\Roaming\\Yhurfi\\uxnuw.dll,DllRegisterServer" msiexec.exe - Badlisted process makes network request 6 IoCs
Network request originating from process or tool commonly abused by malware.
flow pid Process 2 920 msiexec.exe 3 920 msiexec.exe 4 920 msiexec.exe 6 920 msiexec.exe 7 920 msiexec.exe 8 920 msiexec.exe - Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 3328 set thread context of 920 3328 rundll32.exe 84 - Drops file in Windows directory 1 IoCs
description ioc Process File opened for modification C:\Windows\win.ini rundll32.exe - 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.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language rundll32.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language msiexec.exe - Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeSecurityPrivilege 920 msiexec.exe Token: SeSecurityPrivilege 920 msiexec.exe - Suspicious use of FindShellTrayWindow 1 IoCs
pid Process 3328 rundll32.exe - Suspicious use of SendNotifyMessage 1 IoCs
pid Process 3328 rundll32.exe - Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 4728 wrote to memory of 3328 4728 rundll32.exe 82 PID 3328 wrote to memory of 920 3328 rundll32.exe 84 PID 3328 wrote to memory of 920 3328 rundll32.exe 84
Processes
-
C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\tmpjyann2nf.dll,#11⤵
- Suspicious use of WriteProcessMemory
PID:4728 -
C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\tmpjyann2nf.dll,#12⤵
- Suspicious use of SetThreadContext
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:3328 -
C:\Windows\SysWOW64\msiexec.exemsiexec.exe3⤵
- Adds Run key to start application
- Badlisted process makes network request
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
PID:920
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