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Analysis
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max time kernel
120s -
max time network
124s -
platform
windows7_x64 -
resource
win7-20241010-en -
resource tags
arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system -
submitted
22/12/2024, 10:00
Behavioral task
behavioral1
Sample
SteamAssistant.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
SteamAssistant.exe
Resource
win10v2004-20241007-en
Behavioral task
behavioral3
Sample
key.pyc
Resource
win7-20241010-en
Behavioral task
behavioral4
Sample
key.pyc
Resource
win10v2004-20241007-en
General
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Target
key.pyc
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Size
11KB
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MD5
025d3d530a9d9bcc9425f4c8b49dd0e8
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SHA1
76f095d6ecf2250b82ff204eee78a8335ea06423
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SHA256
0a74bedf6cb4be444d542d8d72c027c843296d0ceb1849659365014e725fad11
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SHA512
ee3ee891bcca53edfe891f22351de0b9cd1a8b802e2614ba460156328dcfe16fa19dc6bdd5ff2c1ed47ae47621868f481220e3da4a27846b87da3643301d2e86
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SSDEEP
192:RqQo8/l5il3OtA7HYfddslgmRouV3B1QvSPVohu:Eq5iletcHYjjmNxB1QKPVz
Malware Config
Signatures
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Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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System Location Discovery: System Language Discovery 1 TTPs 1 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 AcroRd32.exe -
Modifies registry class 1 IoCs
description ioc Process Key created \REGISTRY\USER\S-1-5-21-3692679935-4019334568-335155002-1000_Classes\Local Settings rundll32.exe -
Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 2872 AcroRd32.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
pid Process 2872 AcroRd32.exe 2872 AcroRd32.exe -
Suspicious use of WriteProcessMemory 7 IoCs
description pid Process procid_target PID 2240 wrote to memory of 2168 2240 cmd.exe 31 PID 2240 wrote to memory of 2168 2240 cmd.exe 31 PID 2240 wrote to memory of 2168 2240 cmd.exe 31 PID 2168 wrote to memory of 2872 2168 rundll32.exe 33 PID 2168 wrote to memory of 2872 2168 rundll32.exe 33 PID 2168 wrote to memory of 2872 2168 rundll32.exe 33 PID 2168 wrote to memory of 2872 2168 rundll32.exe 33
Processes
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C:\Windows\system32\cmd.execmd /c C:\Users\Admin\AppData\Local\Temp\key.pyc1⤵
- Suspicious use of WriteProcessMemory
PID:2240 -
C:\Windows\system32\rundll32.exe"C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\key.pyc2⤵
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:2168 -
C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32.exe"C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32.exe" "C:\Users\Admin\AppData\Local\Temp\key.pyc"3⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of SetWindowsHookEx
PID:2872
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
3KB
MD570c1343494a562ec4c53789bb3c92db5
SHA140aea1c144ceba69226906860b4ce524b5738e94
SHA256bab6150ec53d251b031586e87941746060767bde3e594e20a556e4f812ac386c
SHA5121bd175c443a79a01da2647b8604e9d17fcd3097947f659f35bf520a3cdd5dde035150cdfb5e62294d007a593f047268d3318ce68da51890a5abe8d0645f88c2e