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Analysis
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max time kernel
100s -
max time network
101s -
platform
windows10-2004_x64 -
resource
win10v2004-20240802-en -
resource tags
arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system -
submitted
18/08/2024, 00:48
Behavioral task
behavioral1
Sample
09f8456cc2de8bb7f2e68268788b8b60N.exe
Resource
win7-20240705-en
Behavioral task
behavioral2
Sample
09f8456cc2de8bb7f2e68268788b8b60N.exe
Resource
win10v2004-20240802-en
General
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Target
09f8456cc2de8bb7f2e68268788b8b60N.exe
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Size
135KB
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MD5
09f8456cc2de8bb7f2e68268788b8b60
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SHA1
73b7c211c60b3d61157251e2b52016a3319cba1b
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SHA256
1c12ecb57f113a18084e8034ff757adf3dfecb8e06b954ac08dd3f0ddd533591
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SHA512
41cb8e80503aac4ac4611ab8addd6f31cf0465d81b2de61d455869ce2b74a9ad66b81c9a7cbe3b91960b87a070b5d059c7107fd5f68dafe5b855af6dc1c30a1a
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SSDEEP
1536:YGYU/W2/HG6QMauSV3ixJHABLrmhH7i9eNOOg00GqMIK7aGZh3SOq:YfU/WF6QMauSuiWNi9eNOl0007NZIOq
Malware Config
Signatures
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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-1-5-21-945322488-2060912225-3527527000-1000\Control Panel\International\Geo\Nation 09f8456cc2de8bb7f2e68268788b8b60N.exe -
Executes dropped EXE 1 IoCs
pid Process 3444 wuauclt.exe -
resource yara_rule behavioral2/memory/2012-0-0x00000000005B0000-0x00000000005D8000-memory.dmp upx behavioral2/memory/3444-4-0x00000000009C0000-0x00000000009E8000-memory.dmp upx behavioral2/files/0x0007000000023455-3.dat upx behavioral2/memory/2012-6-0x00000000005B0000-0x00000000005D8000-memory.dmp upx behavioral2/memory/3444-7-0x00000000009C0000-0x00000000009E8000-memory.dmp upx behavioral2/memory/2012-8-0x00000000005B0000-0x00000000005D8000-memory.dmp upx -
Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\Window Update = "\"C:\\ProgramData\\Update\\wuauclt.exe\" /run" 09f8456cc2de8bb7f2e68268788b8b60N.exe -
Indicator Removal: File Deletion 1 TTPs
Adversaries may delete files left behind by the actions of their intrusion activity.
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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 3 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 09f8456cc2de8bb7f2e68268788b8b60N.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language wuauclt.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language cmd.exe -
Suspicious use of WriteProcessMemory 6 IoCs
description pid Process procid_target PID 2012 wrote to memory of 3444 2012 09f8456cc2de8bb7f2e68268788b8b60N.exe 84 PID 2012 wrote to memory of 3444 2012 09f8456cc2de8bb7f2e68268788b8b60N.exe 84 PID 2012 wrote to memory of 3444 2012 09f8456cc2de8bb7f2e68268788b8b60N.exe 84 PID 2012 wrote to memory of 3212 2012 09f8456cc2de8bb7f2e68268788b8b60N.exe 97 PID 2012 wrote to memory of 3212 2012 09f8456cc2de8bb7f2e68268788b8b60N.exe 97 PID 2012 wrote to memory of 3212 2012 09f8456cc2de8bb7f2e68268788b8b60N.exe 97
Processes
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C:\Users\Admin\AppData\Local\Temp\09f8456cc2de8bb7f2e68268788b8b60N.exe"C:\Users\Admin\AppData\Local\Temp\09f8456cc2de8bb7f2e68268788b8b60N.exe"1⤵
- Checks computer location settings
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2012 -
C:\ProgramData\Update\wuauclt.exe"C:\ProgramData\Update\wuauclt.exe" /run2⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
PID:3444
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C:\windows\SysWOW64\cmd.exe"C:\windows\system32\cmd.exe" /c del /q "C:\Users\Admin\AppData\Local\Temp\09f8456cc2de8bb7f2e68268788b8b60N.exe" >> NUL2⤵
- System Location Discovery: System Language Discovery
PID:3212
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
135KB
MD50ccc34971b66bf32174ed4d48eb72d0d
SHA1bbddd2aab15e0e15077950e7c8dc55b4bb7ec901
SHA256dab2bfaf29ae6d4631bb5ab97f83f6de03abb080d522d081e431c41f7f691a95
SHA51281bf90038f9019c3275ecf16bae22f0222a0e5347df5c8d4af2af05119edb6232e1dffbf17c4378ddcd7d548357b5059d8259a37a1395b948c537f49cff082a5