Analysis
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max time kernel
111s -
max time network
114s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system -
submitted
09/11/2024, 18:15
Behavioral task
behavioral1
Sample
ec770d9d952d8f146cfd1b65c8cab6523d6e14511c357173aa6096e115a98edaN.exe
Resource
win7-20241023-en
General
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Target
ec770d9d952d8f146cfd1b65c8cab6523d6e14511c357173aa6096e115a98edaN.exe
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Size
41KB
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MD5
d8b530521f6a4bb0ef7226b86aa89320
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SHA1
01643150e0cb326cb7987adab24409bf1d766711
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SHA256
ec770d9d952d8f146cfd1b65c8cab6523d6e14511c357173aa6096e115a98eda
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SHA512
b646b86c98f8847aace4085cb8a923553ea5358576f20db83e25c75185fc8fc83ffaa32242e6e032269911d01a4654019d6dcec92c74f9c5174997d92fdf1557
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SSDEEP
768:qTVbxjgQNQXtckstOOtEvwDpjAaD3TUogs/VXpAPWRiH:qTJu9cvMOtEvwDpjppVXzRq
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-1-5-21-2878641211-696417878-3864914810-1000\Control Panel\International\Geo\Nation ec770d9d952d8f146cfd1b65c8cab6523d6e14511c357173aa6096e115a98edaN.exe -
Executes dropped EXE 1 IoCs
pid Process 1404 asih.exe -
resource yara_rule behavioral2/memory/5052-0-0x0000000000500000-0x000000000050F000-memory.dmp upx behavioral2/files/0x000c000000023aed-13.dat upx behavioral2/memory/5052-18-0x0000000000500000-0x000000000050F000-memory.dmp upx behavioral2/memory/1404-27-0x0000000000500000-0x000000000050F000-memory.dmp upx -
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 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 ec770d9d952d8f146cfd1b65c8cab6523d6e14511c357173aa6096e115a98edaN.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language asih.exe -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 5052 wrote to memory of 1404 5052 ec770d9d952d8f146cfd1b65c8cab6523d6e14511c357173aa6096e115a98edaN.exe 84 PID 5052 wrote to memory of 1404 5052 ec770d9d952d8f146cfd1b65c8cab6523d6e14511c357173aa6096e115a98edaN.exe 84 PID 5052 wrote to memory of 1404 5052 ec770d9d952d8f146cfd1b65c8cab6523d6e14511c357173aa6096e115a98edaN.exe 84
Processes
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C:\Users\Admin\AppData\Local\Temp\ec770d9d952d8f146cfd1b65c8cab6523d6e14511c357173aa6096e115a98edaN.exe"C:\Users\Admin\AppData\Local\Temp\ec770d9d952d8f146cfd1b65c8cab6523d6e14511c357173aa6096e115a98edaN.exe"1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:5052 -
C:\Users\Admin\AppData\Local\Temp\asih.exe"C:\Users\Admin\AppData\Local\Temp\asih.exe"2⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
PID:1404
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
41KB
MD5fc27bd7d140937ba8a3e882f048a4b5e
SHA1dfc30c7de6cecee27e9afc8e746c66dfb0eeb496
SHA25669a709b117e64dbdb01754785429b807b745c03fbb1888bb35e7e1e14d9b517e
SHA512cd5cdfd361c872d337b9d77429764df1ad4ba28c52d2b8183edfc2c2ab940a8a5ed0852e507e9765e5d85380c1224743a263622d4338ccace6cb1ba0d7ca77f0