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Analysis
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max time kernel
85s -
max time network
109s -
platform
windows10-2004_x64 -
resource
win10v2004-20220812-en -
resource tags
arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system -
submitted
19/09/2022, 00:03
Behavioral task
behavioral1
Sample
c1a6167996287344182a204c9b7350f137b067a7e5e31065ac9f82fa6b2e15a3.exe
Resource
win7-20220901-en
Behavioral task
behavioral2
Sample
c1a6167996287344182a204c9b7350f137b067a7e5e31065ac9f82fa6b2e15a3.exe
Resource
win10v2004-20220812-en
General
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Target
c1a6167996287344182a204c9b7350f137b067a7e5e31065ac9f82fa6b2e15a3.exe
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Size
9KB
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MD5
a0872213df9595006c60943e38862c71
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SHA1
d68654aba24134eaf2fb3b9188fec949ae4ed778
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SHA256
c1a6167996287344182a204c9b7350f137b067a7e5e31065ac9f82fa6b2e15a3
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SHA512
e9a278b4c8db5fe601f044a77576e2ee2823f35cf3488e9eff49bff9c89b69a6bdb0ad1d4030e5b31e04092a7277d8732ae465922b2130f2b8fa029067cf0d9b
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SSDEEP
192:NjG63LaKnIwF+G12P52DDOJ7ieIuQI+lkHMu:NjG6baKIwFv12P5iDOlieRlqAMu
Malware Config
Signatures
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Executes dropped EXE 1 IoCs
pid Process 4764 uninstall.exe -
resource yara_rule behavioral2/memory/4696-132-0x0000000000400000-0x000000000040B000-memory.dmp upx behavioral2/files/0x0007000000022e1f-135.dat upx behavioral2/files/0x0007000000022e1f-134.dat upx -
Checks BIOS information in registry 2 TTPs 1 IoCs
BIOS information is often read in order to detect sandboxing environments.
description ioc Process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion uninstall.exe -
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-1-5-21-2629973501-4017243118-3254762364-1000\Control Panel\International\Geo\Nation c1a6167996287344182a204c9b7350f137b067a7e5e31065ac9f82fa6b2e15a3.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Checks processor information in registry 2 TTPs 2 IoCs
Processor information is often read in order to detect sandboxing environments.
description ioc Process Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 uninstall.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier uninstall.exe -
Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 4764 uninstall.exe 4764 uninstall.exe -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 4696 wrote to memory of 4764 4696 c1a6167996287344182a204c9b7350f137b067a7e5e31065ac9f82fa6b2e15a3.exe 82 PID 4696 wrote to memory of 4764 4696 c1a6167996287344182a204c9b7350f137b067a7e5e31065ac9f82fa6b2e15a3.exe 82 PID 4696 wrote to memory of 4764 4696 c1a6167996287344182a204c9b7350f137b067a7e5e31065ac9f82fa6b2e15a3.exe 82
Processes
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C:\Users\Admin\AppData\Local\Temp\c1a6167996287344182a204c9b7350f137b067a7e5e31065ac9f82fa6b2e15a3.exe"C:\Users\Admin\AppData\Local\Temp\c1a6167996287344182a204c9b7350f137b067a7e5e31065ac9f82fa6b2e15a3.exe"1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4696 -
C:\Users\Admin\AppData\Local\Temp\uninstall.exe"C:\Users\Admin\AppData\Local\Temp\uninstall.exe" /remove2⤵
- Executes dropped EXE
- Checks BIOS information in registry
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
PID:4764
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
9KB
MD5a0872213df9595006c60943e38862c71
SHA1d68654aba24134eaf2fb3b9188fec949ae4ed778
SHA256c1a6167996287344182a204c9b7350f137b067a7e5e31065ac9f82fa6b2e15a3
SHA512e9a278b4c8db5fe601f044a77576e2ee2823f35cf3488e9eff49bff9c89b69a6bdb0ad1d4030e5b31e04092a7277d8732ae465922b2130f2b8fa029067cf0d9b
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Filesize
9KB
MD5a0872213df9595006c60943e38862c71
SHA1d68654aba24134eaf2fb3b9188fec949ae4ed778
SHA256c1a6167996287344182a204c9b7350f137b067a7e5e31065ac9f82fa6b2e15a3
SHA512e9a278b4c8db5fe601f044a77576e2ee2823f35cf3488e9eff49bff9c89b69a6bdb0ad1d4030e5b31e04092a7277d8732ae465922b2130f2b8fa029067cf0d9b