Analysis
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max time kernel
135s -
max time network
140s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system -
submitted
31/10/2024, 03:31
Behavioral task
behavioral1
Sample
ac450bd1a101625b820e73a90f7f2e96c7688020620167fa4ac390934f4c4abf.exe
Resource
win7-20241010-en
Behavioral task
behavioral2
Sample
ac450bd1a101625b820e73a90f7f2e96c7688020620167fa4ac390934f4c4abf.exe
Resource
win10v2004-20241007-en
General
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Target
ac450bd1a101625b820e73a90f7f2e96c7688020620167fa4ac390934f4c4abf.exe
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Size
135KB
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MD5
0afa036c60c0bcde9153256020209e4d
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SHA1
0ccaa8cc2a4f12122ae77a41e428266dc2b22910
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SHA256
ac450bd1a101625b820e73a90f7f2e96c7688020620167fa4ac390934f4c4abf
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SHA512
48c0f19a07de6f21b8572160a91a567936f994cb6b699c4555c3e730448587d8f6cd39cf9edc2ceed25304e5d763d30c1710941900a076facbfd7878ae44f261
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SSDEEP
1536:YGYU/W2/HG6QMauSV3ixJHABLrmhH7i9eNOOg00GqMIK7aGZh3SOb:YfU/WF6QMauSuiWNi9eNOl0007NZIOb
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-1-5-21-3227495264-2217614367-4027411560-1000\Control Panel\International\Geo\Nation ac450bd1a101625b820e73a90f7f2e96c7688020620167fa4ac390934f4c4abf.exe -
Executes dropped EXE 1 IoCs
pid Process 1008 wuauclt.exe -
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" ac450bd1a101625b820e73a90f7f2e96c7688020620167fa4ac390934f4c4abf.exe -
Indicator Removal: File Deletion 1 TTPs
Adversaries may delete files left behind by the actions of their intrusion activity.
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resource yara_rule behavioral2/memory/4464-0-0x0000000000A30000-0x0000000000A58000-memory.dmp upx behavioral2/files/0x000b000000023b86-3.dat upx behavioral2/memory/1008-5-0x0000000000420000-0x0000000000448000-memory.dmp upx behavioral2/memory/4464-6-0x0000000000A30000-0x0000000000A58000-memory.dmp upx behavioral2/memory/1008-7-0x0000000000420000-0x0000000000448000-memory.dmp upx behavioral2/memory/4464-8-0x0000000000A30000-0x0000000000A58000-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 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 wuauclt.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language cmd.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language ac450bd1a101625b820e73a90f7f2e96c7688020620167fa4ac390934f4c4abf.exe -
Suspicious use of WriteProcessMemory 6 IoCs
description pid Process procid_target PID 4464 wrote to memory of 1008 4464 ac450bd1a101625b820e73a90f7f2e96c7688020620167fa4ac390934f4c4abf.exe 84 PID 4464 wrote to memory of 1008 4464 ac450bd1a101625b820e73a90f7f2e96c7688020620167fa4ac390934f4c4abf.exe 84 PID 4464 wrote to memory of 1008 4464 ac450bd1a101625b820e73a90f7f2e96c7688020620167fa4ac390934f4c4abf.exe 84 PID 4464 wrote to memory of 3276 4464 ac450bd1a101625b820e73a90f7f2e96c7688020620167fa4ac390934f4c4abf.exe 97 PID 4464 wrote to memory of 3276 4464 ac450bd1a101625b820e73a90f7f2e96c7688020620167fa4ac390934f4c4abf.exe 97 PID 4464 wrote to memory of 3276 4464 ac450bd1a101625b820e73a90f7f2e96c7688020620167fa4ac390934f4c4abf.exe 97
Processes
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C:\Users\Admin\AppData\Local\Temp\ac450bd1a101625b820e73a90f7f2e96c7688020620167fa4ac390934f4c4abf.exe"C:\Users\Admin\AppData\Local\Temp\ac450bd1a101625b820e73a90f7f2e96c7688020620167fa4ac390934f4c4abf.exe"1⤵
- Checks computer location settings
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4464 -
C:\ProgramData\Update\wuauclt.exe"C:\ProgramData\Update\wuauclt.exe" /run2⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
PID:1008
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C:\windows\SysWOW64\cmd.exe"C:\windows\system32\cmd.exe" /c del /q "C:\Users\Admin\AppData\Local\Temp\ac450bd1a101625b820e73a90f7f2e96c7688020620167fa4ac390934f4c4abf.exe" >> NUL2⤵
- System Location Discovery: System Language Discovery
PID:3276
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
135KB
MD53a20c49ed4fc181b3e92dbedd6fccf8e
SHA1c0b688ea9d1fede184acaf7260fdc89f193fe04d
SHA256dab9dbcaf59774af9f1e073eb10b44a9a6ddd0c4afcdab6cb8987a097bddc42e
SHA512044d3b73023248a90f8dd82eabd6259ab4f0ed6376e98dc0906b92e4c40284a0f6eec06c5e1239aad418251738caab7995f341235f5d57b5637381bfbd27017a