Analysis
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max time kernel
150s -
max time network
146s -
platform
windows10-2004_x64 -
resource
win10v2004-20240802-en -
resource tags
arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system -
submitted
28-09-2024 07:35
Behavioral task
behavioral1
Sample
8a0a78df298dc039aca3ead63d2f293d980c69ba9db23d5c2f2a9b37ce33b539.exe
Resource
win7-20240708-en
Behavioral task
behavioral2
Sample
8a0a78df298dc039aca3ead63d2f293d980c69ba9db23d5c2f2a9b37ce33b539.exe
Resource
win10v2004-20240802-en
General
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Target
8a0a78df298dc039aca3ead63d2f293d980c69ba9db23d5c2f2a9b37ce33b539.exe
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Size
43KB
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MD5
2dc92821a7e65bba20622c55f5439c37
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SHA1
c8a54e8bf0b0e7ced9e93a7605d1a9875c00ac05
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SHA256
8a0a78df298dc039aca3ead63d2f293d980c69ba9db23d5c2f2a9b37ce33b539
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SHA512
68103f111040da2af8184dc2016973d21d9fcb354c392db9d0cfe60bf473b752803eefd7050d0bd53050173777a123d3fcd3f9ddda9f407731126c928ecf5ca5
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SSDEEP
384:QZycXxy0lwZmoy7Y/oewQMNxS9UatS9D9O5UE5QzwBlpJNakkjh/TzF7pWnA3grW:WplGol7cobK9TvQO+xd+L
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-1-5-21-1302416131-1437503476-2806442725-1000\Control Panel\International\Geo\Nation 8a0a78df298dc039aca3ead63d2f293d980c69ba9db23d5c2f2a9b37ce33b539.exe -
Drops startup file 2 IoCs
description ioc Process File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Windows Update.exe systemupdate.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Windows Update.exe systemupdate.exe -
Executes dropped EXE 1 IoCs
pid Process 3676 systemupdate.exe -
Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-1302416131-1437503476-2806442725-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Windows Update = "\"C:\\Users\\Admin\\AppData\\Roaming\\systemupdate.exe\" .." systemupdate.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\Windows Update = "\"C:\\Users\\Admin\\AppData\\Roaming\\systemupdate.exe\" .." systemupdate.exe -
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 8a0a78df298dc039aca3ead63d2f293d980c69ba9db23d5c2f2a9b37ce33b539.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language systemupdate.exe -
Suspicious behavior: GetForegroundWindowSpam 2 IoCs
pid Process 1452 8a0a78df298dc039aca3ead63d2f293d980c69ba9db23d5c2f2a9b37ce33b539.exe 3676 systemupdate.exe -
Suspicious use of AdjustPrivilegeToken 35 IoCs
description pid Process Token: SeDebugPrivilege 3676 systemupdate.exe Token: 33 3676 systemupdate.exe Token: SeIncBasePriorityPrivilege 3676 systemupdate.exe Token: 33 3676 systemupdate.exe Token: SeIncBasePriorityPrivilege 3676 systemupdate.exe Token: 33 3676 systemupdate.exe Token: SeIncBasePriorityPrivilege 3676 systemupdate.exe Token: 33 3676 systemupdate.exe Token: SeIncBasePriorityPrivilege 3676 systemupdate.exe Token: 33 3676 systemupdate.exe Token: SeIncBasePriorityPrivilege 3676 systemupdate.exe Token: 33 3676 systemupdate.exe Token: SeIncBasePriorityPrivilege 3676 systemupdate.exe Token: 33 3676 systemupdate.exe Token: SeIncBasePriorityPrivilege 3676 systemupdate.exe Token: 33 3676 systemupdate.exe Token: SeIncBasePriorityPrivilege 3676 systemupdate.exe Token: 33 3676 systemupdate.exe Token: SeIncBasePriorityPrivilege 3676 systemupdate.exe Token: 33 3676 systemupdate.exe Token: SeIncBasePriorityPrivilege 3676 systemupdate.exe Token: 33 3676 systemupdate.exe Token: SeIncBasePriorityPrivilege 3676 systemupdate.exe Token: 33 3676 systemupdate.exe Token: SeIncBasePriorityPrivilege 3676 systemupdate.exe Token: 33 3676 systemupdate.exe Token: SeIncBasePriorityPrivilege 3676 systemupdate.exe Token: 33 3676 systemupdate.exe Token: SeIncBasePriorityPrivilege 3676 systemupdate.exe Token: 33 3676 systemupdate.exe Token: SeIncBasePriorityPrivilege 3676 systemupdate.exe Token: 33 3676 systemupdate.exe Token: SeIncBasePriorityPrivilege 3676 systemupdate.exe Token: 33 3676 systemupdate.exe Token: SeIncBasePriorityPrivilege 3676 systemupdate.exe -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 1452 wrote to memory of 3676 1452 8a0a78df298dc039aca3ead63d2f293d980c69ba9db23d5c2f2a9b37ce33b539.exe 86 PID 1452 wrote to memory of 3676 1452 8a0a78df298dc039aca3ead63d2f293d980c69ba9db23d5c2f2a9b37ce33b539.exe 86 PID 1452 wrote to memory of 3676 1452 8a0a78df298dc039aca3ead63d2f293d980c69ba9db23d5c2f2a9b37ce33b539.exe 86
Processes
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C:\Users\Admin\AppData\Local\Temp\8a0a78df298dc039aca3ead63d2f293d980c69ba9db23d5c2f2a9b37ce33b539.exe"C:\Users\Admin\AppData\Local\Temp\8a0a78df298dc039aca3ead63d2f293d980c69ba9db23d5c2f2a9b37ce33b539.exe"1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of WriteProcessMemory
PID:1452 -
C:\Users\Admin\AppData\Roaming\systemupdate.exe"C:\Users\Admin\AppData\Roaming\systemupdate.exe"2⤵
- Drops startup file
- Executes dropped EXE
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
PID:3676
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
43KB
MD52dc92821a7e65bba20622c55f5439c37
SHA1c8a54e8bf0b0e7ced9e93a7605d1a9875c00ac05
SHA2568a0a78df298dc039aca3ead63d2f293d980c69ba9db23d5c2f2a9b37ce33b539
SHA51268103f111040da2af8184dc2016973d21d9fcb354c392db9d0cfe60bf473b752803eefd7050d0bd53050173777a123d3fcd3f9ddda9f407731126c928ecf5ca5