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Analysis
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max time kernel
119s -
max time network
121s -
platform
windows10-2004_x64 -
resource
win10v2004-20240802-en -
resource tags
arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system -
submitted
14/09/2024, 15:49
Behavioral task
behavioral1
Sample
f09d0363bac4fde14dfff1e4fbd85350N.exe
Resource
win7-20240708-en
Behavioral task
behavioral2
Sample
f09d0363bac4fde14dfff1e4fbd85350N.exe
Resource
win10v2004-20240802-en
General
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Target
f09d0363bac4fde14dfff1e4fbd85350N.exe
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Size
59KB
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MD5
f09d0363bac4fde14dfff1e4fbd85350
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SHA1
dac38a393bedf05506c1895041c58a6ea2f4f425
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SHA256
e0d7fd07b3d410d7fff1645261e9ffef1959b783db1f71b20e4b80d9b81b05a8
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SHA512
295668d8270f09486aacf43e21cb430ced21ca01d9160bcf50580cef6f706e2b0210fa454dd05ca2a43321e8a1766fac8b8f96391239fc6feae0abe5c45d78aa
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SSDEEP
1536:3+ZgwRdiE8cO4p1xRjfTvSq5r3ZiIZ4nouy8uh1aQj:OeodiUO4p13b9HiIeoutuh1aQj
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-1-5-21-2718105630-359604950-2820636825-1000\Control Panel\International\Geo\Nation f09d0363bac4fde14dfff1e4fbd85350N.exe -
Executes dropped EXE 1 IoCs
pid Process 2360 AhnSvc.exe -
resource yara_rule behavioral2/memory/1360-0-0x00000000008E0000-0x0000000000907000-memory.dmp upx behavioral2/memory/2360-4-0x0000000000BB0000-0x0000000000BD7000-memory.dmp upx behavioral2/files/0x00080000000234a0-3.dat upx behavioral2/memory/1360-8-0x00000000008E0000-0x0000000000907000-memory.dmp upx behavioral2/memory/2360-9-0x0000000000BB0000-0x0000000000BD7000-memory.dmp upx behavioral2/memory/2360-10-0x0000000000BB0000-0x0000000000BD7000-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\AhnUpadate = "\"C:\\ProgramData\\AhnLab\\AhnSvc.exe\" /run" f09d0363bac4fde14dfff1e4fbd85350N.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 f09d0363bac4fde14dfff1e4fbd85350N.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language AhnSvc.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language cmd.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeDebugPrivilege 1360 f09d0363bac4fde14dfff1e4fbd85350N.exe Token: SeDebugPrivilege 2360 AhnSvc.exe -
Suspicious use of WriteProcessMemory 6 IoCs
description pid Process procid_target PID 1360 wrote to memory of 2360 1360 f09d0363bac4fde14dfff1e4fbd85350N.exe 83 PID 1360 wrote to memory of 2360 1360 f09d0363bac4fde14dfff1e4fbd85350N.exe 83 PID 1360 wrote to memory of 2360 1360 f09d0363bac4fde14dfff1e4fbd85350N.exe 83 PID 1360 wrote to memory of 3856 1360 f09d0363bac4fde14dfff1e4fbd85350N.exe 85 PID 1360 wrote to memory of 3856 1360 f09d0363bac4fde14dfff1e4fbd85350N.exe 85 PID 1360 wrote to memory of 3856 1360 f09d0363bac4fde14dfff1e4fbd85350N.exe 85
Processes
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C:\Users\Admin\AppData\Local\Temp\f09d0363bac4fde14dfff1e4fbd85350N.exe"C:\Users\Admin\AppData\Local\Temp\f09d0363bac4fde14dfff1e4fbd85350N.exe"1⤵
- Checks computer location settings
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1360 -
C:\ProgramData\AhnLab\AhnSvc.exe"C:\ProgramData\AhnLab\AhnSvc.exe" /run2⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
PID:2360
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C:\Windows\SysWOW64\cmd.exe"C:\Windows\system32\cmd.exe" /c del /q "C:\Users\Admin\AppData\Local\Temp\f09d0363bac4fde14dfff1e4fbd85350N.exe" >> NUL2⤵
- System Location Discovery: System Language Discovery
PID:3856
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
59KB
MD53889124804cd3ffc3c882650859cfa05
SHA133e7b9de704b6a6d482420cbffc0aa35b86f74d9
SHA2567e24a66a2eca085db581259c6ccfb7448cd898cc36a0f26df6269d03e29b4576
SHA51212b0d80c8907349073577d4172833d16fe94f5b4925f518ea3291787e351dde269e915379a1288232d3460cb420cbbb54977a4f0628435cce8cd60b7c614d58a