Analysis
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max time kernel
99s -
max time network
101s -
platform
windows10-2004_x64 -
resource
win10v2004-20231215-en -
resource tags
arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system -
submitted
18/02/2024, 21:09
Behavioral task
behavioral1
Sample
AppPak.exe
Resource
win7-20240215-en
Behavioral task
behavioral2
Sample
AppPak.exe
Resource
win10v2004-20231215-en
General
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Target
AppPak.exe
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Size
769KB
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MD5
10573579e9705052ac61c1320ccd41bc
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SHA1
21eeff6d805ee6b646396b520833f99ad2c4e173
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SHA256
d1163922c64694075ba4c602cdfad98a01db9801fdb8ced6cd0545332fc053f0
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SHA512
e8cebfed8a56ed6c107b4af33294f6f9b3a71283e9e84097fed8e049b3c7358fd962ea5b98db45106977e2b44fb496614f198f43cdcca7cd955e94c8b4ada346
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SSDEEP
6144:iV28oxoS8O8utojssssssscB000KpQC77778s2f:ioroS8j000UQC77778t
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-1-5-21-1497073144-2389943819-3385106915-1000\Control Panel\International\Geo\Nation AppPak.exe -
resource yara_rule behavioral2/memory/400-0-0x0000000000400000-0x0000000000588000-memory.dmp upx behavioral2/memory/400-3-0x0000000000400000-0x0000000000588000-memory.dmp upx -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Suspicious use of WriteProcessMemory 2 IoCs
description pid Process procid_target PID 400 wrote to memory of 5040 400 AppPak.exe 85 PID 400 wrote to memory of 5040 400 AppPak.exe 85
Processes
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C:\Users\Admin\AppData\Local\Temp\AppPak.exe"C:\Users\Admin\AppData\Local\Temp\AppPak.exe"1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:400 -
C:\Windows\system32\cmd.exe"C:\Windows\sysnative\cmd.exe" /c "C:\Users\Admin\AppData\Local\Temp\4006.tmp\4007.tmp\4008.bat C:\Users\Admin\AppData\Local\Temp\AppPak.exe"2⤵PID:5040
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
45B
MD52bcda5dbea7aae4c89d3cbef2af06f45
SHA11a4572815622b6a981344026483fb7a209e1296e
SHA2564a955c6f7f8ba8490f784b82c81d1fe92e89cede3fb927c04b6cf4f4ff71392b
SHA5122b7ba426440e63a41ba075d5a9fa23a42d56437524137056e47fc02226ba36e301be114cf65e26a2aaa43a3385e267c10227b817fe938066e6ccb9769e4de5bc