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Analysis
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max time kernel
149s -
max time network
50s -
platform
windows10-2004_x64 -
resource
win10v2004-20240508-en -
resource tags
arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system -
submitted
01/07/2024, 04:24
Behavioral task
behavioral1
Sample
ef2229a6d82c9d91d1b92a5a91c5a0fc5a9e1ea89cc6ceb3d6c28657a7503579.exe
Resource
win7-20240508-en
Behavioral task
behavioral2
Sample
ef2229a6d82c9d91d1b92a5a91c5a0fc5a9e1ea89cc6ceb3d6c28657a7503579.exe
Resource
win10v2004-20240508-en
General
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Target
ef2229a6d82c9d91d1b92a5a91c5a0fc5a9e1ea89cc6ceb3d6c28657a7503579.exe
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Size
24KB
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MD5
54f95fe164b62f4f46f8548c557f4005
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SHA1
f3a1ed8d1562a73943249eabf1a61912cb7db577
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SHA256
ef2229a6d82c9d91d1b92a5a91c5a0fc5a9e1ea89cc6ceb3d6c28657a7503579
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SHA512
b85fac0c32884cbb025d14b071ab9fd1f92723da47504554e0cfcd0273306ff6ff04478212dfd71bb3c18c1945d6dea3b3de084f9ade5cc3b0d597664fcd7c3a
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SSDEEP
384:UATttSPw84JRFnYJz7sto9KJzq98kENZ7wCMoYUgY:BEw84DJ3om298ECMoBgY
Malware Config
Signatures
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UPX dump on OEP (original entry point) 5 IoCs
resource yara_rule behavioral2/memory/3272-0-0x0000000000400000-0x000000000040D000-memory.dmp UPX behavioral2/files/0x0008000000023423-7.dat UPX behavioral2/memory/3272-14-0x0000000000400000-0x000000000040D000-memory.dmp UPX behavioral2/memory/1148-15-0x0000000000400000-0x000000000040D000-memory.dmp UPX behavioral2/memory/1148-16-0x0000000000400000-0x000000000040D000-memory.dmp UPX -
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-1-5-21-1337824034-2731376981-3755436523-1000\Control Panel\International\Geo\Nation ef2229a6d82c9d91d1b92a5a91c5a0fc5a9e1ea89cc6ceb3d6c28657a7503579.exe -
Executes dropped EXE 1 IoCs
pid Process 1148 zmnzx.exe -
resource yara_rule behavioral2/memory/3272-0-0x0000000000400000-0x000000000040D000-memory.dmp upx behavioral2/files/0x0008000000023423-7.dat upx behavioral2/memory/3272-14-0x0000000000400000-0x000000000040D000-memory.dmp upx behavioral2/memory/1148-15-0x0000000000400000-0x000000000040D000-memory.dmp upx behavioral2/memory/1148-16-0x0000000000400000-0x000000000040D000-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 3 IoCs
description pid Process procid_target PID 3272 wrote to memory of 1148 3272 ef2229a6d82c9d91d1b92a5a91c5a0fc5a9e1ea89cc6ceb3d6c28657a7503579.exe 81 PID 3272 wrote to memory of 1148 3272 ef2229a6d82c9d91d1b92a5a91c5a0fc5a9e1ea89cc6ceb3d6c28657a7503579.exe 81 PID 3272 wrote to memory of 1148 3272 ef2229a6d82c9d91d1b92a5a91c5a0fc5a9e1ea89cc6ceb3d6c28657a7503579.exe 81
Processes
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C:\Users\Admin\AppData\Local\Temp\ef2229a6d82c9d91d1b92a5a91c5a0fc5a9e1ea89cc6ceb3d6c28657a7503579.exe"C:\Users\Admin\AppData\Local\Temp\ef2229a6d82c9d91d1b92a5a91c5a0fc5a9e1ea89cc6ceb3d6c28657a7503579.exe"1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3272 -
C:\Users\Admin\AppData\Local\Temp\zmnzx.exe"C:\Users\Admin\AppData\Local\Temp\zmnzx.exe"2⤵
- Executes dropped EXE
PID:1148
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
24KB
MD51f841943416931ada85c5635f1371fd2
SHA1b086a5aca315aa151a4e8a422a118fc501f7981a
SHA2568cc7a690fce7363feb6de51234b4b455920cce40ca4d0bba3cc226f4bf013cde
SHA512a70ca7668638b90199df332a6023bb73470628366604499236bbebe639bb8d8c3a32857ee83399cdcbde46f31d05445def10b7e9ea9304a2bc10a2a3830f8254