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Analysis
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max time kernel
149s -
max time network
154s -
platform
windows10-2004_x64 -
resource
win10v2004-20240508-en -
resource tags
arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system -
submitted
17/05/2024, 18:50
Behavioral task
behavioral1
Sample
139bd6c81f4b44793336d0af39e922b9eb9606d8c3c1f9280c121cc8aa6b6869.exe
Resource
win7-20240215-en
Behavioral task
behavioral2
Sample
139bd6c81f4b44793336d0af39e922b9eb9606d8c3c1f9280c121cc8aa6b6869.exe
Resource
win10v2004-20240508-en
General
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Target
139bd6c81f4b44793336d0af39e922b9eb9606d8c3c1f9280c121cc8aa6b6869.exe
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Size
24KB
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MD5
204df103332ed2d0268bb0010b4b271b
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SHA1
9dd397fb99be19059f10aee9b6d163273c3056a8
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SHA256
139bd6c81f4b44793336d0af39e922b9eb9606d8c3c1f9280c121cc8aa6b6869
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SHA512
a56b90089e53f4d4264a209ef08e346e0d5bdcf1b3469c308e5be1e31bc8775415ef1a5758fc9f05a8c8e4c7d0e2f9c8baa1ddc98184c1936ce10bc97793008e
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SSDEEP
384:6gvlQoGKdivmICib0666666666RJ70uIabjbt3TUAKoYQW9EsHyLGLc:x2oGKdJ5i0uIaOUYP2Cc
Malware Config
Signatures
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UPX dump on OEP (original entry point) 5 IoCs
resource yara_rule behavioral2/memory/1460-0-0x0000000000500000-0x000000000050D000-memory.dmp UPX behavioral2/files/0x0006000000023276-6.dat UPX behavioral2/memory/1460-11-0x0000000000500000-0x000000000050D000-memory.dmp UPX behavioral2/memory/1256-12-0x0000000000500000-0x000000000050D000-memory.dmp UPX behavioral2/memory/1256-13-0x0000000000500000-0x000000000050D000-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-1-5-21-3558294865-3673844354-2255444939-1000\Control Panel\International\Geo\Nation 139bd6c81f4b44793336d0af39e922b9eb9606d8c3c1f9280c121cc8aa6b6869.exe -
Executes dropped EXE 1 IoCs
pid Process 1256 codecupdate.exe -
resource yara_rule behavioral2/memory/1460-0-0x0000000000500000-0x000000000050D000-memory.dmp upx behavioral2/files/0x0006000000023276-6.dat upx behavioral2/memory/1460-11-0x0000000000500000-0x000000000050D000-memory.dmp upx behavioral2/memory/1256-12-0x0000000000500000-0x000000000050D000-memory.dmp upx behavioral2/memory/1256-13-0x0000000000500000-0x000000000050D000-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 1460 wrote to memory of 1256 1460 139bd6c81f4b44793336d0af39e922b9eb9606d8c3c1f9280c121cc8aa6b6869.exe 82 PID 1460 wrote to memory of 1256 1460 139bd6c81f4b44793336d0af39e922b9eb9606d8c3c1f9280c121cc8aa6b6869.exe 82 PID 1460 wrote to memory of 1256 1460 139bd6c81f4b44793336d0af39e922b9eb9606d8c3c1f9280c121cc8aa6b6869.exe 82
Processes
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C:\Users\Admin\AppData\Local\Temp\139bd6c81f4b44793336d0af39e922b9eb9606d8c3c1f9280c121cc8aa6b6869.exe"C:\Users\Admin\AppData\Local\Temp\139bd6c81f4b44793336d0af39e922b9eb9606d8c3c1f9280c121cc8aa6b6869.exe"1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:1460 -
C:\Users\Admin\AppData\Local\Temp\codecupdate.exe"C:\Users\Admin\AppData\Local\Temp\codecupdate.exe"2⤵
- Executes dropped EXE
PID:1256
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
24KB
MD5c2b3fd6f0ab2cd775e19d744de9392c7
SHA16346dec96eaff3c73655389094f3b21b9b500dfe
SHA256b1df916208cd96a0afc0f3cf209667ac818d6cd84080a532b728594a2a34761c
SHA512c9e62e8a24c75e22154574afc866faa222be50aa09109cf5d6ffb89906e9812193846df1335bc674176327ac023a892389268ddd991eba4403b322a241d8539d