Analysis
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max time kernel
120s -
max time network
114s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system -
submitted
25-12-2024 20:07
Behavioral task
behavioral1
Sample
a8a5d228bd2348fc248ade341052abc31c81615b0d6f898e5e8b7aefcc8683b2.exe
Resource
win7-20240729-en
Behavioral task
behavioral2
Sample
a8a5d228bd2348fc248ade341052abc31c81615b0d6f898e5e8b7aefcc8683b2.exe
Resource
win10v2004-20241007-en
General
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Target
a8a5d228bd2348fc248ade341052abc31c81615b0d6f898e5e8b7aefcc8683b2.exe
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Size
29KB
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MD5
fa9386a0512bd533101190c05a41cc6d
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SHA1
45a5ed82ca5b3241a8659f25ea1e4e347d3dd820
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SHA256
a8a5d228bd2348fc248ade341052abc31c81615b0d6f898e5e8b7aefcc8683b2
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SHA512
a7ca658f898c442880718af6be4b8838b9e6ad2aa3296999ef4714e7dd6d87e28901217a07103e7bfcda47fe0c529593dde41ce35e79dc7b613227713fd81b80
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SSDEEP
768:AEwHupU99d2JE0jNJJ83+8zzqgTdVY9/MhF:AEwVs+0jNDY1qi/qkf
Malware Config
Signatures
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Detects MyDoom family 2 IoCs
resource yara_rule behavioral2/memory/3256-13-0x0000000000500000-0x0000000000510200-memory.dmp family_mydoom behavioral2/memory/3256-56-0x0000000000500000-0x0000000000510200-memory.dmp family_mydoom -
Mydoom family
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Executes dropped EXE 1 IoCs
pid Process 1056 services.exe -
Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\JavaVM = "C:\\Windows\\java.exe" a8a5d228bd2348fc248ade341052abc31c81615b0d6f898e5e8b7aefcc8683b2.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\Services = "C:\\Windows\\services.exe" services.exe -
resource yara_rule behavioral2/memory/3256-0-0x0000000000500000-0x0000000000510200-memory.dmp upx behavioral2/files/0x0008000000023c9c-4.dat upx behavioral2/memory/1056-5-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral2/memory/3256-13-0x0000000000500000-0x0000000000510200-memory.dmp upx behavioral2/memory/1056-15-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral2/memory/1056-16-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral2/memory/1056-21-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral2/memory/1056-26-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral2/memory/1056-28-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral2/memory/1056-33-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral2/memory/1056-38-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral2/memory/1056-40-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral2/memory/1056-45-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral2/memory/1056-50-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral2/memory/1056-52-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral2/memory/3256-56-0x0000000000500000-0x0000000000510200-memory.dmp upx behavioral2/memory/1056-57-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral2/files/0x0003000000000705-62.dat upx -
Drops file in Windows directory 3 IoCs
description ioc Process File created C:\Windows\services.exe a8a5d228bd2348fc248ade341052abc31c81615b0d6f898e5e8b7aefcc8683b2.exe File opened for modification C:\Windows\java.exe a8a5d228bd2348fc248ade341052abc31c81615b0d6f898e5e8b7aefcc8683b2.exe File created C:\Windows\java.exe a8a5d228bd2348fc248ade341052abc31c81615b0d6f898e5e8b7aefcc8683b2.exe -
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 a8a5d228bd2348fc248ade341052abc31c81615b0d6f898e5e8b7aefcc8683b2.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language services.exe -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 3256 wrote to memory of 1056 3256 a8a5d228bd2348fc248ade341052abc31c81615b0d6f898e5e8b7aefcc8683b2.exe 82 PID 3256 wrote to memory of 1056 3256 a8a5d228bd2348fc248ade341052abc31c81615b0d6f898e5e8b7aefcc8683b2.exe 82 PID 3256 wrote to memory of 1056 3256 a8a5d228bd2348fc248ade341052abc31c81615b0d6f898e5e8b7aefcc8683b2.exe 82
Processes
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C:\Users\Admin\AppData\Local\Temp\a8a5d228bd2348fc248ade341052abc31c81615b0d6f898e5e8b7aefcc8683b2.exe"C:\Users\Admin\AppData\Local\Temp\a8a5d228bd2348fc248ade341052abc31c81615b0d6f898e5e8b7aefcc8683b2.exe"1⤵
- Adds Run key to start application
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3256 -
C:\Windows\services.exe"C:\Windows\services.exe"2⤵
- Executes dropped EXE
- Adds Run key to start application
- System Location Discovery: System Language Discovery
PID:1056
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
29KB
MD5f113da5b37465281e9fa2ff3359884c7
SHA1b657de777acd727f2e651837bddac9b4e72264be
SHA25687a3ab53b15e4035fd533581f71d106b5f74d0894fa569f1ea584ae2c26e48c9
SHA5126137ed78176af36cb3d1410fefa6749ac63e94bfc212486cdc3ee6e61191763ff490538c77547c56ec953a63d2f31e965bfb89e7bb6334b572e1fc3dfdb1abab
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Filesize
320B
MD587bf582336c48d4d84377bf37eb28042
SHA1f70e3d55d3197ef6e9878dbee80f67b3f99b4490
SHA256faea0b04cb3fdfc8c1d670bcca9b128549220d8566737e83fbec063aa7dd5060
SHA512dc4755a9e2f9f86c5d252c49e65743aaca0c89fcdb3828e31f5ee71235b2dc2ddd613d174d2363dbe0cbb14e80b272eb1c5310fcae8cefa7200d7f30aaadccd0
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Filesize
8KB
MD5b0fe74719b1b647e2056641931907f4a
SHA1e858c206d2d1542a79936cb00d85da853bfc95e2
SHA256bf316f51d0c345d61eaee3940791b64e81f676e3bca42bad61073227bee6653c
SHA5129c82e88264696d0dadef9c0442ad8d1183e48f0fb355a4fc9bf4fa5db4e27745039f98b1fd1febff620a5ded6dd493227f00d7d2e74b19757685aa8655f921c2