Analysis
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max time kernel
120s -
max time network
118s -
platform
windows7_x64 -
resource
win7-20240729-en -
resource tags
arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system -
submitted
02-01-2025 06:31
Behavioral task
behavioral1
Sample
1f895c6c7ec19962e905f2e46c2f741761bbc4c15597ebf8b503dbebeefee11fN.exe
Resource
win7-20240729-en
Behavioral task
behavioral2
Sample
1f895c6c7ec19962e905f2e46c2f741761bbc4c15597ebf8b503dbebeefee11fN.exe
Resource
win10v2004-20241007-en
General
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Target
1f895c6c7ec19962e905f2e46c2f741761bbc4c15597ebf8b503dbebeefee11fN.exe
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Size
29KB
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MD5
a913d24c6c004884a1c5a017c78eb660
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SHA1
dbbc74a4390b1097691e2580c712bd41ef1cdaa5
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SHA256
1f895c6c7ec19962e905f2e46c2f741761bbc4c15597ebf8b503dbebeefee11f
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SHA512
b3a79a77baaae17ba394bdebdbbbd4543bde744bfb6c3acdd1dd759f0c562507ca1259971ac937e33c6a91b09c270d9b449cb94d4ad7156724722c82dd410e51
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SSDEEP
768:AEwHupU99d2JE0jNJJ83+8zzqgTdVY9/P:AEwVs+0jNDY1qi/q3
Malware Config
Signatures
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Detects MyDoom family 3 IoCs
resource yara_rule behavioral1/memory/2020-17-0x0000000000500000-0x0000000000510200-memory.dmp family_mydoom behavioral1/memory/2020-56-0x0000000000500000-0x0000000000510200-memory.dmp family_mydoom behavioral1/memory/2020-81-0x0000000000500000-0x0000000000510200-memory.dmp family_mydoom -
Mydoom family
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Executes dropped EXE 1 IoCs
pid Process 1956 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" 1f895c6c7ec19962e905f2e46c2f741761bbc4c15597ebf8b503dbebeefee11fN.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\Services = "C:\\Windows\\services.exe" services.exe -
resource yara_rule behavioral1/memory/2020-0-0x0000000000500000-0x0000000000510200-memory.dmp upx behavioral1/memory/2020-4-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral1/files/0x00060000000193b5-7.dat upx behavioral1/memory/1956-11-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral1/memory/2020-17-0x0000000000500000-0x0000000000510200-memory.dmp upx behavioral1/memory/1956-21-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral1/memory/1956-20-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral1/memory/1956-26-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral1/memory/1956-31-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral1/memory/1956-33-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral1/memory/1956-38-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral1/memory/1956-43-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral1/memory/1956-45-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral1/memory/1956-50-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral1/memory/1956-55-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral1/memory/2020-56-0x0000000000500000-0x0000000000510200-memory.dmp upx behavioral1/memory/1956-57-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral1/files/0x000900000001933b-73.dat upx behavioral1/memory/2020-81-0x0000000000500000-0x0000000000510200-memory.dmp upx behavioral1/memory/1956-82-0x0000000000400000-0x0000000000408000-memory.dmp upx -
Drops file in Windows directory 3 IoCs
description ioc Process File created C:\Windows\services.exe 1f895c6c7ec19962e905f2e46c2f741761bbc4c15597ebf8b503dbebeefee11fN.exe File opened for modification C:\Windows\java.exe 1f895c6c7ec19962e905f2e46c2f741761bbc4c15597ebf8b503dbebeefee11fN.exe File created C:\Windows\java.exe 1f895c6c7ec19962e905f2e46c2f741761bbc4c15597ebf8b503dbebeefee11fN.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 1f895c6c7ec19962e905f2e46c2f741761bbc4c15597ebf8b503dbebeefee11fN.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language services.exe -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 2020 wrote to memory of 1956 2020 1f895c6c7ec19962e905f2e46c2f741761bbc4c15597ebf8b503dbebeefee11fN.exe 30 PID 2020 wrote to memory of 1956 2020 1f895c6c7ec19962e905f2e46c2f741761bbc4c15597ebf8b503dbebeefee11fN.exe 30 PID 2020 wrote to memory of 1956 2020 1f895c6c7ec19962e905f2e46c2f741761bbc4c15597ebf8b503dbebeefee11fN.exe 30 PID 2020 wrote to memory of 1956 2020 1f895c6c7ec19962e905f2e46c2f741761bbc4c15597ebf8b503dbebeefee11fN.exe 30
Processes
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C:\Users\Admin\AppData\Local\Temp\1f895c6c7ec19962e905f2e46c2f741761bbc4c15597ebf8b503dbebeefee11fN.exe"C:\Users\Admin\AppData\Local\Temp\1f895c6c7ec19962e905f2e46c2f741761bbc4c15597ebf8b503dbebeefee11fN.exe"1⤵
- Adds Run key to start application
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2020 -
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:1956
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
29KB
MD56c57f1bb77f1d5f521ce443b0a5020b6
SHA1584ab8693b9d9851abe3d96e49354fb4794e910b
SHA2560cadc3c964c5a8debcfbde5afc6fe04007e7fa95fc8dbcb7ea738b700f848d0d
SHA512874930994bc6d714d2050b57033eafc8f65d9d68eb090fc5a59266875d5c7b9283d12343d602ea176b0617d88d43a26b9927ea87e2f82aa3e90e790593d03687
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Filesize
320B
MD58b9478081f9eb6614fc9aa75c80e547e
SHA14ffa021d2e0c7a5157e75f975f5eab1901b8aecf
SHA256c282d57de4edb1f1e4edf3c7ef0b8ce123cc69ad10e933ee87ab5bd295ac8392
SHA5123728a227a432ac8d072f2cb63216b924d136909a71ee2c55a1746f467c44b3f6173f13eacd50e0462f3757a7b55abbecdf89ef42ae6e92a34204457308fd7009
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Filesize
8KB
MD5b0fe74719b1b647e2056641931907f4a
SHA1e858c206d2d1542a79936cb00d85da853bfc95e2
SHA256bf316f51d0c345d61eaee3940791b64e81f676e3bca42bad61073227bee6653c
SHA5129c82e88264696d0dadef9c0442ad8d1183e48f0fb355a4fc9bf4fa5db4e27745039f98b1fd1febff620a5ded6dd493227f00d7d2e74b19757685aa8655f921c2