Analysis
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max time kernel
120s -
max time network
116s -
platform
windows7_x64 -
resource
win7-20240903-en -
resource tags
arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system -
submitted
01-01-2025 15:57
Behavioral task
behavioral1
Sample
a620923b2fdbf5c0145c863acee3dfc3b525a33eec3e99c7067e4bf2e46a69a1N.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
a620923b2fdbf5c0145c863acee3dfc3b525a33eec3e99c7067e4bf2e46a69a1N.exe
Resource
win10v2004-20241007-en
General
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Target
a620923b2fdbf5c0145c863acee3dfc3b525a33eec3e99c7067e4bf2e46a69a1N.exe
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Size
29KB
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MD5
d7bc7504e5a9e5038d8c3166a81ba5c0
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SHA1
1261005a91470831c491c779ffb5419c436eb56e
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SHA256
a620923b2fdbf5c0145c863acee3dfc3b525a33eec3e99c7067e4bf2e46a69a1
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SHA512
00f714ebfbd24b38bf2d5504065f5b55557892731f369164c3cfc14d3c18f48afedd62108734c231770bb97e77ec03932af7710ee9a97cad0be29de77c3abfb0
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SSDEEP
768:AEwHupU99d2JE0jNJJ83+8zzqgTdVY9/7h3:AEwVs+0jNDY1qi/qTV
Malware Config
Signatures
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Detects MyDoom family 5 IoCs
resource yara_rule behavioral1/memory/2700-16-0x0000000000500000-0x0000000000510200-memory.dmp family_mydoom behavioral1/memory/2700-41-0x0000000000500000-0x0000000000510200-memory.dmp family_mydoom behavioral1/memory/2700-65-0x0000000000500000-0x0000000000510200-memory.dmp family_mydoom behavioral1/memory/2700-69-0x0000000000500000-0x0000000000510200-memory.dmp family_mydoom behavioral1/memory/2700-71-0x0000000000500000-0x0000000000510200-memory.dmp family_mydoom -
Mydoom family
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Executes dropped EXE 1 IoCs
pid Process 2808 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" a620923b2fdbf5c0145c863acee3dfc3b525a33eec3e99c7067e4bf2e46a69a1N.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\Services = "C:\\Windows\\services.exe" services.exe -
resource yara_rule behavioral1/memory/2700-0-0x0000000000500000-0x0000000000510200-memory.dmp upx behavioral1/memory/2700-4-0x0000000000220000-0x0000000000228000-memory.dmp upx behavioral1/files/0x0008000000015d07-8.dat upx behavioral1/memory/2808-10-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral1/memory/2700-16-0x0000000000500000-0x0000000000510200-memory.dmp upx behavioral1/memory/2808-19-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral1/memory/2808-20-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral1/memory/2808-25-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral1/memory/2808-30-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral1/memory/2808-32-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral1/memory/2808-37-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral1/memory/2700-41-0x0000000000500000-0x0000000000510200-memory.dmp upx behavioral1/memory/2808-42-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral1/memory/2808-44-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral1/files/0x0032000000015ccc-57.dat upx behavioral1/memory/2700-65-0x0000000000500000-0x0000000000510200-memory.dmp upx behavioral1/memory/2808-66-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral1/memory/2700-69-0x0000000000500000-0x0000000000510200-memory.dmp upx behavioral1/memory/2808-70-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral1/memory/2700-71-0x0000000000500000-0x0000000000510200-memory.dmp upx behavioral1/memory/2808-72-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral1/memory/2808-77-0x0000000000400000-0x0000000000408000-memory.dmp upx -
Drops file in Windows directory 3 IoCs
description ioc Process File opened for modification C:\Windows\java.exe a620923b2fdbf5c0145c863acee3dfc3b525a33eec3e99c7067e4bf2e46a69a1N.exe File created C:\Windows\java.exe a620923b2fdbf5c0145c863acee3dfc3b525a33eec3e99c7067e4bf2e46a69a1N.exe File created C:\Windows\services.exe a620923b2fdbf5c0145c863acee3dfc3b525a33eec3e99c7067e4bf2e46a69a1N.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 a620923b2fdbf5c0145c863acee3dfc3b525a33eec3e99c7067e4bf2e46a69a1N.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language services.exe -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 2700 wrote to memory of 2808 2700 a620923b2fdbf5c0145c863acee3dfc3b525a33eec3e99c7067e4bf2e46a69a1N.exe 31 PID 2700 wrote to memory of 2808 2700 a620923b2fdbf5c0145c863acee3dfc3b525a33eec3e99c7067e4bf2e46a69a1N.exe 31 PID 2700 wrote to memory of 2808 2700 a620923b2fdbf5c0145c863acee3dfc3b525a33eec3e99c7067e4bf2e46a69a1N.exe 31 PID 2700 wrote to memory of 2808 2700 a620923b2fdbf5c0145c863acee3dfc3b525a33eec3e99c7067e4bf2e46a69a1N.exe 31
Processes
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C:\Users\Admin\AppData\Local\Temp\a620923b2fdbf5c0145c863acee3dfc3b525a33eec3e99c7067e4bf2e46a69a1N.exe"C:\Users\Admin\AppData\Local\Temp\a620923b2fdbf5c0145c863acee3dfc3b525a33eec3e99c7067e4bf2e46a69a1N.exe"1⤵
- Adds Run key to start application
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2700 -
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:2808
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
29KB
MD5b06851b2f782cd33ceccf007af6ab9df
SHA17a455ddd256810d48edc4d8e5e7f2613d6f9fddd
SHA256a4015e00563007eb93205ca1e9a03cdbc5dbc9a99c9e95eb1b572c61417b2762
SHA512835009bf3bd84cdb7b8f2b11ed58c1a551137f53e57bf5f8cc2e50d9eb1ecad58f13fa313e1c96834f21754ab3435f1f0b6e4fdee542c0dc0d7b8042ca7ae593
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Filesize
320B
MD5b7d317e62ca93fa030e92a952c6ad929
SHA1f97d92f4105208fa21042c28504633c777a5a5fc
SHA25623570731baec1b2f472f74d5809f4ca1ff051263b8c130587337a14c19a7a34f
SHA512b2bc9a561c47f4e22822169b0b1a830c786e396ae7303eaef5a5cf3e0cb9cfefc4e879a9eeea9138af0f7358b273a5187779b0c323fbe6b1dc19730518290531
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Filesize
8KB
MD5b0fe74719b1b647e2056641931907f4a
SHA1e858c206d2d1542a79936cb00d85da853bfc95e2
SHA256bf316f51d0c345d61eaee3940791b64e81f676e3bca42bad61073227bee6653c
SHA5129c82e88264696d0dadef9c0442ad8d1183e48f0fb355a4fc9bf4fa5db4e27745039f98b1fd1febff620a5ded6dd493227f00d7d2e74b19757685aa8655f921c2