Analysis
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max time kernel
150s -
max time network
151s -
platform
windows7_x64 -
resource
win7-20240903-en -
resource tags
arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system -
submitted
25-12-2024 18:55
Behavioral task
behavioral1
Sample
b5a491a73cb47e0815b8843bf87a09a80538ccd0f5c946fbb7469814053877ec.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
b5a491a73cb47e0815b8843bf87a09a80538ccd0f5c946fbb7469814053877ec.exe
Resource
win10v2004-20241007-en
General
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Target
b5a491a73cb47e0815b8843bf87a09a80538ccd0f5c946fbb7469814053877ec.exe
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Size
29KB
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MD5
b50ec30a22302a4c2fa1a9ce2c21b045
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SHA1
911ab0f8f2878cf90ff5e55daa7c7bad479ee312
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SHA256
b5a491a73cb47e0815b8843bf87a09a80538ccd0f5c946fbb7469814053877ec
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SHA512
a1eeebb061d3d2e3ed6f2dd24614ba69e8d51c1eebb265b96bde19cdd0a14934c96e5206e829b4883f496aa52d5bd9e02dc2d9b4bd9f0f8a8de24eb7da12c5cf
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SSDEEP
768:AEwHupU99d2JE0jNJJ83+8zzqgTdVY9/EhZ:AEwVs+0jNDY1qi/q8D
Malware Config
Signatures
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Detects MyDoom family 5 IoCs
resource yara_rule behavioral1/memory/1632-15-0x0000000000500000-0x0000000000510200-memory.dmp family_mydoom behavioral1/memory/1632-54-0x0000000000500000-0x0000000000510200-memory.dmp family_mydoom behavioral1/memory/1632-77-0x0000000000500000-0x0000000000510200-memory.dmp family_mydoom behavioral1/memory/1632-79-0x0000000000500000-0x0000000000510200-memory.dmp family_mydoom behavioral1/memory/1632-84-0x0000000000500000-0x0000000000510200-memory.dmp family_mydoom -
Mydoom family
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Executes dropped EXE 1 IoCs
pid Process 1712 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" b5a491a73cb47e0815b8843bf87a09a80538ccd0f5c946fbb7469814053877ec.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\Services = "C:\\Windows\\services.exe" services.exe -
resource yara_rule behavioral1/memory/1632-0-0x0000000000500000-0x0000000000510200-memory.dmp upx behavioral1/memory/1632-4-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral1/files/0x0008000000016d46-7.dat upx behavioral1/memory/1632-15-0x0000000000500000-0x0000000000510200-memory.dmp upx behavioral1/memory/1712-18-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral1/memory/1712-19-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral1/memory/1712-24-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral1/memory/1712-29-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral1/memory/1712-31-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral1/memory/1712-36-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral1/memory/1712-41-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral1/memory/1712-43-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral1/memory/1712-48-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral1/memory/1712-53-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral1/memory/1632-54-0x0000000000500000-0x0000000000510200-memory.dmp upx behavioral1/memory/1712-55-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral1/memory/1712-60-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral1/files/0x0003000000013d08-65.dat upx behavioral1/memory/1632-77-0x0000000000500000-0x0000000000510200-memory.dmp upx behavioral1/memory/1712-78-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral1/memory/1712-80-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral1/memory/1632-79-0x0000000000500000-0x0000000000510200-memory.dmp upx behavioral1/memory/1712-85-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral1/memory/1632-84-0x0000000000500000-0x0000000000510200-memory.dmp upx -
Drops file in Windows directory 3 IoCs
description ioc Process File created C:\Windows\services.exe b5a491a73cb47e0815b8843bf87a09a80538ccd0f5c946fbb7469814053877ec.exe File opened for modification C:\Windows\java.exe b5a491a73cb47e0815b8843bf87a09a80538ccd0f5c946fbb7469814053877ec.exe File created C:\Windows\java.exe b5a491a73cb47e0815b8843bf87a09a80538ccd0f5c946fbb7469814053877ec.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 b5a491a73cb47e0815b8843bf87a09a80538ccd0f5c946fbb7469814053877ec.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language services.exe -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 1632 wrote to memory of 1712 1632 b5a491a73cb47e0815b8843bf87a09a80538ccd0f5c946fbb7469814053877ec.exe 31 PID 1632 wrote to memory of 1712 1632 b5a491a73cb47e0815b8843bf87a09a80538ccd0f5c946fbb7469814053877ec.exe 31 PID 1632 wrote to memory of 1712 1632 b5a491a73cb47e0815b8843bf87a09a80538ccd0f5c946fbb7469814053877ec.exe 31 PID 1632 wrote to memory of 1712 1632 b5a491a73cb47e0815b8843bf87a09a80538ccd0f5c946fbb7469814053877ec.exe 31
Processes
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C:\Users\Admin\AppData\Local\Temp\b5a491a73cb47e0815b8843bf87a09a80538ccd0f5c946fbb7469814053877ec.exe"C:\Users\Admin\AppData\Local\Temp\b5a491a73cb47e0815b8843bf87a09a80538ccd0f5c946fbb7469814053877ec.exe"1⤵
- Adds Run key to start application
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1632 -
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:1712
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
29KB
MD5bb6595f2a8a3e70837b3edd0c7dfc7a4
SHA11bbbd1be0dcc7acbe277993fad7e82b715d18d6a
SHA25612e4c4f7c329d3eed08376906e54924132d7b69baf13210f8150d943ec1356a6
SHA5125dafdeff20f67af437d09b0c3736e125df2dd50de2676cb6c468d6b828555cb311687228eb7a0fff6c5f51bcd8493847263a9bd6fdc4f158c90bfabd44440e2f
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Filesize
320B
MD5e7e9535900e4327e6c6c975dceef60fc
SHA1db0acba22213b5609e02956d1af4c89f571ce6f9
SHA256151177e2f9abefe5f05ad83415c17f1f3dad5a9480e8e49fc4e10e9bb4d3f543
SHA51280e2e9db0817764d88f5cec951901fe8cab94fded3006b659aa4d7736c2d0d70a5f45d71d385fac7d88011663c7300145ebca23a5b8d9da2dd96734db44002dc
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Filesize
8KB
MD5b0fe74719b1b647e2056641931907f4a
SHA1e858c206d2d1542a79936cb00d85da853bfc95e2
SHA256bf316f51d0c345d61eaee3940791b64e81f676e3bca42bad61073227bee6653c
SHA5129c82e88264696d0dadef9c0442ad8d1183e48f0fb355a4fc9bf4fa5db4e27745039f98b1fd1febff620a5ded6dd493227f00d7d2e74b19757685aa8655f921c2