Analysis
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max time kernel
120s -
max time network
117s -
platform
windows7_x64 -
resource
win7-20240903-en -
resource tags
arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system -
submitted
03-01-2025 22:38
Behavioral task
behavioral1
Sample
404c540b6d62a3cb18d1672407e703f5cd738eb0966465376ee47a608374a4b3N.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
404c540b6d62a3cb18d1672407e703f5cd738eb0966465376ee47a608374a4b3N.exe
Resource
win10v2004-20241007-en
General
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Target
404c540b6d62a3cb18d1672407e703f5cd738eb0966465376ee47a608374a4b3N.exe
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Size
29KB
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MD5
36fad14b567a5119ff0517a52ef1f290
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SHA1
965753471ea20e7e628bce5c3541bc909f721422
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SHA256
404c540b6d62a3cb18d1672407e703f5cd738eb0966465376ee47a608374a4b3
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SHA512
1f049cc6b93aa579578cbe6be6826735f69d049bdf19bdec0af4914baeb20bf59a6005440c3d45e0137c5e54160ee9d1457e2c3e570e232bec886795ee36c567
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SSDEEP
768:AEwHupU99d2JE0jNJJ83+8zzqgTdVY9/r:AEwVs+0jNDY1qi/qj
Malware Config
Signatures
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Detects MyDoom family 8 IoCs
resource yara_rule behavioral1/memory/2736-2-0x0000000000500000-0x0000000000510200-memory.dmp family_mydoom behavioral1/memory/2736-16-0x0000000000500000-0x0000000000510200-memory.dmp family_mydoom behavioral1/memory/2736-36-0x0000000000500000-0x0000000000510200-memory.dmp family_mydoom behavioral1/memory/2736-41-0x0000000000500000-0x0000000000510200-memory.dmp family_mydoom behavioral1/memory/2736-60-0x0000000000500000-0x0000000000510200-memory.dmp family_mydoom behavioral1/memory/2736-69-0x0000000000500000-0x0000000000510200-memory.dmp family_mydoom behavioral1/memory/2736-71-0x0000000000500000-0x0000000000510200-memory.dmp family_mydoom behavioral1/memory/2736-76-0x0000000000500000-0x0000000000510200-memory.dmp family_mydoom -
Mydoom family
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Executes dropped EXE 1 IoCs
pid Process 2776 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" 404c540b6d62a3cb18d1672407e703f5cd738eb0966465376ee47a608374a4b3N.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\Services = "C:\\Windows\\services.exe" services.exe -
resource yara_rule behavioral1/memory/2736-2-0x0000000000500000-0x0000000000510200-memory.dmp upx behavioral1/memory/2736-4-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral1/files/0x000f000000015677-7.dat upx behavioral1/memory/2776-10-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral1/memory/2736-16-0x0000000000500000-0x0000000000510200-memory.dmp upx behavioral1/memory/2776-19-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral1/memory/2776-20-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral1/memory/2776-25-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral1/memory/2776-30-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral1/memory/2776-32-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral1/memory/2736-36-0x0000000000500000-0x0000000000510200-memory.dmp upx behavioral1/memory/2776-37-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral1/memory/2736-41-0x0000000000500000-0x0000000000510200-memory.dmp upx behavioral1/memory/2776-42-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral1/files/0x0003000000013d08-47.dat upx behavioral1/memory/2736-60-0x0000000000500000-0x0000000000510200-memory.dmp upx behavioral1/memory/2776-61-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral1/memory/2776-65-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral1/memory/2736-69-0x0000000000500000-0x0000000000510200-memory.dmp upx behavioral1/memory/2776-70-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral1/memory/2736-71-0x0000000000500000-0x0000000000510200-memory.dmp upx behavioral1/memory/2776-72-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral1/memory/2736-76-0x0000000000500000-0x0000000000510200-memory.dmp upx behavioral1/memory/2776-77-0x0000000000400000-0x0000000000408000-memory.dmp upx -
Drops file in Windows directory 3 IoCs
description ioc Process File created C:\Windows\services.exe 404c540b6d62a3cb18d1672407e703f5cd738eb0966465376ee47a608374a4b3N.exe File opened for modification C:\Windows\java.exe 404c540b6d62a3cb18d1672407e703f5cd738eb0966465376ee47a608374a4b3N.exe File created C:\Windows\java.exe 404c540b6d62a3cb18d1672407e703f5cd738eb0966465376ee47a608374a4b3N.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 404c540b6d62a3cb18d1672407e703f5cd738eb0966465376ee47a608374a4b3N.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language services.exe -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 2736 wrote to memory of 2776 2736 404c540b6d62a3cb18d1672407e703f5cd738eb0966465376ee47a608374a4b3N.exe 30 PID 2736 wrote to memory of 2776 2736 404c540b6d62a3cb18d1672407e703f5cd738eb0966465376ee47a608374a4b3N.exe 30 PID 2736 wrote to memory of 2776 2736 404c540b6d62a3cb18d1672407e703f5cd738eb0966465376ee47a608374a4b3N.exe 30 PID 2736 wrote to memory of 2776 2736 404c540b6d62a3cb18d1672407e703f5cd738eb0966465376ee47a608374a4b3N.exe 30
Processes
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C:\Users\Admin\AppData\Local\Temp\404c540b6d62a3cb18d1672407e703f5cd738eb0966465376ee47a608374a4b3N.exe"C:\Users\Admin\AppData\Local\Temp\404c540b6d62a3cb18d1672407e703f5cd738eb0966465376ee47a608374a4b3N.exe"1⤵
- Adds Run key to start application
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2736 -
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:2776
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
29KB
MD55da0dbabaff179c051972c55e75cac92
SHA146c42a8ef4fc13f9c25cf24063f85c6a3c84c888
SHA256ca7cfd7cc5f383d0ed18cc322aa0580b9776d2cf4f6b58b13ae0c56ee4c7f7a8
SHA51234538e0bcb924e442a3b41e9e1215d85770061d9acdfef0c2c91ec470e1ec0e7743d70a87147e8116d444728c69f172444336b120c43f14f280a9edc8fbf00ab
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Filesize
320B
MD5852240848aff4066d73bae0a45349f79
SHA1c773ae99a590b0bffb048b0588e51f39ef2e23dd
SHA256683f90039ba1e9a3a49326b00bed7bed984e2fdfdee1a30a2576db70aae18a52
SHA51280d16c9eebddd8f83cd6df4575622e82919a4f494bb2647e5c9c8bf57423857a8f87040d2a080d758e20fe524af0479d2ec29310200ffbdae8c79b3680fdc595
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Filesize
8KB
MD5b0fe74719b1b647e2056641931907f4a
SHA1e858c206d2d1542a79936cb00d85da853bfc95e2
SHA256bf316f51d0c345d61eaee3940791b64e81f676e3bca42bad61073227bee6653c
SHA5129c82e88264696d0dadef9c0442ad8d1183e48f0fb355a4fc9bf4fa5db4e27745039f98b1fd1febff620a5ded6dd493227f00d7d2e74b19757685aa8655f921c2