Analysis
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max time kernel
120s -
max time network
118s -
platform
windows7_x64 -
resource
win7-20240903-en -
resource tags
arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system -
submitted
08-01-2025 09:49
Behavioral task
behavioral1
Sample
b1f53e593f9bf27488e3d2b389475b04bab1defa076ed06a44adae42c5da4e30N.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
b1f53e593f9bf27488e3d2b389475b04bab1defa076ed06a44adae42c5da4e30N.exe
Resource
win10v2004-20241007-en
General
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Target
b1f53e593f9bf27488e3d2b389475b04bab1defa076ed06a44adae42c5da4e30N.exe
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Size
29KB
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MD5
da94c2a1f7f9ff603a490a132ea29c40
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SHA1
518325fa283bdf10aa9692c79d13346c14375c9f
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SHA256
b1f53e593f9bf27488e3d2b389475b04bab1defa076ed06a44adae42c5da4e30
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SHA512
3f7c17dada3817a953b58ae9719f9bc6f5809f23fa68a8df501a18dbfd866cd1a71b7346fdea5481f2451e48900e0756711403fda6b9b8b6875720faae38d5e2
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SSDEEP
768:AEwHupU99d2JE0jNJJ83+8zzqgTdVY9/o:AEwVs+0jNDY1qi/qA
Malware Config
Signatures
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Detects MyDoom family 6 IoCs
resource yara_rule behavioral1/memory/976-16-0x0000000000500000-0x0000000000510200-memory.dmp family_mydoom behavioral1/memory/976-31-0x0000000000500000-0x0000000000510200-memory.dmp family_mydoom behavioral1/memory/976-54-0x0000000000500000-0x0000000000510200-memory.dmp family_mydoom behavioral1/memory/976-56-0x0000000000500000-0x0000000000510200-memory.dmp family_mydoom behavioral1/memory/976-61-0x0000000000500000-0x0000000000510200-memory.dmp family_mydoom behavioral1/memory/976-68-0x0000000000500000-0x0000000000510200-memory.dmp family_mydoom -
Mydoom family
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Executes dropped EXE 1 IoCs
pid Process 3048 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" b1f53e593f9bf27488e3d2b389475b04bab1defa076ed06a44adae42c5da4e30N.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\Services = "C:\\Windows\\services.exe" services.exe -
resource yara_rule behavioral1/memory/976-0-0x0000000000500000-0x0000000000510200-memory.dmp upx behavioral1/memory/976-4-0x0000000000220000-0x0000000000228000-memory.dmp upx behavioral1/files/0x000700000001868b-7.dat upx behavioral1/memory/3048-10-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral1/memory/976-16-0x0000000000500000-0x0000000000510200-memory.dmp upx behavioral1/memory/3048-19-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral1/memory/3048-20-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral1/memory/3048-25-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral1/memory/3048-30-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral1/memory/976-31-0x0000000000500000-0x0000000000510200-memory.dmp upx behavioral1/memory/3048-32-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral1/memory/3048-37-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral1/files/0x0005000000004ed7-47.dat upx behavioral1/memory/976-54-0x0000000000500000-0x0000000000510200-memory.dmp upx behavioral1/memory/3048-55-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral1/memory/976-56-0x0000000000500000-0x0000000000510200-memory.dmp upx behavioral1/memory/3048-57-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral1/memory/3048-62-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral1/memory/976-61-0x0000000000500000-0x0000000000510200-memory.dmp upx behavioral1/memory/3048-67-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral1/memory/3048-69-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral1/memory/976-68-0x0000000000500000-0x0000000000510200-memory.dmp upx behavioral1/memory/3048-74-0x0000000000400000-0x0000000000408000-memory.dmp upx -
Drops file in Windows directory 3 IoCs
description ioc Process File created C:\Windows\java.exe b1f53e593f9bf27488e3d2b389475b04bab1defa076ed06a44adae42c5da4e30N.exe File created C:\Windows\services.exe b1f53e593f9bf27488e3d2b389475b04bab1defa076ed06a44adae42c5da4e30N.exe File opened for modification C:\Windows\java.exe b1f53e593f9bf27488e3d2b389475b04bab1defa076ed06a44adae42c5da4e30N.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 b1f53e593f9bf27488e3d2b389475b04bab1defa076ed06a44adae42c5da4e30N.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language services.exe -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 976 wrote to memory of 3048 976 b1f53e593f9bf27488e3d2b389475b04bab1defa076ed06a44adae42c5da4e30N.exe 31 PID 976 wrote to memory of 3048 976 b1f53e593f9bf27488e3d2b389475b04bab1defa076ed06a44adae42c5da4e30N.exe 31 PID 976 wrote to memory of 3048 976 b1f53e593f9bf27488e3d2b389475b04bab1defa076ed06a44adae42c5da4e30N.exe 31 PID 976 wrote to memory of 3048 976 b1f53e593f9bf27488e3d2b389475b04bab1defa076ed06a44adae42c5da4e30N.exe 31
Processes
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C:\Users\Admin\AppData\Local\Temp\b1f53e593f9bf27488e3d2b389475b04bab1defa076ed06a44adae42c5da4e30N.exe"C:\Users\Admin\AppData\Local\Temp\b1f53e593f9bf27488e3d2b389475b04bab1defa076ed06a44adae42c5da4e30N.exe"1⤵
- Adds Run key to start application
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:976 -
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:3048
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
29KB
MD59d317945f22b0c931af25799c0fb372c
SHA138d08f1846f3c31d9770e4e70d5bf6f10aa276f5
SHA2561b155edc83bfd00d53accfbda9cb7136631dd2e5bea26f04c9027aaf87a5dea6
SHA5125e96c0154e43137a7f74144d279b8ad80e88568d839b61b162f8730b81452a168ff8a1b869a63684c4af912b1d5c6f4aef968e9babc242909d5a2da220c218c3
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Filesize
384B
MD55738a09fd9d275e619c9040d147c8536
SHA1cb4da94f6a820081f9046e9677ae030f0a80a7e3
SHA2563591a8181e488e6515293ac0545db51490ecc51ea408eee4447e485fbed41ca5
SHA51232b2729018398e00a93f612c30949bb92e9a765da45f483b69f200e41ea8f02c948bbc777414613a21da2591e380e2bb009246a8a408b275c67ae54a1d805358
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Filesize
8KB
MD5b0fe74719b1b647e2056641931907f4a
SHA1e858c206d2d1542a79936cb00d85da853bfc95e2
SHA256bf316f51d0c345d61eaee3940791b64e81f676e3bca42bad61073227bee6653c
SHA5129c82e88264696d0dadef9c0442ad8d1183e48f0fb355a4fc9bf4fa5db4e27745039f98b1fd1febff620a5ded6dd493227f00d7d2e74b19757685aa8655f921c2