Analysis
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max time kernel
120s -
max time network
120s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system -
submitted
08-12-2024 01:49
Behavioral task
behavioral1
Sample
c73a90d67a653d665cbad0cd8c9796bcaad73e02e67eb339fd7257740c71654dN.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
c73a90d67a653d665cbad0cd8c9796bcaad73e02e67eb339fd7257740c71654dN.exe
Resource
win10v2004-20241007-en
General
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Target
c73a90d67a653d665cbad0cd8c9796bcaad73e02e67eb339fd7257740c71654dN.exe
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Size
29KB
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MD5
43da4ae3bae5786cf49b0f18bc5bee50
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SHA1
b460363a9315d224958fc88b55474c64671e9917
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SHA256
c73a90d67a653d665cbad0cd8c9796bcaad73e02e67eb339fd7257740c71654d
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SHA512
848aa96e501381289e2cbc169c55d3ac97773ac50a62318a7d63b00f76fd244987ea6b187e03f9baf675119dcb1074b94497f1da6b916ccb028026efe6f8ba9c
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SSDEEP
768:AEwHupU99d2JE0jNJJ83+8zzqgTdVY9/k:AEwVs+0jNDY1qi/qM
Malware Config
Signatures
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Detects MyDoom family 5 IoCs
resource yara_rule behavioral2/memory/2488-13-0x0000000000500000-0x0000000000510200-memory.dmp family_mydoom behavioral2/memory/2488-39-0x0000000000500000-0x0000000000510200-memory.dmp family_mydoom behavioral2/memory/2488-121-0x0000000000500000-0x0000000000510200-memory.dmp family_mydoom behavioral2/memory/2488-144-0x0000000000500000-0x0000000000510200-memory.dmp family_mydoom behavioral2/memory/2488-151-0x0000000000500000-0x0000000000510200-memory.dmp family_mydoom -
Mydoom family
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Executes dropped EXE 1 IoCs
pid Process 4968 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" c73a90d67a653d665cbad0cd8c9796bcaad73e02e67eb339fd7257740c71654dN.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\Services = "C:\\Windows\\services.exe" services.exe -
resource yara_rule behavioral2/memory/2488-0-0x0000000000500000-0x0000000000510200-memory.dmp upx behavioral2/memory/4968-6-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral2/files/0x000f000000023bc3-4.dat upx behavioral2/memory/2488-13-0x0000000000500000-0x0000000000510200-memory.dmp upx behavioral2/memory/4968-15-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral2/memory/4968-16-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral2/memory/4968-21-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral2/memory/4968-26-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral2/memory/4968-28-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral2/memory/4968-33-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral2/memory/4968-38-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral2/memory/2488-39-0x0000000000500000-0x0000000000510200-memory.dmp upx behavioral2/memory/4968-40-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral2/files/0x0003000000021d5e-56.dat upx behavioral2/memory/2488-121-0x0000000000500000-0x0000000000510200-memory.dmp upx behavioral2/memory/4968-122-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral2/memory/2488-144-0x0000000000500000-0x0000000000510200-memory.dmp upx behavioral2/memory/4968-145-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral2/memory/4968-147-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral2/memory/2488-151-0x0000000000500000-0x0000000000510200-memory.dmp upx behavioral2/memory/4968-152-0x0000000000400000-0x0000000000408000-memory.dmp upx -
Drops file in Windows directory 3 IoCs
description ioc Process File created C:\Windows\java.exe c73a90d67a653d665cbad0cd8c9796bcaad73e02e67eb339fd7257740c71654dN.exe File created C:\Windows\services.exe c73a90d67a653d665cbad0cd8c9796bcaad73e02e67eb339fd7257740c71654dN.exe File opened for modification C:\Windows\java.exe c73a90d67a653d665cbad0cd8c9796bcaad73e02e67eb339fd7257740c71654dN.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 c73a90d67a653d665cbad0cd8c9796bcaad73e02e67eb339fd7257740c71654dN.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language services.exe -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 2488 wrote to memory of 4968 2488 c73a90d67a653d665cbad0cd8c9796bcaad73e02e67eb339fd7257740c71654dN.exe 82 PID 2488 wrote to memory of 4968 2488 c73a90d67a653d665cbad0cd8c9796bcaad73e02e67eb339fd7257740c71654dN.exe 82 PID 2488 wrote to memory of 4968 2488 c73a90d67a653d665cbad0cd8c9796bcaad73e02e67eb339fd7257740c71654dN.exe 82
Processes
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C:\Users\Admin\AppData\Local\Temp\c73a90d67a653d665cbad0cd8c9796bcaad73e02e67eb339fd7257740c71654dN.exe"C:\Users\Admin\AppData\Local\Temp\c73a90d67a653d665cbad0cd8c9796bcaad73e02e67eb339fd7257740c71654dN.exe"1⤵
- Adds Run key to start application
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2488 -
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:4968
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
29KB
MD58b5d5fc8caf53f2b7b1271001001ff7d
SHA19d8f62565dc20280f2bfd5e11ada60881e0c37c6
SHA2567739b2fc4d4bea2a960000d814dc54e495996e6e8fd425387c11f7742c1b8e06
SHA512ac361f42f2bacdebcd4baa3b9055d3ed624abd4d906b94b61ac1d7a983affe64739f7f5ce47beef4d2d340023abf547aec739fdda1dfde6aac444dd75e19077f
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Filesize
352B
MD52179c32d876dc73a83af40edfd2864a3
SHA1f7ec3b1ddf6dab3447d3f25f87ef0cd58a3f2910
SHA25660dbf82af5bdfa26c92830735e5865d06db757a59d2ad34b4fb1d678c53abb91
SHA5126c8a5cb0276e04819c9ece12e5ac17f469020524728031311b1074a7db74be12f03c35873a5e9698660ec07265cb4de82eb36468da135da885d696cb8b37d628
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Filesize
352B
MD577f27433025ea5a84bf6b2fc6e50e318
SHA1dd14991e563bbfcb8eecd9bce897c53e1846275e
SHA256f617d14cc6ef4b91319063dac35ecfa45bf99578a68508f9808e011d4fdc601b
SHA512951b0398c89f47a988ff08ae9a776df172b752543d4c1e763df312c0f0affbcd9d438792f287ec777b3c1a3009076ffab37e247d1fbe92fd7b319567433a510f
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Filesize
8KB
MD5b0fe74719b1b647e2056641931907f4a
SHA1e858c206d2d1542a79936cb00d85da853bfc95e2
SHA256bf316f51d0c345d61eaee3940791b64e81f676e3bca42bad61073227bee6653c
SHA5129c82e88264696d0dadef9c0442ad8d1183e48f0fb355a4fc9bf4fa5db4e27745039f98b1fd1febff620a5ded6dd493227f00d7d2e74b19757685aa8655f921c2