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
31-12-2024 01:37
Behavioral task
behavioral1
Sample
9821d80ecfa7788c5637cbec05233213811ada17b4d923a1bda3b103fcb2db91.exe
Resource
win7-20241023-en
Behavioral task
behavioral2
Sample
9821d80ecfa7788c5637cbec05233213811ada17b4d923a1bda3b103fcb2db91.exe
Resource
win10v2004-20241007-en
General
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Target
9821d80ecfa7788c5637cbec05233213811ada17b4d923a1bda3b103fcb2db91.exe
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Size
29KB
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MD5
a0a7748860a5ac9296047de8852e0135
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SHA1
3025ce00036df4b8677a2ab8099be2d5210dfccc
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SHA256
9821d80ecfa7788c5637cbec05233213811ada17b4d923a1bda3b103fcb2db91
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SHA512
9f7b952d37ad7e27f197bf193c19665516963510c1053ea69a5dacb162f8b0424ca17f3a24cb89cee93507a0f3fd8d8354a01bb6cfede7b001315efa6bde6b87
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SSDEEP
768:AEwHupU99d2JE0jNJJ83+8zzqgTdVY9/v:AEwVs+0jNDY1qi/qX
Malware Config
Signatures
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Detects MyDoom family 5 IoCs
resource yara_rule behavioral2/memory/3408-13-0x0000000000500000-0x0000000000510200-memory.dmp family_mydoom behavioral2/memory/3408-44-0x0000000000500000-0x0000000000510200-memory.dmp family_mydoom behavioral2/memory/3408-49-0x0000000000500000-0x0000000000510200-memory.dmp family_mydoom behavioral2/memory/3408-120-0x0000000000500000-0x0000000000510200-memory.dmp family_mydoom behavioral2/memory/3408-141-0x0000000000500000-0x0000000000510200-memory.dmp family_mydoom -
Mydoom family
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Executes dropped EXE 1 IoCs
pid Process 4596 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" 9821d80ecfa7788c5637cbec05233213811ada17b4d923a1bda3b103fcb2db91.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\Services = "C:\\Windows\\services.exe" services.exe -
resource yara_rule behavioral2/memory/3408-0-0x0000000000500000-0x0000000000510200-memory.dmp upx behavioral2/files/0x0008000000023c82-4.dat upx behavioral2/memory/4596-5-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral2/memory/3408-13-0x0000000000500000-0x0000000000510200-memory.dmp upx behavioral2/memory/4596-15-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral2/memory/4596-16-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral2/memory/4596-21-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral2/memory/4596-26-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral2/memory/4596-28-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral2/memory/4596-33-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral2/memory/4596-38-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral2/memory/4596-40-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral2/memory/3408-44-0x0000000000500000-0x0000000000510200-memory.dmp upx behavioral2/memory/4596-45-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral2/memory/3408-49-0x0000000000500000-0x0000000000510200-memory.dmp upx behavioral2/memory/4596-50-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral2/files/0x0003000000000707-55.dat upx behavioral2/memory/3408-120-0x0000000000500000-0x0000000000510200-memory.dmp upx behavioral2/memory/4596-121-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral2/memory/3408-141-0x0000000000500000-0x0000000000510200-memory.dmp upx behavioral2/memory/4596-142-0x0000000000400000-0x0000000000408000-memory.dmp upx -
Drops file in Windows directory 3 IoCs
description ioc Process File created C:\Windows\java.exe 9821d80ecfa7788c5637cbec05233213811ada17b4d923a1bda3b103fcb2db91.exe File created C:\Windows\services.exe 9821d80ecfa7788c5637cbec05233213811ada17b4d923a1bda3b103fcb2db91.exe File opened for modification C:\Windows\java.exe 9821d80ecfa7788c5637cbec05233213811ada17b4d923a1bda3b103fcb2db91.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 9821d80ecfa7788c5637cbec05233213811ada17b4d923a1bda3b103fcb2db91.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language services.exe -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 3408 wrote to memory of 4596 3408 9821d80ecfa7788c5637cbec05233213811ada17b4d923a1bda3b103fcb2db91.exe 83 PID 3408 wrote to memory of 4596 3408 9821d80ecfa7788c5637cbec05233213811ada17b4d923a1bda3b103fcb2db91.exe 83 PID 3408 wrote to memory of 4596 3408 9821d80ecfa7788c5637cbec05233213811ada17b4d923a1bda3b103fcb2db91.exe 83
Processes
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C:\Users\Admin\AppData\Local\Temp\9821d80ecfa7788c5637cbec05233213811ada17b4d923a1bda3b103fcb2db91.exe"C:\Users\Admin\AppData\Local\Temp\9821d80ecfa7788c5637cbec05233213811ada17b4d923a1bda3b103fcb2db91.exe"1⤵
- Adds Run key to start application
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3408 -
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:4596
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
29KB
MD5ab4f09068f303d80b4da21deb785e66c
SHA15d8707a77284e3f33a9531d8dbed215cdc3cc4a9
SHA256de00faa6f87867311d390da5389f993c85644deaf545d73159f6191ed3fc6699
SHA5126087580bfe36a9766a9a4d6db8939cb074db54f86f1b26458f4271f65ddb98be85c1d9211bf9730ad4f13bf0fe1219f0b720b9d603c3282fbc86e356b148e66f
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Filesize
320B
MD5559c3cb86e95ead9774b6d8f04400058
SHA1793510cac888ad102deb018025015c66c810a992
SHA256f9e89931f4e02f0f2164312845c8b853d5dcb173c94f169f543dadf4c4183918
SHA5129c8fef7d3fed1103e7c24a53222888b26b4a66e63523709ab10a79455c3ffb8ef9d1354ffc2cbeb82438085c5a756e286437eb17ad37ff93ffca699d3323be71
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Filesize
8KB
MD5b0fe74719b1b647e2056641931907f4a
SHA1e858c206d2d1542a79936cb00d85da853bfc95e2
SHA256bf316f51d0c345d61eaee3940791b64e81f676e3bca42bad61073227bee6653c
SHA5129c82e88264696d0dadef9c0442ad8d1183e48f0fb355a4fc9bf4fa5db4e27745039f98b1fd1febff620a5ded6dd493227f00d7d2e74b19757685aa8655f921c2