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
08-01-2025 09:12
Behavioral task
behavioral1
Sample
38b19124183b59d096a4b8ff95177201a8e9c9b0eab7bf9e99bb6de23e8cb675N.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
38b19124183b59d096a4b8ff95177201a8e9c9b0eab7bf9e99bb6de23e8cb675N.exe
Resource
win10v2004-20241007-en
General
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Target
38b19124183b59d096a4b8ff95177201a8e9c9b0eab7bf9e99bb6de23e8cb675N.exe
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Size
29KB
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MD5
c821fa786a35caf9c337641b56777b30
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SHA1
1a70da349fd86ba3e5418e5f93b883ee6f963684
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SHA256
38b19124183b59d096a4b8ff95177201a8e9c9b0eab7bf9e99bb6de23e8cb675
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SHA512
917dd80c99be5a93d17bfe3f8e2904b8934bfd56e76d68bc45ead1b607ea83aac0920533d9acfb22d7f302f0e744e3a85b3a91c7f50a4fcb14d643b8e419519e
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SSDEEP
768:AEwHupU99d2JE0jNJJ83+8zzqgTdVY9/WS:AEwVs+0jNDY1qi/qh
Malware Config
Signatures
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Detects MyDoom family 3 IoCs
resource yara_rule behavioral2/memory/2792-13-0x0000000000500000-0x0000000000510200-memory.dmp family_mydoom behavioral2/memory/2792-51-0x0000000000500000-0x0000000000510200-memory.dmp family_mydoom behavioral2/memory/2792-121-0x0000000000500000-0x0000000000510200-memory.dmp family_mydoom -
Mydoom family
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Executes dropped EXE 1 IoCs
pid Process 3388 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\Services = "C:\\Windows\\services.exe" services.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\JavaVM = "C:\\Windows\\java.exe" 38b19124183b59d096a4b8ff95177201a8e9c9b0eab7bf9e99bb6de23e8cb675N.exe -
resource yara_rule behavioral2/memory/2792-0-0x0000000000500000-0x0000000000510200-memory.dmp upx behavioral2/files/0x000b000000023b77-4.dat upx behavioral2/memory/3388-6-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral2/memory/2792-13-0x0000000000500000-0x0000000000510200-memory.dmp upx behavioral2/memory/3388-15-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral2/memory/3388-16-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral2/memory/3388-21-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral2/memory/3388-26-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral2/memory/3388-28-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral2/memory/3388-33-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral2/memory/3388-38-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral2/memory/3388-40-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral2/memory/3388-45-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral2/memory/3388-50-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral2/memory/2792-51-0x0000000000500000-0x0000000000510200-memory.dmp upx behavioral2/memory/3388-52-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral2/files/0x0005000000000709-68.dat upx behavioral2/memory/2792-121-0x0000000000500000-0x0000000000510200-memory.dmp upx behavioral2/memory/3388-122-0x0000000000400000-0x0000000000408000-memory.dmp upx -
Drops file in Windows directory 3 IoCs
description ioc Process File created C:\Windows\java.exe 38b19124183b59d096a4b8ff95177201a8e9c9b0eab7bf9e99bb6de23e8cb675N.exe File created C:\Windows\services.exe 38b19124183b59d096a4b8ff95177201a8e9c9b0eab7bf9e99bb6de23e8cb675N.exe File opened for modification C:\Windows\java.exe 38b19124183b59d096a4b8ff95177201a8e9c9b0eab7bf9e99bb6de23e8cb675N.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 38b19124183b59d096a4b8ff95177201a8e9c9b0eab7bf9e99bb6de23e8cb675N.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language services.exe -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 2792 wrote to memory of 3388 2792 38b19124183b59d096a4b8ff95177201a8e9c9b0eab7bf9e99bb6de23e8cb675N.exe 82 PID 2792 wrote to memory of 3388 2792 38b19124183b59d096a4b8ff95177201a8e9c9b0eab7bf9e99bb6de23e8cb675N.exe 82 PID 2792 wrote to memory of 3388 2792 38b19124183b59d096a4b8ff95177201a8e9c9b0eab7bf9e99bb6de23e8cb675N.exe 82
Processes
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C:\Users\Admin\AppData\Local\Temp\38b19124183b59d096a4b8ff95177201a8e9c9b0eab7bf9e99bb6de23e8cb675N.exe"C:\Users\Admin\AppData\Local\Temp\38b19124183b59d096a4b8ff95177201a8e9c9b0eab7bf9e99bb6de23e8cb675N.exe"1⤵
- Adds Run key to start application
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2792 -
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:3388
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
25B
MD58ba61a16b71609a08bfa35bc213fce49
SHA18374dddcc6b2ede14b0ea00a5870a11b57ced33f
SHA2566aa63394c1f5e705b1e89c55ff19eed71957e735c3831a845ff62f74824e13f1
SHA5125855f5b2a78877f7a27ff92eaaa900d81d02486e6e2ea81d80b6f6cf1fe254350444980017e00cdeecdd3c67b86e7acc90cd2d77f06210bdd1d7b1a71d262df1
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Filesize
29KB
MD53c84151a0a797224ca0886a0edd2d570
SHA1e6a6d7c480b8d7fb37c68f2486a1d973139e7c9e
SHA256e10737fbff57c9ddce9c15f40e688f36cd0d5101f6a81500b00a587f8e5e592a
SHA512936195c94d030b117b124c240a573c1b992bb9d092f06fb89175f5337232af240759696ce8a4c4d31d9e2d4469a4219876925362f7f93f101f444ef29fc6c71b
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Filesize
352B
MD591f1cc30d46e2bfe7721541f1021a4aa
SHA1976c5e7241767914edfd8bc01b5be999d9759087
SHA256a3c209fdc315304714c8917e7840622f987e782fb2d13f7bab5c1d1ec869a579
SHA5121fe7242089c7e24a0ad8325b06407acaa3a06226378899f5c669e2d576854617641cab44f02fcd7f25821933f3ae384e27470b24ceb2dbb8625a5a2510981c57
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Filesize
8KB
MD5b0fe74719b1b647e2056641931907f4a
SHA1e858c206d2d1542a79936cb00d85da853bfc95e2
SHA256bf316f51d0c345d61eaee3940791b64e81f676e3bca42bad61073227bee6653c
SHA5129c82e88264696d0dadef9c0442ad8d1183e48f0fb355a4fc9bf4fa5db4e27745039f98b1fd1febff620a5ded6dd493227f00d7d2e74b19757685aa8655f921c2