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Analysis
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max time kernel
120s -
max time network
119s -
platform
windows7_x64 -
resource
win7-20240903-en -
resource tags
arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system -
submitted
13/01/2025, 11:07
Behavioral task
behavioral1
Sample
f8b378cb4407af82ff26545edc658f1a2cf93bf0489ab8c3441c35a3e5095ea9N.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
f8b378cb4407af82ff26545edc658f1a2cf93bf0489ab8c3441c35a3e5095ea9N.exe
Resource
win10v2004-20241007-en
General
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Target
f8b378cb4407af82ff26545edc658f1a2cf93bf0489ab8c3441c35a3e5095ea9N.exe
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Size
29KB
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MD5
dbf9acf49c4b50d80fb5c36064fadab0
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SHA1
c85f97d4c3d8d534dc4a43acb459513734798b33
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SHA256
f8b378cb4407af82ff26545edc658f1a2cf93bf0489ab8c3441c35a3e5095ea9
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SHA512
90c3e54e2efd7dc34f1c850ad57fe30d31233856cdc921cca32d67d4d0d9e626d8817605336806de8b475338b4f02d546618ac8589306813a3dbaed136506673
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SSDEEP
768:AEwHupU99d2JE0jNJJ83+8zzqgTdVY9/l:AEwVs+0jNDY1qi/qd
Malware Config
Signatures
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Detects MyDoom family 7 IoCs
resource yara_rule behavioral1/memory/2032-17-0x0000000000500000-0x0000000000510200-memory.dmp family_mydoom behavioral1/memory/2032-43-0x0000000000500000-0x0000000000510200-memory.dmp family_mydoom behavioral1/memory/2032-45-0x0000000000500000-0x0000000000510200-memory.dmp family_mydoom behavioral1/memory/2032-66-0x0000000000500000-0x0000000000510200-memory.dmp family_mydoom behavioral1/memory/2032-71-0x0000000000500000-0x0000000000510200-memory.dmp family_mydoom behavioral1/memory/2032-73-0x0000000000500000-0x0000000000510200-memory.dmp family_mydoom behavioral1/memory/2032-78-0x0000000000500000-0x0000000000510200-memory.dmp family_mydoom -
Mydoom family
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Executes dropped EXE 1 IoCs
pid Process 2176 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" f8b378cb4407af82ff26545edc658f1a2cf93bf0489ab8c3441c35a3e5095ea9N.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\Services = "C:\\Windows\\services.exe" services.exe -
resource yara_rule behavioral1/memory/2032-0-0x0000000000500000-0x0000000000510200-memory.dmp upx behavioral1/memory/2176-11-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral1/files/0x0007000000016a47-8.dat upx behavioral1/memory/2032-17-0x0000000000500000-0x0000000000510200-memory.dmp upx behavioral1/memory/2032-18-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral1/memory/2176-20-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral1/memory/2176-22-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral1/memory/2176-27-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral1/memory/2176-32-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral1/memory/2176-34-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral1/memory/2176-39-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral1/memory/2032-43-0x0000000000500000-0x0000000000510200-memory.dmp upx behavioral1/memory/2176-44-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral1/memory/2032-45-0x0000000000500000-0x0000000000510200-memory.dmp upx behavioral1/memory/2176-46-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral1/files/0x0005000000004ed7-56.dat upx behavioral1/memory/2032-66-0x0000000000500000-0x0000000000510200-memory.dmp upx behavioral1/memory/2176-67-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral1/memory/2032-71-0x0000000000500000-0x0000000000510200-memory.dmp upx behavioral1/memory/2176-72-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral1/memory/2032-73-0x0000000000500000-0x0000000000510200-memory.dmp upx behavioral1/memory/2176-74-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral1/memory/2176-79-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral1/memory/2032-78-0x0000000000500000-0x0000000000510200-memory.dmp upx -
Drops file in Windows directory 3 IoCs
description ioc Process File created C:\Windows\services.exe f8b378cb4407af82ff26545edc658f1a2cf93bf0489ab8c3441c35a3e5095ea9N.exe File opened for modification C:\Windows\java.exe f8b378cb4407af82ff26545edc658f1a2cf93bf0489ab8c3441c35a3e5095ea9N.exe File created C:\Windows\java.exe f8b378cb4407af82ff26545edc658f1a2cf93bf0489ab8c3441c35a3e5095ea9N.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 f8b378cb4407af82ff26545edc658f1a2cf93bf0489ab8c3441c35a3e5095ea9N.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language services.exe -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 2032 wrote to memory of 2176 2032 f8b378cb4407af82ff26545edc658f1a2cf93bf0489ab8c3441c35a3e5095ea9N.exe 31 PID 2032 wrote to memory of 2176 2032 f8b378cb4407af82ff26545edc658f1a2cf93bf0489ab8c3441c35a3e5095ea9N.exe 31 PID 2032 wrote to memory of 2176 2032 f8b378cb4407af82ff26545edc658f1a2cf93bf0489ab8c3441c35a3e5095ea9N.exe 31 PID 2032 wrote to memory of 2176 2032 f8b378cb4407af82ff26545edc658f1a2cf93bf0489ab8c3441c35a3e5095ea9N.exe 31
Processes
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C:\Users\Admin\AppData\Local\Temp\f8b378cb4407af82ff26545edc658f1a2cf93bf0489ab8c3441c35a3e5095ea9N.exe"C:\Users\Admin\AppData\Local\Temp\f8b378cb4407af82ff26545edc658f1a2cf93bf0489ab8c3441c35a3e5095ea9N.exe"1⤵
- Adds Run key to start application
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2032 -
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:2176
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
29KB
MD5b8258362d0d5d08860c4a42cc17544b1
SHA10574f79cf345cced1d410b03d4baf1950d35a546
SHA256e97e0f3172b9e5b9c35f2a2358290e6d46a222fa6aeebea313c7fbb712cdb9ad
SHA5127c0e998b66688ff3a4d55edd5044bd8ae8f00a9c32ce750133a821bfdbae1b86cdde915ec81f1b4754d869ff82769f175e889f4a804a7001b5cddae75e2ad9a0
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Filesize
352B
MD556789d32fa9a376501008cbe66354422
SHA11cf57543493a1e5df2fcb4e5d5a63d66bc98db41
SHA2562bb1419cbf2e574749e46aa10f88b18c7bd38d81a7971d1a3e6b925c6dfbf135
SHA5126406bd1ab2c5a2cf192daa22ab946f7e6c3fbc6734c65575e8d8fc41666682b6558369dfa5d4907a13b4e9aa8adba07e7d02f81553bf868b3806de70b45e1150
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Filesize
8KB
MD5b0fe74719b1b647e2056641931907f4a
SHA1e858c206d2d1542a79936cb00d85da853bfc95e2
SHA256bf316f51d0c345d61eaee3940791b64e81f676e3bca42bad61073227bee6653c
SHA5129c82e88264696d0dadef9c0442ad8d1183e48f0fb355a4fc9bf4fa5db4e27745039f98b1fd1febff620a5ded6dd493227f00d7d2e74b19757685aa8655f921c2