Analysis
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max time kernel
120s -
max time network
116s -
platform
windows7_x64 -
resource
win7-20240729-en -
resource tags
arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system -
submitted
18-11-2024 01:50
Behavioral task
behavioral1
Sample
bf1c0612eb3f85af93479b0af2c4cc3b29ab403d552acec976219757ac8d5765N.exe
Resource
win7-20240729-en
Behavioral task
behavioral2
Sample
bf1c0612eb3f85af93479b0af2c4cc3b29ab403d552acec976219757ac8d5765N.exe
Resource
win10v2004-20241007-en
General
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Target
bf1c0612eb3f85af93479b0af2c4cc3b29ab403d552acec976219757ac8d5765N.exe
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Size
29KB
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MD5
706b0cfe58b9d1e1b7ac2d635cd88220
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SHA1
3b5ef7daf268b7590046b17b0908d72520811b52
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SHA256
bf1c0612eb3f85af93479b0af2c4cc3b29ab403d552acec976219757ac8d5765
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SHA512
e031d433711ca4b55ef9df7607379d9e050b5a079692bf768c39d879ddcc5c33a7d92193a22043ed758d09c50927defbb709f164a06d6f398d52e6328ee5645d
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SSDEEP
768:AEwHupU99d2JE0jNJJ83+8zzqgTdVY9/d3d:AEwVs+0jNDY1qi/q3
Malware Config
Signatures
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Detects MyDoom family 2 IoCs
Processes:
resource yara_rule behavioral1/memory/2328-17-0x0000000000500000-0x0000000000510200-memory.dmp family_mydoom behavioral1/memory/2328-62-0x0000000000500000-0x0000000000510200-memory.dmp family_mydoom -
Mydoom family
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Executes dropped EXE 1 IoCs
Processes:
services.exepid process 2556 services.exe -
Adds Run key to start application 2 TTPs 2 IoCs
Processes:
bf1c0612eb3f85af93479b0af2c4cc3b29ab403d552acec976219757ac8d5765N.exeservices.exedescription ioc process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\JavaVM = "C:\\Windows\\java.exe" bf1c0612eb3f85af93479b0af2c4cc3b29ab403d552acec976219757ac8d5765N.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\Services = "C:\\Windows\\services.exe" services.exe -
Processes:
resource yara_rule behavioral1/memory/2328-0-0x0000000000500000-0x0000000000510200-memory.dmp upx C:\Windows\services.exe upx behavioral1/memory/2556-11-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral1/memory/2328-17-0x0000000000500000-0x0000000000510200-memory.dmp upx behavioral1/memory/2328-18-0x00000000001B0000-0x00000000001B8000-memory.dmp upx behavioral1/memory/2556-20-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral1/memory/2556-22-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral1/memory/2556-27-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral1/memory/2556-32-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral1/memory/2556-34-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral1/memory/2556-39-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral1/memory/2556-44-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral1/memory/2556-46-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral1/memory/2556-51-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral1/memory/2556-56-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral1/memory/2556-58-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral1/memory/2556-63-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral1/memory/2328-62-0x0000000000500000-0x0000000000510200-memory.dmp upx -
Drops file in Windows directory 3 IoCs
Processes:
bf1c0612eb3f85af93479b0af2c4cc3b29ab403d552acec976219757ac8d5765N.exedescription ioc process File created C:\Windows\services.exe bf1c0612eb3f85af93479b0af2c4cc3b29ab403d552acec976219757ac8d5765N.exe File opened for modification C:\Windows\java.exe bf1c0612eb3f85af93479b0af2c4cc3b29ab403d552acec976219757ac8d5765N.exe File created C:\Windows\java.exe bf1c0612eb3f85af93479b0af2c4cc3b29ab403d552acec976219757ac8d5765N.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.
Processes:
bf1c0612eb3f85af93479b0af2c4cc3b29ab403d552acec976219757ac8d5765N.exeservices.exedescription ioc process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language bf1c0612eb3f85af93479b0af2c4cc3b29ab403d552acec976219757ac8d5765N.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language services.exe -
Suspicious use of WriteProcessMemory 4 IoCs
Processes:
bf1c0612eb3f85af93479b0af2c4cc3b29ab403d552acec976219757ac8d5765N.exedescription pid process target process PID 2328 wrote to memory of 2556 2328 bf1c0612eb3f85af93479b0af2c4cc3b29ab403d552acec976219757ac8d5765N.exe services.exe PID 2328 wrote to memory of 2556 2328 bf1c0612eb3f85af93479b0af2c4cc3b29ab403d552acec976219757ac8d5765N.exe services.exe PID 2328 wrote to memory of 2556 2328 bf1c0612eb3f85af93479b0af2c4cc3b29ab403d552acec976219757ac8d5765N.exe services.exe PID 2328 wrote to memory of 2556 2328 bf1c0612eb3f85af93479b0af2c4cc3b29ab403d552acec976219757ac8d5765N.exe services.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\bf1c0612eb3f85af93479b0af2c4cc3b29ab403d552acec976219757ac8d5765N.exe"C:\Users\Admin\AppData\Local\Temp\bf1c0612eb3f85af93479b0af2c4cc3b29ab403d552acec976219757ac8d5765N.exe"1⤵
- Adds Run key to start application
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2328 -
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:2556
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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MD5
d41d8cd98f00b204e9800998ecf8427e
SHA1da39a3ee5e6b4b0d3255bfef95601890afd80709
SHA256e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855
SHA512cf83e1357eefb8bdf1542850d66d8007d620e4050b5715dc83f4a921d36ce9ce47d0d13c5d85f2b0ff8318d2877eec2f63b931bd47417a81a538327af927da3e
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Filesize
8KB
MD5b0fe74719b1b647e2056641931907f4a
SHA1e858c206d2d1542a79936cb00d85da853bfc95e2
SHA256bf316f51d0c345d61eaee3940791b64e81f676e3bca42bad61073227bee6653c
SHA5129c82e88264696d0dadef9c0442ad8d1183e48f0fb355a4fc9bf4fa5db4e27745039f98b1fd1febff620a5ded6dd493227f00d7d2e74b19757685aa8655f921c2