Analysis
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max time kernel
120s -
max time network
118s -
platform
windows7_x64 -
resource
win7-20240708-en -
resource tags
arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system -
submitted
07-12-2024 10:55
Behavioral task
behavioral1
Sample
b38e9cc23ea45f290b99980fc9431e32e17a4c5fe1acd2c4e8c2d23dc96f2f64.exe
Resource
win7-20240708-en
Behavioral task
behavioral2
Sample
b38e9cc23ea45f290b99980fc9431e32e17a4c5fe1acd2c4e8c2d23dc96f2f64.exe
Resource
win10v2004-20241007-en
General
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Target
b38e9cc23ea45f290b99980fc9431e32e17a4c5fe1acd2c4e8c2d23dc96f2f64.exe
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Size
29KB
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MD5
2f19c15738272a8a3ec69cfe9e2f7952
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SHA1
e42df4ff8b6d6ceec3156fb9135086ecd6047b7a
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SHA256
b38e9cc23ea45f290b99980fc9431e32e17a4c5fe1acd2c4e8c2d23dc96f2f64
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SHA512
290d81d9867450c4cbcb2989ea3b07449a285c3fd8c196ca7476bf4f6a18445bca7dfd5fab5e8a82163f1d062cc1f873e9b95066fde8bb3aaea80ad2d11ab12d
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SSDEEP
768:AEwHupU99d2JE0jNJJ83+8zzqgTdVY9/7:AEwVs+0jNDY1qi/qz
Malware Config
Signatures
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Detects MyDoom family 3 IoCs
resource yara_rule behavioral1/memory/1976-17-0x0000000000500000-0x0000000000510200-memory.dmp family_mydoom behavioral1/memory/1976-57-0x0000000000500000-0x0000000000510200-memory.dmp family_mydoom behavioral1/memory/1976-62-0x0000000000500000-0x0000000000510200-memory.dmp family_mydoom -
Mydoom family
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Executes dropped EXE 1 IoCs
pid Process 2236 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" b38e9cc23ea45f290b99980fc9431e32e17a4c5fe1acd2c4e8c2d23dc96f2f64.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\Services = "C:\\Windows\\services.exe" services.exe -
resource yara_rule behavioral1/memory/1976-0-0x0000000000500000-0x0000000000510200-memory.dmp upx behavioral1/files/0x00080000000164b1-6.dat upx behavioral1/memory/2236-11-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral1/memory/1976-17-0x0000000000500000-0x0000000000510200-memory.dmp upx behavioral1/memory/1976-18-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral1/memory/2236-20-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral1/memory/2236-22-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral1/memory/2236-27-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral1/memory/2236-32-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral1/memory/2236-34-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral1/memory/2236-39-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral1/memory/2236-44-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral1/memory/2236-46-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral1/memory/2236-51-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral1/memory/2236-56-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral1/memory/1976-57-0x0000000000500000-0x0000000000510200-memory.dmp upx behavioral1/memory/2236-58-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral1/memory/1976-62-0x0000000000500000-0x0000000000510200-memory.dmp upx behavioral1/memory/2236-63-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral1/files/0x00360000000160e7-68.dat upx -
Drops file in Windows directory 3 IoCs
description ioc Process File created C:\Windows\services.exe b38e9cc23ea45f290b99980fc9431e32e17a4c5fe1acd2c4e8c2d23dc96f2f64.exe File opened for modification C:\Windows\java.exe b38e9cc23ea45f290b99980fc9431e32e17a4c5fe1acd2c4e8c2d23dc96f2f64.exe File created C:\Windows\java.exe b38e9cc23ea45f290b99980fc9431e32e17a4c5fe1acd2c4e8c2d23dc96f2f64.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 b38e9cc23ea45f290b99980fc9431e32e17a4c5fe1acd2c4e8c2d23dc96f2f64.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language services.exe -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 1976 wrote to memory of 2236 1976 b38e9cc23ea45f290b99980fc9431e32e17a4c5fe1acd2c4e8c2d23dc96f2f64.exe 30 PID 1976 wrote to memory of 2236 1976 b38e9cc23ea45f290b99980fc9431e32e17a4c5fe1acd2c4e8c2d23dc96f2f64.exe 30 PID 1976 wrote to memory of 2236 1976 b38e9cc23ea45f290b99980fc9431e32e17a4c5fe1acd2c4e8c2d23dc96f2f64.exe 30 PID 1976 wrote to memory of 2236 1976 b38e9cc23ea45f290b99980fc9431e32e17a4c5fe1acd2c4e8c2d23dc96f2f64.exe 30
Processes
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C:\Users\Admin\AppData\Local\Temp\b38e9cc23ea45f290b99980fc9431e32e17a4c5fe1acd2c4e8c2d23dc96f2f64.exe"C:\Users\Admin\AppData\Local\Temp\b38e9cc23ea45f290b99980fc9431e32e17a4c5fe1acd2c4e8c2d23dc96f2f64.exe"1⤵
- Adds Run key to start application
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1976 -
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:2236
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
29KB
MD53eb3c6f08d11007862826965b017a45d
SHA1d8cff3d09dbad15feb52b889ee9b97edabb65a1b
SHA25673bf81c92598027e8bfcdcd2d05eacec2d70f6e881c1c4335d857ff0fb5b80cd
SHA51205823ed1c486bef3a3254d6446744808505beb3aad738ca87aad2733499ad7d3679cb70c46609fc723e9555cd9bb507a1524f423d31771b010950c86df24fb88
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Filesize
352B
MD50289c6bccceafcec1eedd86f3047e407
SHA1ad91fdc3737358e3864326384314c5d8e53e597d
SHA25698d607ec13f2f61c86858f9a506bb6e493f3835fdec5fa3766c5b384b4298900
SHA5128f590a4e04381ad33ed4bb28107d08cd8b2c9c67f5737304a95dd75199be1e9990c58ae6ccf6f0a94f112ca8b8abb71565a16f6c87a36130beef2db7ffc99691
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Filesize
8KB
MD5b0fe74719b1b647e2056641931907f4a
SHA1e858c206d2d1542a79936cb00d85da853bfc95e2
SHA256bf316f51d0c345d61eaee3940791b64e81f676e3bca42bad61073227bee6653c
SHA5129c82e88264696d0dadef9c0442ad8d1183e48f0fb355a4fc9bf4fa5db4e27745039f98b1fd1febff620a5ded6dd493227f00d7d2e74b19757685aa8655f921c2