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Analysis
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max time kernel
120s -
max time network
115s -
platform
windows7_x64 -
resource
win7-20240903-en -
resource tags
arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system -
submitted
19/12/2024, 23:32
Behavioral task
behavioral1
Sample
b5686a59f355b7b56e2f55868fcf4db0d8fd8b181e7b083a18b1ddf498ce15b2N.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
b5686a59f355b7b56e2f55868fcf4db0d8fd8b181e7b083a18b1ddf498ce15b2N.exe
Resource
win10v2004-20241007-en
General
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Target
b5686a59f355b7b56e2f55868fcf4db0d8fd8b181e7b083a18b1ddf498ce15b2N.exe
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Size
29KB
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MD5
d65daf876686675dfbef004fb2e54070
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SHA1
56ab26bab512f4f99fd042b082fc01ac17d74410
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SHA256
b5686a59f355b7b56e2f55868fcf4db0d8fd8b181e7b083a18b1ddf498ce15b2
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SHA512
7229a1c3a1c99962d19c04116d117e51ffc3843f7113526bc33e2b96a759a0cfd7e50cec67425f6cd25baf0f6f57f6c269f1c837ae206ff211fe7461105a218f
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SSDEEP
768:AEwHupU99d2JE0jNJJ83+8zzqgTdVY9/mhQ:AEwVs+0jNDY1qi/qOm
Malware Config
Signatures
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Detects MyDoom family 6 IoCs
resource yara_rule behavioral1/memory/2696-16-0x0000000000500000-0x0000000000510200-memory.dmp family_mydoom behavioral1/memory/2696-43-0x0000000000500000-0x0000000000510200-memory.dmp family_mydoom behavioral1/memory/2696-48-0x0000000000500000-0x0000000000510200-memory.dmp family_mydoom behavioral1/memory/2696-66-0x0000000000500000-0x0000000000510200-memory.dmp family_mydoom behavioral1/memory/2696-68-0x0000000000500000-0x0000000000510200-memory.dmp family_mydoom behavioral1/memory/2696-73-0x0000000000500000-0x0000000000510200-memory.dmp family_mydoom -
Mydoom family
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Executes dropped EXE 1 IoCs
pid Process 3024 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" b5686a59f355b7b56e2f55868fcf4db0d8fd8b181e7b083a18b1ddf498ce15b2N.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\Services = "C:\\Windows\\services.exe" services.exe -
resource yara_rule behavioral1/memory/2696-0-0x0000000000500000-0x0000000000510200-memory.dmp upx behavioral1/memory/2696-4-0x00000000003A0000-0x00000000003A8000-memory.dmp upx behavioral1/files/0x0009000000016cfe-10.dat upx behavioral1/memory/2696-16-0x0000000000500000-0x0000000000510200-memory.dmp upx behavioral1/memory/3024-19-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral1/memory/3024-20-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral1/memory/3024-25-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral1/memory/3024-30-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral1/memory/3024-32-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral1/memory/3024-37-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral1/memory/3024-42-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral1/memory/2696-43-0x0000000000500000-0x0000000000510200-memory.dmp upx behavioral1/memory/3024-44-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral1/memory/2696-48-0x0000000000500000-0x0000000000510200-memory.dmp upx behavioral1/memory/3024-49-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral1/files/0x0004000000004ed7-54.dat upx behavioral1/memory/2696-66-0x0000000000500000-0x0000000000510200-memory.dmp upx behavioral1/memory/3024-67-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral1/memory/2696-68-0x0000000000500000-0x0000000000510200-memory.dmp upx behavioral1/memory/3024-69-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral1/memory/2696-73-0x0000000000500000-0x0000000000510200-memory.dmp upx behavioral1/memory/3024-74-0x0000000000400000-0x0000000000408000-memory.dmp upx -
Drops file in Windows directory 3 IoCs
description ioc Process File created C:\Windows\services.exe b5686a59f355b7b56e2f55868fcf4db0d8fd8b181e7b083a18b1ddf498ce15b2N.exe File opened for modification C:\Windows\java.exe b5686a59f355b7b56e2f55868fcf4db0d8fd8b181e7b083a18b1ddf498ce15b2N.exe File created C:\Windows\java.exe b5686a59f355b7b56e2f55868fcf4db0d8fd8b181e7b083a18b1ddf498ce15b2N.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 services.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language b5686a59f355b7b56e2f55868fcf4db0d8fd8b181e7b083a18b1ddf498ce15b2N.exe -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 2696 wrote to memory of 3024 2696 b5686a59f355b7b56e2f55868fcf4db0d8fd8b181e7b083a18b1ddf498ce15b2N.exe 30 PID 2696 wrote to memory of 3024 2696 b5686a59f355b7b56e2f55868fcf4db0d8fd8b181e7b083a18b1ddf498ce15b2N.exe 30 PID 2696 wrote to memory of 3024 2696 b5686a59f355b7b56e2f55868fcf4db0d8fd8b181e7b083a18b1ddf498ce15b2N.exe 30 PID 2696 wrote to memory of 3024 2696 b5686a59f355b7b56e2f55868fcf4db0d8fd8b181e7b083a18b1ddf498ce15b2N.exe 30
Processes
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C:\Users\Admin\AppData\Local\Temp\b5686a59f355b7b56e2f55868fcf4db0d8fd8b181e7b083a18b1ddf498ce15b2N.exe"C:\Users\Admin\AppData\Local\Temp\b5686a59f355b7b56e2f55868fcf4db0d8fd8b181e7b083a18b1ddf498ce15b2N.exe"1⤵
- Adds Run key to start application
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2696 -
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:3024
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
29KB
MD588e6d1f38287f414e0099358a3442f20
SHA1bb5c9d062d944504467950ae8182d76a3d4fa101
SHA256d452cb875f0cd981bc9d5528cb05f3318ad462632b60e058478bf6177708f2ba
SHA5129ae0d3cbd9b804b695103bad2d781688e57413db0191d274c5ff6f1262e03c9e0233ae90fe7a3884665788333c172c58319a009b1b07699a5cdbb6830b34f306
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Filesize
320B
MD5fa7dfd4138ee8b286e3a4a49f366f0c6
SHA1f5cf6281e7696a01f3d47a4313fe0a5c1fdfa3cf
SHA25615d79867e55e657f74563a5b6a70aeb8e435a8320074a57feb99cb2fcc1438b1
SHA51214db5e7e031b79c47bb5eb94d1c62af0e45cc29ed4d7493d3fe3eeeb65970a7bfff112786e081657cf823ded0dad1e78722af50074f357339bf78ecc4b977cb4
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Filesize
8KB
MD5b0fe74719b1b647e2056641931907f4a
SHA1e858c206d2d1542a79936cb00d85da853bfc95e2
SHA256bf316f51d0c345d61eaee3940791b64e81f676e3bca42bad61073227bee6653c
SHA5129c82e88264696d0dadef9c0442ad8d1183e48f0fb355a4fc9bf4fa5db4e27745039f98b1fd1febff620a5ded6dd493227f00d7d2e74b19757685aa8655f921c2