Analysis
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max time kernel
120s -
max time network
116s -
platform
windows7_x64 -
resource
win7-20240903-en -
resource tags
arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system -
submitted
31-12-2024 22:14
Behavioral task
behavioral1
Sample
420ba37d2a16b7da97f1154a2771e0531b6a9e84f482cd7ba51f42a295a64285.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
420ba37d2a16b7da97f1154a2771e0531b6a9e84f482cd7ba51f42a295a64285.exe
Resource
win10v2004-20241007-en
General
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Target
420ba37d2a16b7da97f1154a2771e0531b6a9e84f482cd7ba51f42a295a64285.exe
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Size
29KB
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MD5
cfb5993c8548c054875f66478bf6f977
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SHA1
fdc37391da00e6e14fdd15d5901abcad17868d51
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SHA256
420ba37d2a16b7da97f1154a2771e0531b6a9e84f482cd7ba51f42a295a64285
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SHA512
6bcd9abca86cd3e1ff5e5a844b6adbffcb01d2cd71c0951f39ce46e488a7b7a6cbfb53eee93751d7346b1803e7ecf0a6ac752f3b4594846c8e4dd520cc672a25
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SSDEEP
768:AEwHupU99d2JE0jNJJ83+8zzqgTdVY9/ehw:AEwVs+0jNDY1qi/qG2
Malware Config
Signatures
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Detects MyDoom family 3 IoCs
resource yara_rule behavioral1/memory/2640-16-0x0000000000500000-0x0000000000510200-memory.dmp family_mydoom behavioral1/memory/2640-54-0x0000000000500000-0x0000000000510200-memory.dmp family_mydoom behavioral1/memory/2640-81-0x0000000000500000-0x0000000000510200-memory.dmp family_mydoom -
Mydoom family
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Executes dropped EXE 1 IoCs
pid Process 2688 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" 420ba37d2a16b7da97f1154a2771e0531b6a9e84f482cd7ba51f42a295a64285.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\Services = "C:\\Windows\\services.exe" services.exe -
resource yara_rule behavioral1/memory/2640-0-0x0000000000500000-0x0000000000510200-memory.dmp upx behavioral1/memory/2640-4-0x00000000001B0000-0x00000000001B8000-memory.dmp upx behavioral1/files/0x0008000000016890-7.dat upx behavioral1/memory/2688-10-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral1/memory/2640-16-0x0000000000500000-0x0000000000510200-memory.dmp upx behavioral1/memory/2640-17-0x00000000001B0000-0x00000000001B8000-memory.dmp upx behavioral1/memory/2688-20-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral1/memory/2688-21-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral1/memory/2688-26-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral1/memory/2688-31-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral1/memory/2688-33-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral1/memory/2688-38-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral1/memory/2688-43-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral1/memory/2688-45-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral1/memory/2688-50-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral1/memory/2640-54-0x0000000000500000-0x0000000000510200-memory.dmp upx behavioral1/memory/2688-55-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral1/memory/2688-57-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral1/files/0x00340000000164de-70.dat upx behavioral1/memory/2640-81-0x0000000000500000-0x0000000000510200-memory.dmp upx behavioral1/memory/2688-82-0x0000000000400000-0x0000000000408000-memory.dmp upx -
Drops file in Windows directory 3 IoCs
description ioc Process File created C:\Windows\services.exe 420ba37d2a16b7da97f1154a2771e0531b6a9e84f482cd7ba51f42a295a64285.exe File opened for modification C:\Windows\java.exe 420ba37d2a16b7da97f1154a2771e0531b6a9e84f482cd7ba51f42a295a64285.exe File created C:\Windows\java.exe 420ba37d2a16b7da97f1154a2771e0531b6a9e84f482cd7ba51f42a295a64285.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 420ba37d2a16b7da97f1154a2771e0531b6a9e84f482cd7ba51f42a295a64285.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language services.exe -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 2640 wrote to memory of 2688 2640 420ba37d2a16b7da97f1154a2771e0531b6a9e84f482cd7ba51f42a295a64285.exe 30 PID 2640 wrote to memory of 2688 2640 420ba37d2a16b7da97f1154a2771e0531b6a9e84f482cd7ba51f42a295a64285.exe 30 PID 2640 wrote to memory of 2688 2640 420ba37d2a16b7da97f1154a2771e0531b6a9e84f482cd7ba51f42a295a64285.exe 30 PID 2640 wrote to memory of 2688 2640 420ba37d2a16b7da97f1154a2771e0531b6a9e84f482cd7ba51f42a295a64285.exe 30
Processes
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C:\Users\Admin\AppData\Local\Temp\420ba37d2a16b7da97f1154a2771e0531b6a9e84f482cd7ba51f42a295a64285.exe"C:\Users\Admin\AppData\Local\Temp\420ba37d2a16b7da97f1154a2771e0531b6a9e84f482cd7ba51f42a295a64285.exe"1⤵
- Adds Run key to start application
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2640 -
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:2688
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
29KB
MD5a82b364fe96a185c2300c7df45ae1cf5
SHA181264615769ab67c6d244a33df4d93a8a78df961
SHA256162439563fcb4553b97e1075345ad5ab2e6ade3d9c55dd1a40f656a6aa5e2c29
SHA512e593cddfec5dd0391f10a7fc8d69bc9e44003ba4ec78cb72af5b5f464ec3b488aec373e201d8cff68fc91926bf5fbda82773bc8b4b908b4cebdf2dfbc2b905c2
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Filesize
320B
MD55b43e96fa3b69a207208926dabb47588
SHA13aa159bf77f42feb04c98daa5fc47135ce278e3c
SHA2563f12b22ee5ca3ccf36310b3ff87fa08088249ce9fd2c12f44d3381008f7b27fc
SHA51287b1a471893d6441830695a4307bcbdc8652ad893e8070413ee98796d414bd938701d8a411dfd26eb5f61f91021d1da0d0ac82c9c2400aa0e49d7318c1f3cd3c
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Filesize
8KB
MD5b0fe74719b1b647e2056641931907f4a
SHA1e858c206d2d1542a79936cb00d85da853bfc95e2
SHA256bf316f51d0c345d61eaee3940791b64e81f676e3bca42bad61073227bee6653c
SHA5129c82e88264696d0dadef9c0442ad8d1183e48f0fb355a4fc9bf4fa5db4e27745039f98b1fd1febff620a5ded6dd493227f00d7d2e74b19757685aa8655f921c2