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
16-12-2024 07:32
Behavioral task
behavioral1
Sample
37a5ce4e917688ba7073026a99edd25e398710338d640a098d0e3591bc0fbad3N.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
37a5ce4e917688ba7073026a99edd25e398710338d640a098d0e3591bc0fbad3N.exe
Resource
win10v2004-20241007-en
General
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Target
37a5ce4e917688ba7073026a99edd25e398710338d640a098d0e3591bc0fbad3N.exe
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Size
29KB
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MD5
1d1e4a1ced0ddad42c315ba54c2787a0
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SHA1
ec204e7fb9e1c78651dd3508625db2f8436225d5
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SHA256
37a5ce4e917688ba7073026a99edd25e398710338d640a098d0e3591bc0fbad3
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SHA512
623476aee7d79cc0cd605695b99f89bf3d8698bde882c1f362cf51f08f5d396bf01a54c32a93eb7ef8b6345a81d7549fe9949b6a7b9c3f91b1da2f7b4ae11ab0
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SSDEEP
768:AEwHupU99d2JE0jNJJ83+8zzqgTdVY9/5:AEwVs+0jNDY1qi/qh
Malware Config
Signatures
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Detects MyDoom family 5 IoCs
resource yara_rule behavioral1/memory/2672-17-0x0000000000500000-0x0000000000510200-memory.dmp family_mydoom behavioral1/memory/2672-41-0x0000000000500000-0x0000000000510200-memory.dmp family_mydoom behavioral1/memory/2672-62-0x0000000000500000-0x0000000000510200-memory.dmp family_mydoom behavioral1/memory/2672-66-0x0000000000500000-0x0000000000510200-memory.dmp family_mydoom behavioral1/memory/2672-68-0x0000000000500000-0x0000000000510200-memory.dmp family_mydoom -
Mydoom family
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Executes dropped EXE 1 IoCs
pid Process 2848 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" 37a5ce4e917688ba7073026a99edd25e398710338d640a098d0e3591bc0fbad3N.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\Services = "C:\\Windows\\services.exe" services.exe -
resource yara_rule behavioral1/memory/2672-0-0x0000000000500000-0x0000000000510200-memory.dmp upx behavioral1/memory/2672-4-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral1/memory/2672-9-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral1/files/0x000700000001878d-10.dat upx behavioral1/memory/2848-11-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral1/memory/2672-17-0x0000000000500000-0x0000000000510200-memory.dmp upx behavioral1/memory/2848-19-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral1/memory/2848-20-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral1/memory/2848-25-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral1/memory/2848-30-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral1/memory/2848-32-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral1/memory/2848-37-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral1/memory/2672-41-0x0000000000500000-0x0000000000510200-memory.dmp upx behavioral1/memory/2848-42-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral1/memory/2848-44-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral1/files/0x003e000000018662-57.dat upx behavioral1/memory/2672-62-0x0000000000500000-0x0000000000510200-memory.dmp upx behavioral1/memory/2848-63-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral1/memory/2672-66-0x0000000000500000-0x0000000000510200-memory.dmp upx behavioral1/memory/2848-67-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral1/memory/2672-68-0x0000000000500000-0x0000000000510200-memory.dmp upx behavioral1/memory/2848-69-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral1/memory/2848-74-0x0000000000400000-0x0000000000408000-memory.dmp upx -
Drops file in Windows directory 3 IoCs
description ioc Process File created C:\Windows\services.exe 37a5ce4e917688ba7073026a99edd25e398710338d640a098d0e3591bc0fbad3N.exe File opened for modification C:\Windows\java.exe 37a5ce4e917688ba7073026a99edd25e398710338d640a098d0e3591bc0fbad3N.exe File created C:\Windows\java.exe 37a5ce4e917688ba7073026a99edd25e398710338d640a098d0e3591bc0fbad3N.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 37a5ce4e917688ba7073026a99edd25e398710338d640a098d0e3591bc0fbad3N.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language services.exe -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 2672 wrote to memory of 2848 2672 37a5ce4e917688ba7073026a99edd25e398710338d640a098d0e3591bc0fbad3N.exe 30 PID 2672 wrote to memory of 2848 2672 37a5ce4e917688ba7073026a99edd25e398710338d640a098d0e3591bc0fbad3N.exe 30 PID 2672 wrote to memory of 2848 2672 37a5ce4e917688ba7073026a99edd25e398710338d640a098d0e3591bc0fbad3N.exe 30 PID 2672 wrote to memory of 2848 2672 37a5ce4e917688ba7073026a99edd25e398710338d640a098d0e3591bc0fbad3N.exe 30
Processes
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C:\Users\Admin\AppData\Local\Temp\37a5ce4e917688ba7073026a99edd25e398710338d640a098d0e3591bc0fbad3N.exe"C:\Users\Admin\AppData\Local\Temp\37a5ce4e917688ba7073026a99edd25e398710338d640a098d0e3591bc0fbad3N.exe"1⤵
- Adds Run key to start application
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2672 -
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:2848
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
29KB
MD5322f899c5bc9ef4e77f1154f5fcfea09
SHA1ce401a2d6e1050f88a4d584874852ebbb8eee937
SHA25643a6ac1f9f25f552df3d0fe81ecf1457dae773b68817d4e7cf53a1de1fa23711
SHA512281cc5c20e2c8400acb394973aaf5213bad9fc73c68a6bc98e3f6cd2806d684d5971e4e2f08ea5ed9c9043e1a3ea594a9b362682854616c216fa1bce44f41be2
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Filesize
352B
MD5fdb324d26a4b1d502c1f910e90dade38
SHA1eff79da5fd4a6f488d3c5e433cac08b6f7fe6caf
SHA256e7a24a9948c72eae87e290e5b9dcd1afb695b923fa8d353ccda2974e64fa8c33
SHA5126d0f5260c4567af0b5a62edfef0b9ca997b7b73705c3a2958636c24995f08fa953457c42f4b39dfcc91cca7fd9199817a59f5eae5ee56b3d38f477a6471a2561
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Filesize
8KB
MD5b0fe74719b1b647e2056641931907f4a
SHA1e858c206d2d1542a79936cb00d85da853bfc95e2
SHA256bf316f51d0c345d61eaee3940791b64e81f676e3bca42bad61073227bee6653c
SHA5129c82e88264696d0dadef9c0442ad8d1183e48f0fb355a4fc9bf4fa5db4e27745039f98b1fd1febff620a5ded6dd493227f00d7d2e74b19757685aa8655f921c2