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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
25/12/2024, 16:02
Behavioral task
behavioral1
Sample
a11dc3a41d049dbf9a78035ea233a4535c8980a4fecc983e5050e35f4785f580.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
a11dc3a41d049dbf9a78035ea233a4535c8980a4fecc983e5050e35f4785f580.exe
Resource
win10v2004-20241007-en
General
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Target
a11dc3a41d049dbf9a78035ea233a4535c8980a4fecc983e5050e35f4785f580.exe
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Size
29KB
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MD5
349460e7e92d3da76a0e962ea014af26
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SHA1
4d05d5a2d99625ee6ebccb5729512cefd4171bfd
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SHA256
a11dc3a41d049dbf9a78035ea233a4535c8980a4fecc983e5050e35f4785f580
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SHA512
180b9fd2d01bcef73da812fed15a573817462a8e1437b73e87d4ac6f3f0faedf9b1f5d1def05ab024ed18ec1b84e3057ff2028eb33cdc6c629adc3c1d1ee0b09
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SSDEEP
768:AEwHupU99d2JE0jNJJ83+8zzqgTdVY9/PhF:AEwVs+0jNDY1qi/qnf
Malware Config
Signatures
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Detects MyDoom family 5 IoCs
resource yara_rule behavioral1/memory/2860-16-0x0000000000500000-0x0000000000510200-memory.dmp family_mydoom behavioral1/memory/2860-47-0x0000000000500000-0x0000000000510200-memory.dmp family_mydoom behavioral1/memory/2860-68-0x0000000000500000-0x0000000000510200-memory.dmp family_mydoom behavioral1/memory/2860-70-0x0000000000500000-0x0000000000510200-memory.dmp family_mydoom behavioral1/memory/2860-75-0x0000000000500000-0x0000000000510200-memory.dmp family_mydoom -
Mydoom family
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Executes dropped EXE 1 IoCs
pid Process 2992 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" a11dc3a41d049dbf9a78035ea233a4535c8980a4fecc983e5050e35f4785f580.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\Services = "C:\\Windows\\services.exe" services.exe -
resource yara_rule behavioral1/memory/2860-0-0x0000000000500000-0x0000000000510200-memory.dmp upx behavioral1/memory/2860-3-0x00000000001B0000-0x00000000001B8000-memory.dmp upx behavioral1/files/0x0008000000016d4f-7.dat upx behavioral1/memory/2992-10-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral1/memory/2860-16-0x0000000000500000-0x0000000000510200-memory.dmp upx behavioral1/memory/2992-18-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral1/memory/2992-19-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral1/memory/2992-24-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral1/memory/2992-29-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral1/memory/2992-31-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral1/memory/2992-36-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral1/memory/2992-41-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral1/memory/2992-43-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral1/memory/2992-48-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral1/memory/2860-47-0x0000000000500000-0x0000000000510200-memory.dmp upx behavioral1/files/0x0005000000004ed7-58.dat upx behavioral1/memory/2860-68-0x0000000000500000-0x0000000000510200-memory.dmp upx behavioral1/memory/2992-69-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral1/memory/2992-71-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral1/memory/2860-70-0x0000000000500000-0x0000000000510200-memory.dmp upx behavioral1/memory/2860-75-0x0000000000500000-0x0000000000510200-memory.dmp upx behavioral1/memory/2992-76-0x0000000000400000-0x0000000000408000-memory.dmp upx -
Drops file in Windows directory 3 IoCs
description ioc Process File opened for modification C:\Windows\java.exe a11dc3a41d049dbf9a78035ea233a4535c8980a4fecc983e5050e35f4785f580.exe File created C:\Windows\java.exe a11dc3a41d049dbf9a78035ea233a4535c8980a4fecc983e5050e35f4785f580.exe File created C:\Windows\services.exe a11dc3a41d049dbf9a78035ea233a4535c8980a4fecc983e5050e35f4785f580.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 a11dc3a41d049dbf9a78035ea233a4535c8980a4fecc983e5050e35f4785f580.exe -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 2860 wrote to memory of 2992 2860 a11dc3a41d049dbf9a78035ea233a4535c8980a4fecc983e5050e35f4785f580.exe 30 PID 2860 wrote to memory of 2992 2860 a11dc3a41d049dbf9a78035ea233a4535c8980a4fecc983e5050e35f4785f580.exe 30 PID 2860 wrote to memory of 2992 2860 a11dc3a41d049dbf9a78035ea233a4535c8980a4fecc983e5050e35f4785f580.exe 30 PID 2860 wrote to memory of 2992 2860 a11dc3a41d049dbf9a78035ea233a4535c8980a4fecc983e5050e35f4785f580.exe 30
Processes
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C:\Users\Admin\AppData\Local\Temp\a11dc3a41d049dbf9a78035ea233a4535c8980a4fecc983e5050e35f4785f580.exe"C:\Users\Admin\AppData\Local\Temp\a11dc3a41d049dbf9a78035ea233a4535c8980a4fecc983e5050e35f4785f580.exe"1⤵
- Adds Run key to start application
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2860 -
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:2992
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
29KB
MD51761253ae05ee9077752fb9951dbd6bf
SHA1a0e29c78c71af63109148a17539ff1a7f632f332
SHA256a535ff0c793c9432ca2c00a575f26571df3e1837d5890547f8c7291faf3dc79a
SHA512a50e4df4e93d9d3bb21ff961a3a0578abff23b5a9dd885581e1641686a0c1640f54bd59f82e325748cfc992667bbfacd796041452391d2f927fb4806bc008eaa
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Filesize
320B
MD5a44879a949fe8957d52c4ac34de128cb
SHA1939fc929f241a47c3a298486993bf67f54ebc980
SHA256845e8f6d5faf04fa062bd20d81d8b75158f87016488fab0388726a031212fcfd
SHA512084772f2cd0ab5efc45e95c588e04c1f91934e3f1e549ec25122bb9a3f15df68223cad51665a499df99cbbe4822f691e6c33c2aee479cc806c9e58ca0deb15a4
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Filesize
8KB
MD5b0fe74719b1b647e2056641931907f4a
SHA1e858c206d2d1542a79936cb00d85da853bfc95e2
SHA256bf316f51d0c345d61eaee3940791b64e81f676e3bca42bad61073227bee6653c
SHA5129c82e88264696d0dadef9c0442ad8d1183e48f0fb355a4fc9bf4fa5db4e27745039f98b1fd1febff620a5ded6dd493227f00d7d2e74b19757685aa8655f921c2