Analysis
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max time kernel
41s -
max time network
43s -
platform
windows11-21h2_x64 -
resource
win11-20241007-en -
resource tags
arch:x64arch:x86image:win11-20241007-enlocale:en-usos:windows11-21h2-x64system -
submitted
01-11-2024 17:52
Behavioral task
behavioral1
Sample
d6e74bd5b0dfbb02e18d16f1d59433742e34225abacb2a3503ce4d00ef289165N.exe
Resource
win11-20241007-en
General
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Target
d6e74bd5b0dfbb02e18d16f1d59433742e34225abacb2a3503ce4d00ef289165N.exe
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Size
29KB
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MD5
2d65579ad10536a2c3260c0cbbfe3af0
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SHA1
368236346c0d7fd05642d26df401c04f747fefb2
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SHA256
d6e74bd5b0dfbb02e18d16f1d59433742e34225abacb2a3503ce4d00ef289165
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SHA512
b65b13626fa3708787e599581f779d6d9c07ecf98fa9b667026e30d8a4b03f570b2a9f21e1bdff97858d5920e3e763dd733e22a28c6802b79ea50e77696d756e
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SSDEEP
768:AEwHupU99d2JE0jNJJ83+8zzqgTdVY9/Nu+:AEwVs+0jNDY1qi/qX
Malware Config
Signatures
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Detects MyDoom family 1 IoCs
Processes:
resource yara_rule behavioral1/memory/3140-13-0x0000000000500000-0x0000000000510200-memory.dmp family_mydoom -
Mydoom family
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Executes dropped EXE 1 IoCs
Processes:
services.exepid process 3584 services.exe -
Adds Run key to start application 2 TTPs 2 IoCs
Processes:
d6e74bd5b0dfbb02e18d16f1d59433742e34225abacb2a3503ce4d00ef289165N.exeservices.exedescription ioc process Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\JavaVM = "C:\\Windows\\java.exe" d6e74bd5b0dfbb02e18d16f1d59433742e34225abacb2a3503ce4d00ef289165N.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\Services = "C:\\Windows\\services.exe" services.exe -
Processes:
resource yara_rule behavioral1/memory/3140-0-0x0000000000500000-0x0000000000510200-memory.dmp upx C:\Windows\services.exe upx behavioral1/memory/3584-5-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral1/memory/3140-13-0x0000000000500000-0x0000000000510200-memory.dmp upx behavioral1/memory/3584-15-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral1/memory/3584-16-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral1/memory/3584-21-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral1/memory/3584-26-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral1/memory/3584-28-0x0000000000400000-0x0000000000408000-memory.dmp upx -
Drops file in Windows directory 3 IoCs
Processes:
d6e74bd5b0dfbb02e18d16f1d59433742e34225abacb2a3503ce4d00ef289165N.exedescription ioc process File created C:\Windows\services.exe d6e74bd5b0dfbb02e18d16f1d59433742e34225abacb2a3503ce4d00ef289165N.exe File opened for modification C:\Windows\java.exe d6e74bd5b0dfbb02e18d16f1d59433742e34225abacb2a3503ce4d00ef289165N.exe File created C:\Windows\java.exe d6e74bd5b0dfbb02e18d16f1d59433742e34225abacb2a3503ce4d00ef289165N.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.
Processes:
d6e74bd5b0dfbb02e18d16f1d59433742e34225abacb2a3503ce4d00ef289165N.exeservices.exedescription ioc process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language d6e74bd5b0dfbb02e18d16f1d59433742e34225abacb2a3503ce4d00ef289165N.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language services.exe -
Modifies registry class 3 IoCs
Processes:
BackgroundTransferHost.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-1537126222-899333903-2037027349-1000_Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppContainer\Storage\microsoftwindows.client.cbs_cw5n1h2txyewy\Internet Settings\Cache\Cookies\CachePrefix = "Cookie:" BackgroundTransferHost.exe Set value (str) \REGISTRY\USER\S-1-5-21-1537126222-899333903-2037027349-1000_Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppContainer\Storage\microsoftwindows.client.cbs_cw5n1h2txyewy\Internet Settings\Cache\History\CachePrefix = "Visited:" BackgroundTransferHost.exe Set value (str) \REGISTRY\USER\S-1-5-21-1537126222-899333903-2037027349-1000_Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppContainer\Storage\microsoftwindows.client.cbs_cw5n1h2txyewy\Internet Settings\Cache\Content\CachePrefix BackgroundTransferHost.exe -
Suspicious use of WriteProcessMemory 3 IoCs
Processes:
d6e74bd5b0dfbb02e18d16f1d59433742e34225abacb2a3503ce4d00ef289165N.exedescription pid process target process PID 3140 wrote to memory of 3584 3140 d6e74bd5b0dfbb02e18d16f1d59433742e34225abacb2a3503ce4d00ef289165N.exe services.exe PID 3140 wrote to memory of 3584 3140 d6e74bd5b0dfbb02e18d16f1d59433742e34225abacb2a3503ce4d00ef289165N.exe services.exe PID 3140 wrote to memory of 3584 3140 d6e74bd5b0dfbb02e18d16f1d59433742e34225abacb2a3503ce4d00ef289165N.exe services.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\d6e74bd5b0dfbb02e18d16f1d59433742e34225abacb2a3503ce4d00ef289165N.exe"C:\Users\Admin\AppData\Local\Temp\d6e74bd5b0dfbb02e18d16f1d59433742e34225abacb2a3503ce4d00ef289165N.exe"1⤵
- Adds Run key to start application
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3140 -
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:3584
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C:\Windows\System32\rundll32.exeC:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding1⤵PID:1136
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C:\Windows\system32\BackgroundTransferHost.exe"BackgroundTransferHost.exe" -ServerName:BackgroundTransferHost.131⤵
- Modifies registry class
PID:4768
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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MD5
d41d8cd98f00b204e9800998ecf8427e
SHA1da39a3ee5e6b4b0d3255bfef95601890afd80709
SHA256e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855
SHA512cf83e1357eefb8bdf1542850d66d8007d620e4050b5715dc83f4a921d36ce9ce47d0d13c5d85f2b0ff8318d2877eec2f63b931bd47417a81a538327af927da3e
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Filesize
8KB
MD5b0fe74719b1b647e2056641931907f4a
SHA1e858c206d2d1542a79936cb00d85da853bfc95e2
SHA256bf316f51d0c345d61eaee3940791b64e81f676e3bca42bad61073227bee6653c
SHA5129c82e88264696d0dadef9c0442ad8d1183e48f0fb355a4fc9bf4fa5db4e27745039f98b1fd1febff620a5ded6dd493227f00d7d2e74b19757685aa8655f921c2