Analysis
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max time kernel
120s -
max time network
120s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system -
submitted
07-12-2024 22:37
Behavioral task
behavioral1
Sample
3c763397f3c72c3a1b091955b6ac9c02a2d6d918b441e41ac1b9c42b1386af56N.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
3c763397f3c72c3a1b091955b6ac9c02a2d6d918b441e41ac1b9c42b1386af56N.exe
Resource
win10v2004-20241007-en
General
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Target
3c763397f3c72c3a1b091955b6ac9c02a2d6d918b441e41ac1b9c42b1386af56N.exe
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Size
29KB
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MD5
e8b9a783787332558bb1cb9ef275eb10
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SHA1
54b2c48e81174d0d5541efeb82ae71b51d642746
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SHA256
3c763397f3c72c3a1b091955b6ac9c02a2d6d918b441e41ac1b9c42b1386af56
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SHA512
581a00a9f14b72ccfbef811e712c75c15812fe573bb15b9ee72f84fdf4a6b99742492596e79a2c829a9ff3189ffed46d4ea535bca8b001eabcaa1a89527b79c4
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SSDEEP
768:AEwHupU99d2JE0jNJJ83+8zzqgTdVY9/6:AEwVs+0jNDY1qi/qy
Malware Config
Signatures
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Detects MyDoom family 5 IoCs
resource yara_rule behavioral2/memory/3936-13-0x0000000000500000-0x0000000000510200-memory.dmp family_mydoom behavioral2/memory/3936-44-0x0000000000500000-0x0000000000510200-memory.dmp family_mydoom behavioral2/memory/3936-49-0x0000000000500000-0x0000000000510200-memory.dmp family_mydoom behavioral2/memory/3936-142-0x0000000000500000-0x0000000000510200-memory.dmp family_mydoom behavioral2/memory/3936-159-0x0000000000500000-0x0000000000510200-memory.dmp family_mydoom -
Mydoom family
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Executes dropped EXE 1 IoCs
pid Process 2740 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" 3c763397f3c72c3a1b091955b6ac9c02a2d6d918b441e41ac1b9c42b1386af56N.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\Services = "C:\\Windows\\services.exe" services.exe -
resource yara_rule behavioral2/memory/3936-0-0x0000000000500000-0x0000000000510200-memory.dmp upx behavioral2/files/0x0007000000023c9b-4.dat upx behavioral2/memory/2740-5-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral2/memory/3936-13-0x0000000000500000-0x0000000000510200-memory.dmp upx behavioral2/memory/2740-15-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral2/memory/2740-16-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral2/memory/2740-21-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral2/memory/2740-26-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral2/memory/2740-28-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral2/memory/2740-33-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral2/memory/2740-38-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral2/memory/2740-40-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral2/memory/3936-44-0x0000000000500000-0x0000000000510200-memory.dmp upx behavioral2/memory/2740-45-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral2/memory/3936-49-0x0000000000500000-0x0000000000510200-memory.dmp upx behavioral2/memory/2740-50-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral2/files/0x000300000001e742-55.dat upx behavioral2/memory/3936-142-0x0000000000500000-0x0000000000510200-memory.dmp upx behavioral2/memory/2740-143-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral2/memory/3936-159-0x0000000000500000-0x0000000000510200-memory.dmp upx behavioral2/memory/2740-160-0x0000000000400000-0x0000000000408000-memory.dmp upx -
Drops file in Windows directory 3 IoCs
description ioc Process File created C:\Windows\services.exe 3c763397f3c72c3a1b091955b6ac9c02a2d6d918b441e41ac1b9c42b1386af56N.exe File opened for modification C:\Windows\java.exe 3c763397f3c72c3a1b091955b6ac9c02a2d6d918b441e41ac1b9c42b1386af56N.exe File created C:\Windows\java.exe 3c763397f3c72c3a1b091955b6ac9c02a2d6d918b441e41ac1b9c42b1386af56N.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 3c763397f3c72c3a1b091955b6ac9c02a2d6d918b441e41ac1b9c42b1386af56N.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language services.exe -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 3936 wrote to memory of 2740 3936 3c763397f3c72c3a1b091955b6ac9c02a2d6d918b441e41ac1b9c42b1386af56N.exe 83 PID 3936 wrote to memory of 2740 3936 3c763397f3c72c3a1b091955b6ac9c02a2d6d918b441e41ac1b9c42b1386af56N.exe 83 PID 3936 wrote to memory of 2740 3936 3c763397f3c72c3a1b091955b6ac9c02a2d6d918b441e41ac1b9c42b1386af56N.exe 83
Processes
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C:\Users\Admin\AppData\Local\Temp\3c763397f3c72c3a1b091955b6ac9c02a2d6d918b441e41ac1b9c42b1386af56N.exe"C:\Users\Admin\AppData\Local\Temp\3c763397f3c72c3a1b091955b6ac9c02a2d6d918b441e41ac1b9c42b1386af56N.exe"1⤵
- Adds Run key to start application
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3936 -
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:2740
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
29KB
MD518c1aeb9c37db706c211bfabae126edc
SHA11018d3151b35071a4824d40ed8f367273bd6daad
SHA256d235d1458a8b00e0e3fa65fc19ee0ce4127c437a63a9ff7a6d0e52cf01fe793d
SHA512057ff3336c430dd8850ffd5531bdfb234d32c8951769b4cc531fb548576a8475dcc56d3d3dc5e2ad5e6c7856908b123c392fd673f8190d1f6cead847d1c24cf6
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Filesize
352B
MD5f958e9df1a7c9ab21d0c2a762e206f01
SHA15e1f795686cd3c27d4537853b43274bb0953bdfd
SHA25684dcea4edf34cbe14845bafcf14a51ca419144b95d0b9421993a3fa1a76330b5
SHA512d879cfb542bd2cb56228b9d1fe6f8e9599290d33d59b5953f534ea63621a11dda1ec89ce28ad4841c38615b9bc046e35292ff72effcd8ea07ade591fba6b812c
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Filesize
8KB
MD5b0fe74719b1b647e2056641931907f4a
SHA1e858c206d2d1542a79936cb00d85da853bfc95e2
SHA256bf316f51d0c345d61eaee3940791b64e81f676e3bca42bad61073227bee6653c
SHA5129c82e88264696d0dadef9c0442ad8d1183e48f0fb355a4fc9bf4fa5db4e27745039f98b1fd1febff620a5ded6dd493227f00d7d2e74b19757685aa8655f921c2