Analysis
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max time kernel
120s -
max time network
120s -
platform
windows7_x64 -
resource
win7-20240729-en -
resource tags
arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system -
submitted
08-12-2024 01:38
Behavioral task
behavioral1
Sample
63338103b90e3adc6f420154d48829cbd17f1aafb0366fb177af83b8338da8f8N.exe
Resource
win7-20240729-en
Behavioral task
behavioral2
Sample
63338103b90e3adc6f420154d48829cbd17f1aafb0366fb177af83b8338da8f8N.exe
Resource
win10v2004-20241007-en
General
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Target
63338103b90e3adc6f420154d48829cbd17f1aafb0366fb177af83b8338da8f8N.exe
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Size
29KB
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MD5
b888d749e7cfc7d4cc77c000474ef820
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SHA1
00b7a8b7f8512b771b5aa987224279237b41b374
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SHA256
63338103b90e3adc6f420154d48829cbd17f1aafb0366fb177af83b8338da8f8
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SHA512
e2defbee1b803ff952cc02473ed8a95e8ecf6c08d61337919aa838c1b75b721e71212dfea358e1cab43d8dc3f732b1d77959db811acbb86f530301aa0c7eef8f
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SSDEEP
768:AEwHupU99d2JE0jNJJ83+8zzqgTdVY9/h:AEwVs+0jNDY1qi/q5
Malware Config
Signatures
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Detects MyDoom family 5 IoCs
resource yara_rule behavioral1/memory/2500-16-0x0000000000500000-0x0000000000510200-memory.dmp family_mydoom behavioral1/memory/2500-41-0x0000000000500000-0x0000000000510200-memory.dmp family_mydoom behavioral1/memory/2500-65-0x0000000000500000-0x0000000000510200-memory.dmp family_mydoom behavioral1/memory/2500-69-0x0000000000500000-0x0000000000510200-memory.dmp family_mydoom behavioral1/memory/2500-71-0x0000000000500000-0x0000000000510200-memory.dmp family_mydoom -
Mydoom family
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Executes dropped EXE 1 IoCs
pid Process 2456 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" 63338103b90e3adc6f420154d48829cbd17f1aafb0366fb177af83b8338da8f8N.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\Services = "C:\\Windows\\services.exe" services.exe -
resource yara_rule behavioral1/memory/2500-0-0x0000000000500000-0x0000000000510200-memory.dmp upx behavioral1/memory/2500-4-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral1/files/0x0008000000015d0e-7.dat upx behavioral1/memory/2456-10-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral1/memory/2500-16-0x0000000000500000-0x0000000000510200-memory.dmp upx behavioral1/memory/2456-19-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral1/memory/2456-20-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral1/memory/2456-25-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral1/memory/2456-30-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral1/memory/2456-32-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral1/memory/2456-37-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral1/memory/2500-41-0x0000000000500000-0x0000000000510200-memory.dmp upx behavioral1/memory/2456-42-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral1/memory/2456-44-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral1/files/0x0005000000004ed7-57.dat upx behavioral1/memory/2500-65-0x0000000000500000-0x0000000000510200-memory.dmp upx behavioral1/memory/2456-66-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral1/memory/2500-69-0x0000000000500000-0x0000000000510200-memory.dmp upx behavioral1/memory/2456-70-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral1/memory/2500-71-0x0000000000500000-0x0000000000510200-memory.dmp upx behavioral1/memory/2456-72-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral1/memory/2456-77-0x0000000000400000-0x0000000000408000-memory.dmp upx -
Drops file in Windows directory 3 IoCs
description ioc Process File created C:\Windows\java.exe 63338103b90e3adc6f420154d48829cbd17f1aafb0366fb177af83b8338da8f8N.exe File created C:\Windows\services.exe 63338103b90e3adc6f420154d48829cbd17f1aafb0366fb177af83b8338da8f8N.exe File opened for modification C:\Windows\java.exe 63338103b90e3adc6f420154d48829cbd17f1aafb0366fb177af83b8338da8f8N.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 63338103b90e3adc6f420154d48829cbd17f1aafb0366fb177af83b8338da8f8N.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language services.exe -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 2500 wrote to memory of 2456 2500 63338103b90e3adc6f420154d48829cbd17f1aafb0366fb177af83b8338da8f8N.exe 31 PID 2500 wrote to memory of 2456 2500 63338103b90e3adc6f420154d48829cbd17f1aafb0366fb177af83b8338da8f8N.exe 31 PID 2500 wrote to memory of 2456 2500 63338103b90e3adc6f420154d48829cbd17f1aafb0366fb177af83b8338da8f8N.exe 31 PID 2500 wrote to memory of 2456 2500 63338103b90e3adc6f420154d48829cbd17f1aafb0366fb177af83b8338da8f8N.exe 31
Processes
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C:\Users\Admin\AppData\Local\Temp\63338103b90e3adc6f420154d48829cbd17f1aafb0366fb177af83b8338da8f8N.exe"C:\Users\Admin\AppData\Local\Temp\63338103b90e3adc6f420154d48829cbd17f1aafb0366fb177af83b8338da8f8N.exe"1⤵
- Adds Run key to start application
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2500 -
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:2456
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
29KB
MD55d50301b9f8077257a8eb44c44774ade
SHA1c2ec9a8f2716dad9864ec18ba2cd6d50ca5ca34a
SHA25651589dd57455166d041cd45ec9c554faceb5814ee597b0829b69402086dce708
SHA51232f67d5b58d1ac8245de9c407a5eaab7107d5817dd097a58866e707b2fbf6ed8901ef77332860824a64dcd033a2e3420a1e71cc11b7e9c3aaf39ed9a5b3ce2c5
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Filesize
352B
MD5c0a0eda52d678c081d86722041279f53
SHA11e31b2447f8f3a2d100f217607997a0f5ae3894d
SHA2566c841f117f7b45d6dbf829d547fd4a46340c2fd12458c6ce69374a7db75167b1
SHA5121644ec57f0b0a1c362cc88fd3e33086fdbc81f6599590fec297c813b399c564e5daaca0452e4cc9d592f083951059ef91213e80c33eed191f0d14894623695e9
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Filesize
8KB
MD5b0fe74719b1b647e2056641931907f4a
SHA1e858c206d2d1542a79936cb00d85da853bfc95e2
SHA256bf316f51d0c345d61eaee3940791b64e81f676e3bca42bad61073227bee6653c
SHA5129c82e88264696d0dadef9c0442ad8d1183e48f0fb355a4fc9bf4fa5db4e27745039f98b1fd1febff620a5ded6dd493227f00d7d2e74b19757685aa8655f921c2