Analysis
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max time kernel
120s -
max time network
118s -
platform
windows7_x64 -
resource
win7-20240903-en -
resource tags
arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system -
submitted
26-12-2024 20:20
Behavioral task
behavioral1
Sample
84f5c1a7f31e520eaf94c9c224f53adf7349f882539f359cd3955d33eedd1565N.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
84f5c1a7f31e520eaf94c9c224f53adf7349f882539f359cd3955d33eedd1565N.exe
Resource
win10v2004-20241007-en
General
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Target
84f5c1a7f31e520eaf94c9c224f53adf7349f882539f359cd3955d33eedd1565N.exe
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Size
29KB
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MD5
aa166d110350b18b3473691623cf4e60
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SHA1
a5f98495f903ad2dd965b590235422739ae54fe2
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SHA256
84f5c1a7f31e520eaf94c9c224f53adf7349f882539f359cd3955d33eedd1565
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SHA512
a4b791b13204a6ebae40868bf89cd5a7f68d5dbd2749b04fa1ff8c13d8abc42fb27720705da792df393007fd6f59f48d4b8b2f56b0ec59e56b78904d9f431b55
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SSDEEP
768:AEwHupU99d2JE0jNJJ83+8zzqgTdVY9/krh3:AEwVs+0jNDY1qi/qsrV
Malware Config
Signatures
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Detects MyDoom family 6 IoCs
resource yara_rule behavioral1/memory/1872-16-0x0000000000500000-0x0000000000510200-memory.dmp family_mydoom behavioral1/memory/1872-30-0x0000000000500000-0x0000000000510200-memory.dmp family_mydoom behavioral1/memory/1872-50-0x0000000000500000-0x0000000000510200-memory.dmp family_mydoom behavioral1/memory/1872-52-0x0000000000500000-0x0000000000510200-memory.dmp family_mydoom behavioral1/memory/1872-57-0x0000000000500000-0x0000000000510200-memory.dmp family_mydoom behavioral1/memory/1872-64-0x0000000000500000-0x0000000000510200-memory.dmp family_mydoom -
Mydoom family
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Executes dropped EXE 1 IoCs
pid Process 1684 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" 84f5c1a7f31e520eaf94c9c224f53adf7349f882539f359cd3955d33eedd1565N.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\Services = "C:\\Windows\\services.exe" services.exe -
resource yara_rule behavioral1/memory/1872-0-0x0000000000500000-0x0000000000510200-memory.dmp upx behavioral1/memory/1872-4-0x0000000000220000-0x0000000000228000-memory.dmp upx behavioral1/files/0x0007000000016d9a-7.dat upx behavioral1/memory/1684-10-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral1/memory/1872-16-0x0000000000500000-0x0000000000510200-memory.dmp upx behavioral1/memory/1684-18-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral1/memory/1684-19-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral1/memory/1684-24-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral1/memory/1684-29-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral1/memory/1872-30-0x0000000000500000-0x0000000000510200-memory.dmp upx behavioral1/memory/1684-31-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral1/memory/1684-36-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral1/files/0x0003000000013d08-41.dat upx behavioral1/memory/1872-50-0x0000000000500000-0x0000000000510200-memory.dmp upx behavioral1/memory/1684-51-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral1/memory/1872-52-0x0000000000500000-0x0000000000510200-memory.dmp upx behavioral1/memory/1684-53-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral1/memory/1872-57-0x0000000000500000-0x0000000000510200-memory.dmp upx behavioral1/memory/1684-58-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral1/memory/1684-63-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral1/memory/1872-64-0x0000000000500000-0x0000000000510200-memory.dmp upx behavioral1/memory/1684-65-0x0000000000400000-0x0000000000408000-memory.dmp upx behavioral1/memory/1684-70-0x0000000000400000-0x0000000000408000-memory.dmp upx -
Drops file in Windows directory 3 IoCs
description ioc Process File opened for modification C:\Windows\java.exe 84f5c1a7f31e520eaf94c9c224f53adf7349f882539f359cd3955d33eedd1565N.exe File created C:\Windows\java.exe 84f5c1a7f31e520eaf94c9c224f53adf7349f882539f359cd3955d33eedd1565N.exe File created C:\Windows\services.exe 84f5c1a7f31e520eaf94c9c224f53adf7349f882539f359cd3955d33eedd1565N.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 84f5c1a7f31e520eaf94c9c224f53adf7349f882539f359cd3955d33eedd1565N.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language services.exe -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 1872 wrote to memory of 1684 1872 84f5c1a7f31e520eaf94c9c224f53adf7349f882539f359cd3955d33eedd1565N.exe 30 PID 1872 wrote to memory of 1684 1872 84f5c1a7f31e520eaf94c9c224f53adf7349f882539f359cd3955d33eedd1565N.exe 30 PID 1872 wrote to memory of 1684 1872 84f5c1a7f31e520eaf94c9c224f53adf7349f882539f359cd3955d33eedd1565N.exe 30 PID 1872 wrote to memory of 1684 1872 84f5c1a7f31e520eaf94c9c224f53adf7349f882539f359cd3955d33eedd1565N.exe 30
Processes
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C:\Users\Admin\AppData\Local\Temp\84f5c1a7f31e520eaf94c9c224f53adf7349f882539f359cd3955d33eedd1565N.exe"C:\Users\Admin\AppData\Local\Temp\84f5c1a7f31e520eaf94c9c224f53adf7349f882539f359cd3955d33eedd1565N.exe"1⤵
- Adds Run key to start application
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1872 -
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:1684
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
29KB
MD5917a2ff2093e5a415eab32293eaab457
SHA1db41413db7f64bfac2dbac5f1b979364175099b2
SHA2564b40adf54a07caeff50876a4dd55ba413203f809d97646248ffcafc4d99b8b78
SHA512957d7383035374cec2219f754fb16428093baac36ec9ecdb6fa9ca82cc0202237bdcc0b3719d328555dd06144be030717319f9bfd6153d6700d956a83caf293c
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Filesize
320B
MD55ba594157d7f2f5b7d693312f1340611
SHA1ba592cd2379fbf18108c840e1cb45ca1549ccec0
SHA25621a75506d283033570a76a20f6590d774603883ab36a84836449e46813ce14f4
SHA5126b0730c538d4a5391733fe34e71ce4a23efb2eaebc3944eba1ca320ac29d57a3a7714ff4d82de242461af76e1e12847cfd4aad985898b89cd9e3d6f6eeb8f169
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Filesize
8KB
MD5b0fe74719b1b647e2056641931907f4a
SHA1e858c206d2d1542a79936cb00d85da853bfc95e2
SHA256bf316f51d0c345d61eaee3940791b64e81f676e3bca42bad61073227bee6653c
SHA5129c82e88264696d0dadef9c0442ad8d1183e48f0fb355a4fc9bf4fa5db4e27745039f98b1fd1febff620a5ded6dd493227f00d7d2e74b19757685aa8655f921c2