General
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Target
C4Loader.exe
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Size
856KB
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Sample
230403-lx9t7sdh99
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MD5
3b8f84a1a0761f8bab9d6b0a90e6949e
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SHA1
9c758991135d977d2660f1b814b973db0e119efc
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SHA256
2bcbbe13d000426f4be27871e3c472dbf33673551a684229e9234e6387b045e1
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SHA512
3bae19a2a3abddc66faf78cab3caf99aa1988607ca844294d37450a7eb3be2454ae1a4034e38df4dabef63a2f8fd5b9084fccfcaf3d2b72ff5c62cb79bdae2e1
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SSDEEP
3072:HnoTMG2OWGJAez/eyN/09XMT9THz4JHSV0h2sFeJOMkdIGq:HYfAebec09Q0ZwQCGq
Static task
static1
Behavioral task
behavioral1
Sample
C4Loader.exe
Resource
win7-20230220-en
Malware Config
Extracted
aurora
107.182.129.73:8081
Targets
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Target
C4Loader.exe
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Size
856KB
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MD5
3b8f84a1a0761f8bab9d6b0a90e6949e
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SHA1
9c758991135d977d2660f1b814b973db0e119efc
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SHA256
2bcbbe13d000426f4be27871e3c472dbf33673551a684229e9234e6387b045e1
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SHA512
3bae19a2a3abddc66faf78cab3caf99aa1988607ca844294d37450a7eb3be2454ae1a4034e38df4dabef63a2f8fd5b9084fccfcaf3d2b72ff5c62cb79bdae2e1
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SSDEEP
3072:HnoTMG2OWGJAez/eyN/09XMT9THz4JHSV0h2sFeJOMkdIGq:HYfAebec09Q0ZwQCGq
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Modifies security service
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Suspicious use of NtCreateUserProcessOtherParentProcess
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Blocklisted process makes network request
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Downloads MZ/PE file
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Drops file in Drivers directory
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Stops running service(s)
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Executes dropped EXE
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Loads dropped DLL
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Drops file in System32 directory
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Suspicious use of SetThreadContext
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