Behavioral task
behavioral1
Sample
2024-06-24_91f04a8a9bd3b68f6b62479eb915af6f_cobalt-strike_medusa-locker.exe
Resource
win7-20240220-en
Behavioral task
behavioral2
Sample
2024-06-24_91f04a8a9bd3b68f6b62479eb915af6f_cobalt-strike_medusa-locker.exe
Resource
win10v2004-20240611-en
General
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Target
2024-06-24_91f04a8a9bd3b68f6b62479eb915af6f_cobalt-strike_medusa-locker
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Size
678KB
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MD5
91f04a8a9bd3b68f6b62479eb915af6f
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SHA1
fb11c2e6eaedf94675b9a606cff07314a6ba2141
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SHA256
6612271bac6fcdda5e7081ce6777018fad4bb0f32354cb281387a11c851bcc08
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SHA512
7bc3787dcb03149bed5902f3682cfc6afc8eaceaa7c4a9ed4a4ada4b5480bea5f46147732e389fcb3565eaae239f71f3673991fa48ef50cca8ad446e045d7dfb
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SSDEEP
12288:+PJ4UhTYQivI2qZ7aSgLwkFVpzUvest4ZEbjJ4ugP:feTYVQ2qZ7aSgLwuVfstRJ4v
Malware Config
Signatures
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Detects Windows exceutables bypassing UAC using CMSTP COM interfaces. MITRE (T1218.003) 1 IoCs
Processes:
resource yara_rule sample INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM -
Detects command variations typically used by ransomware 1 IoCs
Processes:
resource yara_rule sample INDICATOR_SUSPICIOUS_GENRansomware -
MedusaLocker payload 1 IoCs
Processes:
resource yara_rule sample family_medusalocker -
Medusalocker family
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Unsigned PE 1 IoCs
Checks for missing Authenticode signature.
Processes:
resource 2024-06-24_91f04a8a9bd3b68f6b62479eb915af6f_cobalt-strike_medusa-locker
Files
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2024-06-24_91f04a8a9bd3b68f6b62479eb915af6f_cobalt-strike_medusa-locker.exe windows:6 windows x86 arch:x86
Headers
DLL Characteristics
IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE
IMAGE_DLLCHARACTERISTICS_NX_COMPAT
IMAGE_DLLCHARACTERISTICS_TERMINAL_SERVER_AWARE
File Characteristics
IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_32BIT_MACHINE
Sections
.text Size: 461KB - Virtual size: 460KB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.rdata Size: 178KB - Virtual size: 178KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.data Size: 14KB - Virtual size: 18KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.rsrc Size: 512B - Virtual size: 480B
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.reloc Size: 23KB - Virtual size: 23KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ