General
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Target
Cyber-Security Nuker (UPDATED).exe
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Size
3.1MB
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MD5
ac73e69fc419907a58784fd50471168d
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SHA1
c936621828f889a8123f6057eb66fc38ebd6f293
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SHA256
371530ba596376ff7fd76425f681d102ab2d171675620070035cbb0e1d1a0516
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SHA512
74416db9fef10e50ab5acae785fbd005ecf16ce94022eb8a7d18d3f1bfc23242e7b5a180d6ff825281ae64fc1df513040ac87be7cb79060df96ca609e78b030e
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SSDEEP
49152:rvyI22SsaNYfdPBldt698dBcjHbdIR9karHNoGdjKTHHB72eh2NT:rvf22SsaNYfdPBldt6+dBcjHC97
Malware Config
Extracted
quasar
1.4.1
Office04
192.168.68.67:4782
dcb0af0e-4f78-426b-9489-43ea356dc0f7
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encryption_key
0807120B930C7C14B2B5A7F6550477313E81C7B9
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install_name
Client.exe
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log_directory
Logs
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reconnect_delay
3000
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startup_key
Quasar Client Startup
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subdirectory
SubDir
Signatures
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Quasar family
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Quasar payload 1 IoCs
Processes:
resource yara_rule sample family_quasar -
Unsigned PE 1 IoCs
Checks for missing Authenticode signature.
Processes:
resource Cyber-Security Nuker (UPDATED).exe
Files
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Cyber-Security Nuker (UPDATED).exe.exe windows:4 windows x86 arch:x86
f34d5f2d4577ed6d9ceec516c1f5a744
Headers
DLL Characteristics
IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE
IMAGE_DLLCHARACTERISTICS_NX_COMPAT
IMAGE_DLLCHARACTERISTICS_NO_SEH
IMAGE_DLLCHARACTERISTICS_TERMINAL_SERVER_AWARE
File Characteristics
IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_32BIT_MACHINE
Imports
mscoree
_CorExeMain
Sections
.text Size: 3.1MB - Virtual size: 3.1MB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.rsrc Size: 3KB - Virtual size: 2KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.reloc Size: 512B - Virtual size: 12B
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ