General
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Target
Client-built.exe
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Size
3.1MB
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MD5
6ce24e7a1a552cf2bb5312453e9d6f2b
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SHA1
ece1c2ad510d47b92c71a5d5621232664d046e78
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SHA256
e4c44648d9bf079895414fe31e727a3c75dfaca93a06c271f50b61ce49337674
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SHA512
81b2baf9d4585f481bcb423b8b578c9e7b9509a6bcaaaaff977d52a550d8a5897b37f944fc327fd5ea74eb214012f0724670172f488c0dbab4d3ece442b31aa3
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SSDEEP
49152:SvWI22SsaNYfdPBldt698dBcjHnVRJ6IbR3LoGdLTHHB72eh2NT:Sv722SsaNYfdPBldt6+dBcjHnVRJ6i
Malware Config
Extracted
quasar
1.4.1
KDOTCrypt
forq.share.zrok.io:7000
417ef71d-ad1d-49a7-bc17-ae3b952a30dc
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encryption_key
92470F4731518ABFA77DC89068544FB7E7B7C459
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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
resource yara_rule sample family_quasar -
Unsigned PE 1 IoCs
Checks for missing Authenticode signature.
resource Client-built.exe
Files
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Client-built.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