Behavioral task
behavioral1
Sample
Client-built.exe
Resource
win10-20240221-en
Behavioral task
behavioral2
Sample
Client-built.exe
Resource
win10v2004-20240221-en
General
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Target
Client-built.exe
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Size
4.0MB
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MD5
8edc923cfeb060db9ab8a75c4595d233
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SHA1
7c571cf0225702cdfba0d2a37926799fab8021bc
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SHA256
fb1e14cfd7d8809b6619503917a73fe24f34c976aa03ff913cf506f363a8f596
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SHA512
9d6a1a6724fa320a849336c688d7eeb5c4e371de5a9892012b47ac6e44828baac3d71f7396e2774a3c5fc80e0069ac55bf2e456c6d71ca29927afc567d9a6cef
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SSDEEP
98304:2nf+y2FqZaVmN+PqlhU//vlL1YVuPKgPSL:00Z1Dr
Malware Config
Extracted
quasar
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reconnect_delay
5000
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: 4.0MB - Virtual size: 4.0MB
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