Behavioral task
behavioral1
Sample
Client-built.exe
Resource
win10-20240404-en
Behavioral task
behavioral2
Sample
Client-built.exe
Resource
win10v2004-20241007-en
General
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Target
Client-built.exe
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Size
3.1MB
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MD5
58b8b37869465016462b7b14b86d2bb8
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SHA1
b5d31e9f8691153b7716c8b5e40211556a7c5710
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SHA256
cf1f9aa93af680a196f52f46de82e37adf6bc7be50018d3ca3b38d6ff16df2d4
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SHA512
9dc86b3c7a924f86108a0e013ce5859cbc9c60fc61e601378d5f4bca8d593919ccabca336b14205fd696e7b7801eff1f330a342684e488fbf43a951f8ee06b56
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SSDEEP
49152:AvcI22SsaNYfdPBldt698dBcjHVGR16dbR3toGd3THHB72eh2NT:AvR22SsaNYfdPBldt6+dBcjHVGR16J
Malware Config
Extracted
quasar
1.4.1
Traige
Alessandrolol66-30592.portmap.host:30592
45bdc82f-bdfb-446e-af9c-d0a46e53752d
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encryption_key
B11D992865826F9FDFE1488DBCF3B1031C9ED9CB
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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
Windows.Sys
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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