General
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Target
Client-built.exe
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Size
3.1MB
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MD5
d7ec9eb9526d50e9c789721d4810573f
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SHA1
4bf49edc9dc4b7874e184bc9da076d60b18ce5a0
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SHA256
811d675d1d10e959f6e3ccc53781cbfbc09e410d3e289f6506414e6b014d1f50
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SHA512
7e521edcef37b4d62289db66f8d186a4d88fd9dd7b0f8c806958e6de22c32f7c19c7c1751dfe87aa7f8bc19bd40c1ad45a5361c07d635fb11d370614f614932b
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SSDEEP
49152:PvAG42pda6D+/PjlLOlg6yQipVu6RJ6PbR3LoGd9THHB72eh2NT:PvD42pda6D+/PjlLOlZyQipVu6RJ6h
Malware Config
Extracted
quasar
1.4.1
Office04
https://stable-notably-hound.ngrok-free.app:4782
c081fec6-ee48-4448-b981-5f88e601e91e
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encryption_key
A5F0EE2DBE7A3009387617912AFB48C127E2B576
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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