General
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Target
Client-built.exe
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Size
3.1MB
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MD5
82c128ff06c769276e959ef2e0435a98
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SHA1
426e40df051e213c513de2137b6d956f5bfe8396
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SHA256
c0dab721d866a195e277db6b0ccbe1f5b014e56f27a7a73e6f61cd6d22dd47c6
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SHA512
b82a61631719d542e0f159d643409d23d01946565e7598703de0eb9783011d9ce5b2abe50de570ecbe38573f1490aae927173bbc74426997f8e6356d71ba961c
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SSDEEP
49152:uvAG42pda6D+/PjlLOlg6yQipVXgbRJ6kbR3LoGdqlTHHB72eh2NT:uvD42pda6D+/PjlLOlZyQipVwbRJ6u
Malware Config
Extracted
quasar
1.4.1
Office04
https://stable-notably-hound.ngrok-free.app/:443
628470c9-2393-45af-9798-10641bcd6445
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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