Behavioral task
behavioral1
Sample
Client-built.exe
Resource
win7-20240611-en
General
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Target
Client-built.exe
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Size
3.1MB
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MD5
7f113430d45982dd16a92095a0734593
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SHA1
7c054a7e0ded31b23b94f59159b47df5e37135dd
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SHA256
bba5ce847c62bb82236b5c5e9469f24d7f8f3d605bfaf4b5c5901b4fad1b84ac
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SHA512
c17264d90431123207abd10998c4f8e068a7fcba7ab9763952741c52eccd80791bc48e2a053eec51499d9c2ae8a7f454f9ab74b0970fc219c57dd49a244753a1
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SSDEEP
49152:/vblL26AaNeWgPhlmVqvMQ7XSKGH4ooGdtOTHHB72eh2NT:/vBL26AaNeWgPhlmVqkQ7XSKGHT
Malware Config
Extracted
quasar
1.4.1
triage
daongochuy.ddns.net:5899
192.168.1.70:5899
f780d9fa-685c-409a-be9a-662a1160ec3e
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encryption_key
DA58166FE3472BA10368FA5F4736C40EA43CDD81
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install_name
winrmt.exe
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log_directory
Logs
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reconnect_delay
3000
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startup_key
Windows Device Manager
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subdirectory
WindowsManager
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