Behavioral task
behavioral1
Sample
Client-built.exe
Resource
win7-20240708-en
General
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Target
Client-built.exe
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Size
3.1MB
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MD5
f6b32504c6e17ce7b4110d0fabeca301
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SHA1
4824b66bb1c6eec5507fb6953a09d43d16c86471
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SHA256
f774a57c36378499db334d0b68aa53fc0f79fa10ae651f79a0ef2f73fd6d88d7
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SHA512
fbb83968342ae645c5934c494c2c48b8e7bd8f22d923c0344909a26204e6b1f002977dcb84dd91de10da731dad026e009e961a8f144765e34904195ec0817c7e
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SSDEEP
49152:KvbI22SsaNYfdPBldt698dBcjHGrRJ6rbR3LoGdRTHHB72eh2NT:Kvk22SsaNYfdPBldt6+dBcjHGrRJ69
Malware Config
Extracted
quasar
1.4.1
Office04
82.49.9.51:4782
49e7b5a4-6fe4-4855-b68c-1fba7121a568
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encryption_key
BF58CF0517AF2BD741F30FED0728FEC9DA104D6D
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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
Processes:
resource yara_rule sample family_quasar -
Unsigned PE 1 IoCs
Checks for missing Authenticode signature.
Processes:
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