Behavioral task
behavioral1
Sample
Client-built.exe
Resource
win7-20240508-en
General
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Target
Client-built.exe
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Size
3.1MB
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MD5
cabf60cd922c090eab3479a54df85881
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SHA1
2d8cac7f6d34d091fd8b3492db12ed2b03de42e1
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SHA256
aaac0a15c0e347fc8be6933015f8e9293dbaf217a34ce9b57d75de1dd3f6b1af
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SHA512
be7b72cd2aab15a455095677d1ce6b89c2cc7ffa64f20ffb2237f7d4f400af127dfa1ef3211463f4a7b7c6a01615c2187a98d5be01759ed5fef89b7e4de31f34
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SSDEEP
49152:3vaI22SsaNYfdPBldt698dBcjHbIRJ6LbR3LoGdYTHHB72eh2NT:3vX22SsaNYfdPBldt6+dBcjHbIRJ6d
Malware Config
Extracted
quasar
1.4.1
Office04
192.168.43.153:4782
429a52df-3422-4acc-8faa-0966f3bfcf1c
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encryption_key
CCD08F8B971DB48D50069B79D7B2E987CB15BF90
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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