Behavioral task
behavioral1
Sample
Client-built.exe
Resource
win7-20240221-en
General
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Target
Client-built.exe
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Size
3.3MB
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MD5
eff096752ef1895d626f570a154c38a2
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SHA1
ae2c737e15d12d830220bae198b72717422d70d4
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SHA256
46297c4c0a1e8dcbffcc89326acc44e75720a62569242a804be88ea915fe4c8e
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SHA512
1c0cba459290f89874adab22697c62d9ebe15f41c68b2efa0d004a9e12b1cd4676480e35a04a3dbe9e4cdec59cbc7a2f1e7b5b30da856bf16052c8f958c8a52d
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SSDEEP
49152:rvBt62XlaSFNWPjljiFa2RoUYInlDkE2Hqk/+FWoGd++THHB72eh2NTfZqS:rvr62XlaSFNWPjljiFXRoUYInlDLEO
Malware Config
Extracted
quasar
1.4.1
Office01
198.7.62.204:4782
02b9c972-8b55-4d55-b7c4-09a1f00ff400
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encryption_key
5BF0703F288C43118835CAF4D1A6879C29016FB3
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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
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: 150KB - Virtual size: 150KB
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