Behavioral task
behavioral1
Sample
Summrs.exe
Resource
win7-20241010-en
General
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Target
Summrs.exe
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Size
3.1MB
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MD5
77d34210e82e24fb0b5adbb1094f272f
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SHA1
bc20888016a83b6628e7ab460e68b0a467bf3bf3
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SHA256
d8f7896edc45702da8a6c984d10fa00d2ea3c73c0fa8b08b689cf89ff1e5cd0e
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SHA512
766f0f97752fd0e63d08474f1d4c32a7ca88854f58d2e59903f2218134136bed45e9fbb6d375fcc3677bca4b95a1aec3e0830e27f510bbf4f88e04e6814f4a04
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SSDEEP
49152:CvgG42pda6D+/PjlLOlg6yQipVSyRJ6hbR3LoGd4jTHHB72eh2NT:Cvj42pda6D+/PjlLOlZyQipVSyRJ6DI
Malware Config
Extracted
quasar
1.4.1
Office04
89.187.179.:4782
185.236.200.245:4782
af4f2a23-513c-4ee2-8078-c3d27d9ee2fb
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encryption_key
1FFE2594933531CEBE3AD34C62F3DC58273CA88E
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install_name
Isass.exe
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log_directory
Fxs-Temp
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reconnect_delay
1000
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startup_key
Quasar Client Startup
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subdirectory
da-DT
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 Summrs.exe
Files
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Summrs.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