Behavioral task
behavioral1
Sample
Client-built.exe
Resource
win7-20220812-en
General
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Target
Client-built.exe
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Size
502KB
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MD5
8b5aa9401c816b35efeeffa7140fe34c
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SHA1
85b1b98a1465ce7187ee3d7e80e577ff97af51e5
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SHA256
e3d9d11c424306c7e8b33325a033dee87e25a5a4dd483446771eabc4e9d52d98
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SHA512
4ef90cc4d34a3a43c9ff01e3a7b99e06bf19faae0a7a8028323f28b2659ca8b575940429040800ae9fb76b58bb681f8f82ee16a1059406447a7406d32aadd550
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SSDEEP
12288:QTEgdfYPbggefhV54UywzBpwa6tFA7Ccd3:lUwNcDywzBpwa6tFvcd3
Malware Config
Extracted
quasar
1.4.0
Renkill
193.149.176.156:8080
e51896b4-9928-4edd-8f19-3d5855d3388f
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encryption_key
936C784DF6BFBCB86D89EDF1DA8425E6D70DCFBB
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install_name
explorer.exe
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log_directory
Logs
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reconnect_delay
3000
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startup_key
Windows Defender
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subdirectory
D3SD
Signatures
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Quasar family
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Quasar payload 1 IoCs
resource yara_rule sample family_quasar
Files
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Client-built.exe.exe windows 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: 498KB - Virtual size: 497KB
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