General
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Target
Windows-Security.exe
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Size
502KB
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MD5
7cf5612c71291237673b8a72f29fe3ec
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SHA1
bc2392ab38de370be91e0c50d6d53c2d73617e78
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SHA256
2cd8c0e0c81ab9c1acac02b654faca5d8646c344e686ee4ac4f8b15853267caa
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SHA512
27607bb265e0f256df1e7cdf85f1d875ea9a566a7bfb6cf02b1441e28373a2b5f8165c818ff5dcd990afb830403ce3532578c6a18496dad9dce762c5e864e41a
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SSDEEP
6144:0TEgdc0YyXAGbgiIN2RSBAnRjJmyGb9r5Etqg+yw4UUcESOb8F9LaOQygV36cTRE:0TEgdfYIbgMRjJCK4NywaipFrQhkcd0
Malware Config
Extracted
quasar
1.4.0
CoffeeShop
10.20.0.8:4782
c479c814-03fd-4013-bff8-d8e1c85d0acd
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encryption_key
7CFB7A44F8EBBCC3E8AA4457F6F29ED4F4C89CFA
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install_name
WindowsSecurity.exe
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log_directory
Logs
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reconnect_delay
3000
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startup_key
Windows Security 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 Windows-Security.exe
Files
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Windows-Security.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: 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