General
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Target
Client-built.exe
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Size
3.1MB
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MD5
115b3ecdeb0aaffe00e90d5cc3c51a88
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SHA1
24c414a2fe724d6f5310a757c5fa6f97fe61d75b
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SHA256
7a20c6e0574d36d2d972450002eff9f226351ef2d594be1f80f33b7502649dd0
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SHA512
872fa8e3839c8dd54faf7be7e12f7ae89ac6bed8a7fbe0fd5df8fc66e98f32ed2ed7c4446c406fade7214ccc4cc869c094e1cf0f4dad472c30f0493f165aa6e7
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SSDEEP
49152:LvyI22SsaNYfdPBldt698dBcjHgxDEDwNk/JxhoGdsTHHB72eh2NT:Lvf22SsaNYfdPBldt6+dBcjHgxeT
Malware Config
Extracted
quasar
1.4.1
Office04
45.88.91.31:4782
67eb7beb-85a5-459d-aba7-8e55a1344249
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encryption_key
18A3C5CC053BEC5C80BD4C5011E5C6BF640A466A
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install_name
Chrome.exe
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log_directory
Logs
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reconnect_delay
3000
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startup_key
Windows Security Notifications
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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