General
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Target
Client-built.exe
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Size
3.1MB
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MD5
eb2478815303c53967a5bfc532c2d512
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SHA1
3065779138ab558a344134cfeceed0912aa4b92e
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SHA256
712e51cdf1736e0858dab0a8c2735f5b47f6686001a8f6151864465da175f227
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SHA512
100d1febb620244c87d446231da6d8f1820929515823fa25a67d124c1f007707bb13c0642e44c28c1669750cd65e32a47ffbe6aee3218340347858e5120c190e
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SSDEEP
49152:uvyY52fyaSZOrPWluWBuGG5g5h0yI1PhSvJAyoGdSTHHB72eh2NT:uvH52fyaSZOrPWluWBDG5g5h6hM
Malware Config
Extracted
quasar
1.4.1
Office04
10.0.0.1:4782
74b9fe62-878c-4126-a9fc-f1c64e7fdb1d
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encryption_key
747FBDB14A66689832324CF4CBD2540935454C08
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install_name
Client.exe
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log_directory
Logs
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reconnect_delay
1
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startup_key
discord
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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