General
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Target
fnspoofer.exe
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Size
3.1MB
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MD5
21b907bacd5fdc5145551838d36b7b25
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SHA1
fbba756fc6c15cfc876258dfd87805dd272e05e0
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SHA256
c9bb7cc2ed308ddb134f1886cf907f0b8d81ee1ef4c082bbd2df191780b42f09
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SHA512
f9f60f859fd9f49ddc1da51cb79688c7d1621083560fbfda5db0b233f17a205f01d637b8c013b04920e1353a948fb4d7852c7dbe7eb334b1f80a3df7f1891734
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SSDEEP
49152:PvCI22SsaNYfdPBldt698dBcjHOXmYGx23x0kCJLoRd4ITHHB72eh2NT:PvP22SsaNYfdPBldt6+dBcjHwmYG9
Malware Config
Extracted
quasar
1.4.1
Office04
10.0.0.142:4782
1d4a9ce9-fdc9-4930-9350-5f07426eae04
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encryption_key
2A4BCBA1E703FC486ACC215438D50562D13C6BF6
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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
Quasar Client 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 fnspoofer.exe
Files
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fnspoofer.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