General
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Target
VixenCleaner.exe
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Size
3.1MB
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MD5
e4789e51a6a2854beea712331537fd80
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SHA1
b630931c2290b4f501a832ea58a27ea06ab9c003
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SHA256
d9f18de935fdc0ca289555f9cbb23084c4bb85267368d267cc2830cd5b67bb5b
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SHA512
812271941703b1872866294a7f0ed1ecc601cd76a2df4e46294600561861dd44acf642ae7e2e8835f1bc878ca965b49e1cd3208f4951bcf6891bd0364816ff85
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SSDEEP
49152:rvqI22SsaNYfdPBldt698dBcjHElDJERHZk/OgKoGdNYrTHHB72eh2NT:rvH22SsaNYfdPBldt6+dBcjHElDwZ
Malware Config
Extracted
quasar
1.4.1
Office04
arnzbo-35424.portmap.host:35424
7291abcf-1856-4b2d-a54d-00549dcd492b
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encryption_key
B879E029304680D26DE21B59F7B2EB04A7C2F35F
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install_name
services32.exe
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log_directory
Logs
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reconnect_delay
3000
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startup_key
Update
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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 VixenCleaner.exe
Files
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VixenCleaner.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