General
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Target
working.exe
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Size
3.1MB
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MD5
42134852fc267860238e9fcb89b299c7
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SHA1
ecbf2bc2d1471810324db6db5fc5451e37a62462
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SHA256
14f424deb1ad24811c0a55708c0f6f6d640ede1920e498f867ab037cd50c64fb
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SHA512
347b67d0baf389c3f1e2b074e3ca31ffc7c126319c3c2511806286f4762b8b46ccdd41edc440503713ae1e19c82cf0f8cda03316c43240e254381d64e374f952
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SSDEEP
49152:3vDI22SsaNYfdPBldt698dBcjHkdKLoGdJ7THHB72eh2NT:3v822SsaNYfdPBldt6+dBcjHkd05
Malware Config
Extracted
quasar
1.4.1
NULL
techfor1-59332.portmap.host:59332
586f1c75-c539-4d67-8068-3be05d43c9e2
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encryption_key
255E81AED7D0583331724823DAD92535F6637953
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install_name
Client.exe
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log_directory
Logs
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reconnect_delay
3000
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startup_key
AntiVirus
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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 working.exe
Files
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working.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