General
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Target
aaaa.exe
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Size
3.1MB
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MD5
7e70b9bb34b1a42cc1a00839f691551e
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SHA1
ea158e6eda66116dfd5f119359f29b38413c6c5b
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SHA256
0f625db7dc4354fac55dd6b4232f6ddf4d1852d8876a293f613c4db846827544
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SHA512
a3ab1d10f92d916613852c6465bc99c799298b4295386ebb3eab442fe7ff8a50d9120f62fb47b5286d3c81128296a50949e936fe778456e3dc38ef2ec588d538
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SSDEEP
49152:2vfI22SsaNYfdPBldt698dBcjHzskd1vjLoGWt/LTHHB72eh2NT:2vw22SsaNYfdPBldt6+dBcjHzskHo
Malware Config
Extracted
quasar
1.4.1
Office04
aceecfe-54332.portmap.host:54332
a05901d8-e554-46df-b075-6e7b289aa30e
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encryption_key
8B919D2B8267D63C06558D84398A4F9D7BEDA998
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install_name
System32.exe
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log_directory
Logs
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reconnect_delay
3000
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startup_key
Runtime Broker
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subdirectory
System Files
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 aaaa.exe
Files
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aaaa.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