General
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Target
nun.exe
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Size
3.1MB
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MD5
dc0387558e4a130726bdca05d94636ab
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SHA1
816a296b33f2b0ec2d5abb6abc87cc55ab418dae
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SHA256
8d8223a9f7265b83029d744c364ec903806feb9ffd284e2b0b6ed083da04bd4a
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SHA512
5293a3b760b371b0ee8d035e25be4151e852c5742f5ae5c025d1ae0eeac655d6c786ba94d9c985dd2a2849362b44a0039baf14e3a3b750c713b7a0e5a226bdad
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SSDEEP
49152:3vyI22SsaNYfdPBldt698dBcjHINj77bR6LoGdGTHHB72eh2NT:3vf22SsaNYfdPBldt6+dBcjHIB7O
Malware Config
Extracted
quasar
1.4.1
Office04
192.168.1.108:4782
762b16a7-c943-4acc-82fa-9218267341e4
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encryption_key
60588B031AB3F753713A86BD228C085945A06CE0
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install_name
TheBeams.exe
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log_directory
Checking
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reconnect_delay
3000
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startup_key
The Beams Startup
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subdirectory
TheBeams
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 nun.exe
Files
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nun.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