Behavioral task
behavioral1
Sample
Uni.exe
Resource
win10-20240404-en
Behavioral task
behavioral2
Sample
Uni.exe
Resource
win10v2004-20240426-en
General
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Target
Uni.exe
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Size
409KB
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MD5
32efce8aac700ad0537f0834a2724133
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SHA1
1a771fb73b59381d965f82a1527a5b6f29e7312a
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SHA256
5279df302ea5593455036174afb4b5aa213645e1a39b679fb713e56d6ad6702f
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SHA512
5aaa48270830d3180b61bd9b2b5d79221fdb50fe3615afa7cdd56159a811e7cb29cd2078cac365d54259d7dea94aaaa8d6d6bcca8c5aa10c161412528a7ca220
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SSDEEP
12288:jpiREGJ1UQ4Csy+jxmkCLDwvZ0u+1TnscC2J:9wpJ78mkCLUvZr+hCQ
Malware Config
Extracted
quasar
3.1.5
Office04
runderscore00-25501.portmap.host:25501
$Sxr-enxCg9Guwcx91RRlfm
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encryption_key
ch8Yvy5yMUQU2xogQGGb
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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
Quasar Client Startup
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subdirectory
SubDir
Signatures
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Quasar family
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Quasar payload 1 IoCs
Processes:
resource yara_rule sample family_quasar -
Unsigned PE 1 IoCs
Checks for missing Authenticode signature.
Processes:
resource Uni.exe
Files
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Uni.exe.exe windows:4 windows x86 arch:x86
f34d5f2d4577ed6d9ceec516c1f5a744
Headers
DLL Characteristics
IMAGE_DLLCHARACTERISTICS_HIGH_ENTROPY_VA
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: 405KB - Virtual size: 405KB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.rsrc Size: 2KB - 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