Behavioral task
behavioral1
Sample
Client-built.exe
Resource
win7-20240903-en
General
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Target
Client-built.exe
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Size
3.2MB
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MD5
12bae2d19de4df6c0325e70c73b5224f
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SHA1
e5ca184f49b3cbfb817315dff623aefe3c44fe08
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SHA256
a9b4c1d130aaadee170d4def45d3b73e26847c38e1ad6bbb05589953c2016bdb
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SHA512
2666bb29e7f676e2a9e5a2e4bb610ad589ecb0a1473ad1ec1154488fd1a3460e0b0ed7f9f4717c56353e0d016fef19964784fd74a2786624adb125126139bce2
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SSDEEP
49152:CvEt62XlaSFNWPjljiFa2RoUYIPGF4qkCeLoGpBeZTHHB72eh2NTc:CvY62XlaSFNWPjljiFXRoUYIP4430
Malware Config
Extracted
quasar
1.4.1
microsoft
193.161.193.99:25170
06cb3c8b-d800-42d6-af01-12c4e1f138b0
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encryption_key
95C77D90C8A49F5740548C8A0A430C41732B639C
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install_name
runtime.exe
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log_directory
Logs
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reconnect_delay
3000
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startup_key
Runtime
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 Client-built.exe
Files
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Client-built.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: 68KB - Virtual size: 68KB
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