Behavioral task
behavioral1
Sample
System.exe
Resource
win7-20241010-en
General
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Target
System.exe
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Size
3.1MB
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MD5
e80f9a2d968a10ce2bbd655666befe8c
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SHA1
d56125da872bda98b592df56baf7fbfdeff94b6d
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SHA256
95f172a69bb9e7310bf636d76e310ec9603601e488473f2bdfe3c0e7dd2b9667
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SHA512
9bd6e745142143509f64c0239c9e535985c53d5e28ce4fb328f1e4b354c52f081c0545fe80549754a54857338e9b32ac2dfcab5379bca70f05907a55ae10d04c
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SSDEEP
49152:Bvuuf2NUaNmwzPWlvdaKM7ZxTwKKoZ2jmZv9oGuDFTHHB72eh2NT:BvJf2NUaNmwzPWlvdaB7ZxTwJoZ2I
Malware Config
Extracted
quasar
1.4.1
botnet
165.227.31.192:22069
193.161.193.99:64425
193.161.193.99:60470
713051d4-4ad4-4ad0-b2ed-4ddd8fe2349d
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encryption_key
684009117DF150EF232A2EE8AE172085964C1CF0
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install_name
System.exe
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log_directory
Logs
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reconnect_delay
3000
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startup_key
Office
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subdirectory
Winrar
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 System.exe
Files
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System.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