Behavioral task
behavioral1
Sample
Client-built.exe
Resource
win7-20230712-en
General
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Target
Client-built.exe
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Size
3.1MB
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MD5
b07f6e9883c9f82082274426b63d7fe7
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SHA1
4f17964554eb6dfd1377b09ac6c41ad602613c7d
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SHA256
cf5ce793843b34a6ffaafb6437aaab07b74563ff8e5d43523bdfa94d2b604ced
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SHA512
67294daaf40019b0720c89f65dd7405f7b354c6c15ac5109ed5a755d53ef1e1018bf37ec842402b6b59d7578bd98016c3be8554339425ecef083a8cd617b79d5
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SSDEEP
49152:uvvI22SsaNYfdPBldt698dBcjH+HgorBxMDoGd9THHB72eh2NT:uvg22SsaNYfdPBldt6+dBcjH+Aoe
Malware Config
Extracted
quasar
1.4.1
idk
MellowFishy-24901.portmap.host:24901
cd8a2356-995d-4bab-9517-891f8afcb7e7
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encryption_key
0473FAE67FE1717B3EA543D0E389D0C463A3A919
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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
Java
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subdirectory
SubDir
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 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