Behavioral task
behavioral1
Sample
Client-built.exe
Resource
win7-20240508-en
General
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Target
Client-built.exe
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Size
3.1MB
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MD5
975c6ed39d682835148dfd77146c2243
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SHA1
5b097d147810624dafb34a98e96acd734c2705b6
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SHA256
3db4c27d5ca67cd992ef57773d7042eb53574dbe7d8e34c9cde2a42e0405953c
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SHA512
f25038ac9f8714a7a89e0a2be58207754f6ed66feeb6e0d46dc49b2cffdb10f678f32cda3947de70f88b45033c9baa0c14c72ef406ab3ede051b9501471d5b29
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SSDEEP
49152:HvilL26AaNeWgPhlmVqvMQ7XSKYPVxNESEhk/i7LoGdYJTHHB72eh2NT:HvaL26AaNeWgPhlmVqkQ7XSKSxQH
Malware Config
Extracted
quasar
1.4.1
Solara
192.168.0.23:4782
192.168.56.1:4782
1db1cfc2-0b96-4b9e-afd9-8208e6abd265
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encryption_key
41AD0502F025DD3F47720DC4BDEED540F3EAFD12
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install_name
securekerneI.exe
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log_directory
Logs
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reconnect_delay
3000
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startup_key
Update
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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 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: 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