Behavioral task
behavioral1
Sample
Client-built.exe
Resource
win7-20240708-en
General
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Target
Client-built.exe
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Size
3.1MB
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MD5
7bd1d7848815dc3affd869c31939d409
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SHA1
d4ac2a12ebfa20eeb1c47eb4d1631f5aa21ede4a
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SHA256
7c70488279560fa6280e6bbb27c0a68b85863b9ed9d4356e14e8342ba969056b
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SHA512
2c89cb0e3bdd5caf32be2892dc665484deb60c8b88d85999b0829bc2070a061c5a5ad63b3545ebb764236acbac3e8cb61acfc9cd98c91463e6ccaaaee3244787
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SSDEEP
49152:Cv7lL26AaNeWgPhlmVqvMQ7XSKu2RJ6xbR3LoGdLoTHHB72eh2NT:CvhL26AaNeWgPhlmVqkQ7XSKu2RJ6T
Malware Config
Extracted
quasar
1.4.1
r1
127.0.0.1:4782
kankan-28536.portmap.host:28536
2d196e6c-1bac-4d16-af44-ce386f64aa29
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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
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: 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