Behavioral task
behavioral1
Sample
Client-built.exe
Resource
win7-20231020-en
Behavioral task
behavioral2
Sample
Client-built.exe
Resource
win10v2004-20231020-en
General
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Target
Client-built.exe
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Size
3.1MB
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MD5
0b48348f248ad878bb192e62b8b6c06d
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SHA1
5977f8e9b936da3ab5e15caa71a5f5aa7d6df889
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SHA256
e119c958afe99b8ac81ea6dcf3e8eedc94cd3eacda7e4cc797bc45f27988ae4b
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SHA512
c46175dff9faa852a011e190bb5ee46c2dd1bc4d08b8f65a5dbb83ea9bcd301e357260093c006311c3d78f2870c637432cf39aad37e7817ec1e02d75f805b041
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SSDEEP
49152:Gv+lL26AaNeWgPhlmVqvMQ7XSKjztshcarNuoGduV3THHB72eh2NT:GvuL26AaNeWgPhlmVqkQ7XSKv+h+S
Malware Config
Extracted
quasar
1.4.1
Infected test
awoware.ddns.net:4782
a46df2cf-6f2e-4cf5-9732-40029ae42fb8
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encryption_key
692531BB288025573CF8BB036096FEB1D95ACA2B
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install_name
WinSS.exe
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log_directory
WSSErrorReporting
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reconnect_delay
3000
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startup_key
SystemNativesSS
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subdirectory
WindowsServerServices
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
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