Behavioral task
behavioral1
Sample
Client-built.exe
Resource
win7-20240611-en
General
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Target
Client-built.exe
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Size
3.1MB
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MD5
f4316994f08a3062551aa308f669160f
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SHA1
cb2c96bf851af39ada7f3041b14b83aa9fb355ff
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SHA256
340853b0282187e84e36c2e95f3ed93f9bc8c9ad8df6e8437e4dc0696fba40e8
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SHA512
7da0a14b89a293637971e9707ad5fb2547910a1e1354c708cebfee34f3a524599ea05e0cabb1b32a2bdbffec3912dd219388d4abdee4ebbce27aa0be4b24e9fe
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SSDEEP
49152:/vTlL26AaNeWgPhlmVqvMQ7XSKRRM1JAIoGdh7THHB72eh2NT:/vJL26AaNeWgPhlmVqkQ7XSKRRy
Malware Config
Extracted
quasar
1.4.1
Office04
xwormserver.000webhostapp.com:21
10ef52ec-6b4d-46fc-8885-bdc8684585df
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encryption_key
215F783F6E5FEDF5390342491321109A10A8185F
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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
Quasar Client Startup
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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