Behavioral task
behavioral1
Sample
Client-built.exe
Resource
win7-20231023-en
General
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Target
Client-built.exe
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Size
3.1MB
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MD5
0e2e0cec87c53c13afb9d06034beb627
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SHA1
db9d315bdeff177f7d6b483cd5efb6128d1863fb
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SHA256
180d61073e3f9bc62520f374b52c93647bc0b86fd189b2618c83c9ec0c8a93d8
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SHA512
89c9be28683957653f4414f4fdb3c8473f0383238e541d9880fabfd7d1a43392133b096bc67ae56b762587ea50a4c8a4e8860c66fb317a8a35256d542becd1a8
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SSDEEP
49152:nv7e821/aQWl8P0lSk3aKA3Z+nPfRJ68bR3LoGdPTHHB72eh2NT:nva821/aQWl8P0lSk3DA3Z+nPfRJ6G
Malware Config
Extracted
quasar
1.4.1
Office04
portfowardingtesting-40506.portmap.host:40506
ratscammers.ddns.net:4782
bb0effb2-e2b8-4d9a-b5f0-ca6974312005
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encryption_key
260BB699D0DD49ED380DB612EB6210356321A9CB
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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