Behavioral task
behavioral1
Sample
Loader.exe
Resource
win7-20240708-en
General
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Target
Loader.exe
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Size
3.1MB
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MD5
6c0cfc9686b74302e726ddcc3252740e
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SHA1
a588ad7e2398448a1587576b1f90c9c59bcd78fc
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SHA256
342c074263edefc48959a9c15cb1cc05046c53a1607728eb6679f9c8303680a0
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SHA512
1e9ae56b2ee6bef507cfd3137616b1ea0ffb98c4e0bd5fdf429fb77d5c6ee475ee9d22edacdc883dd7e0bd2b2b6c0e13c43a55f8cf3c84b229a98f42fa1acc02
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SSDEEP
49152:PvyI22SsaNYfdPBldt698dBcjHE/Ta95fQ7k/tLoGdQTHHB72eh2NT:Pvf22SsaNYfdPBldt6+dBcjHMa1
Malware Config
Extracted
quasar
1.4.1
Office04
192.168.1.51:4782
f27e08a6-ff49-4d45-95d3-6cd8cee7819a
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encryption_key
9E15BDE09B20CFD0A6A2957840462A93B6C4BFD6
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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
Processes:
resource yara_rule sample family_quasar -
Unsigned PE 1 IoCs
Checks for missing Authenticode signature.
Processes:
resource Loader.exe
Files
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Loader.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