Behavioral task
behavioral1
Sample
S123.exe
Resource
win10v2004-20250410-en
General
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Target
S123.exe
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Size
3.1MB
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MD5
233a781d28bd3b3a86178c48af135297
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SHA1
5d9938e8066ce9dc37f7028317203fc9fda356f7
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SHA256
8c4edf15b2e0bfaaf67d12a3e17e0d6d314ea1df16965c8c1d7d2b83f3bc1c36
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SHA512
1dff021f0ac95b84633e157d97cde50389a61e55222bde5618812ce94fae10d7e26b0b2eb923c51e1cd664c1a787ffff4e4f988f337ac2af189cf776ce228f72
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SSDEEP
49152:DvbI22SsaNYfdPBldt698dBcjH0VG3admz++oGdTjmZTHHB72eh2NT:Dvk22SsaNYfdPBldt6+dBcjH0G3ayj
Malware Config
Extracted
quasar
1.4.1
test2
118.195.162.44:443
68d5e2b3-4339-4659-a181-0c8f9f98a553
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encryption_key
F5832F3C62E829699663C72111DB268B843C437C
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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 S123.exe
Files
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S123.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