Behavioral task
behavioral1
Sample
Client-built.exe
Resource
win7-20240704-en
General
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Target
Client-built.exe
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Size
3.3MB
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MD5
7021b44ffa619a2a286dd9bd55d1e321
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SHA1
de69ec28f445e6c47b1d2f4440465f3ffc2df174
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SHA256
fd96603f9b5aa63021f7bbf8cb6aa320154b43f53c62ddeb011a395327c6093e
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SHA512
546909a07d8e229c0510c249c4b31c78d699a31130e9933ecc03cc2a1b4a7778bbcb872668aab8575050fe4b6c72715164f290a368dd6471e1c492393cf04f13
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SSDEEP
49152:G6LFXL5Z8hlPKxXavFTu9sHMI2jixTHHB72eh2NT1:G6p5Z8hlPKxXavFT+ssYc
Malware Config
Extracted
quasar
1.4.1
SKIDS
147.185.221.22:6712
d1acafd6-31e9-4a2f-a5a8-7043dfc62d60
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encryption_key
5678253D7FFD68D83D55A584486F1015D2B1BC30
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install_name
Windows Host Process.exe
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log_directory
Windows-Logs
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reconnect_delay
3000
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startup_key
Windows Host Process
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subdirectory
Windows
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: 179KB - Virtual size: 179KB
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