Behavioral task
behavioral1
Sample
Client-built.exe
Resource
win7-20240705-en
General
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Target
Client-built.exe
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Size
3.4MB
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MD5
a1c467f879dbc93181bdb764295f2833
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SHA1
5b2f368bea56c9934cbd5299e12cc0813db24b6d
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SHA256
ff88b45131b4f2551b04690ae045b6f984280a31cfc4009d5f99b32bef69a651
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SHA512
9aeeb28d3a3394f77306fa96eecb025adb3ec0250b47751b685c6e6a2fcf92cbc472a34ef3da176e8a9c92029ca4102c3da58bad12d7cd725f899225a4fe8fe0
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SSDEEP
49152:cmEnyhcFEEfm1CW2tQlmcX6eu2efRTHHB72eh2NTfDW:cmLhcSEfm1CW2tQlmcX6/4
Malware Config
Extracted
quasar
1.4.1
skid
147.185.221.20:18563
147.185.221.20:9835
8c5e43cd-634d-4936-adda-ab19ce84f977
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encryption_key
9E968F05BD874BA1BE086FD1774A027473823F49
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install_name
Windows Host Process.exe
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log_directory
WindowsLogs
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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: 215KB - Virtual size: 215KB
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