Behavioral task
behavioral1
Sample
2klz.exe
Resource
win7-20241010-en
General
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Target
2klz.exe
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Size
3.1MB
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MD5
01cb0e497f40e7d02f93255475f175e1
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SHA1
98c779497d6514b91cd1410f627a5320f6b3eab5
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SHA256
15893230cadb8c8fba530903bc2a7e5cb4da78c00d40ea9473963455978c0f95
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SHA512
fc81504089f520935d95e98ea867faf3dcc44b2399c418fea95f193c45584d72730868ce4362beef4adc5f9a89c008da1fc7a529a35a6cc7803d0ca15f386ef9
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SSDEEP
49152:TvalL26AaNeWgPhlmVqvMQ7XSKKGRJ69bR3LoGdEMgTHHB72eh2NT:TvCL26AaNeWgPhlmVqkQ7XSKKGRJ6PU
Malware Config
Extracted
quasar
1.4.1
Office04
Extazz24535-22930.portmap.host:22930
89f58ee5-7af9-42de-843f-2a331a641e3f
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encryption_key
CD4F349DEB46AEE10C2FE886E5B2BD7A766723CE
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install_name
2klz.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 2klz.exe
Files
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2klz.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