Behavioral task
behavioral1
Sample
Linux-ExecutorV2.exe
Resource
win7-20240220-en
Behavioral task
behavioral2
Sample
Linux-ExecutorV2.exe
Resource
win10v2004-20240611-en
General
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Target
Linux-ExecutorV2.exe
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Size
3.1MB
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MD5
95895270e857b736d4c2daa4669b0ca8
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SHA1
4e20b5f0540d54edd4704b63aa15ed2ef779ddec
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SHA256
8874fdd51347fc53db76420c165583b3abb1c6ae433c62cfb5c1577d6babb60d
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SHA512
b8f97a963c3ea1cec95bf32fcafe66f9e0d332050ed51922875fa2decde24cb2b581341ae16d43da73bffba53b7c700f4f5f69e8114b2145e6df25572256227b
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SSDEEP
49152:uvNhBYjCO4Dt2d5aKCuVPzlEmVQL0wvwka7NRJ6NbR3LoGdlTHHB72eh2NT:uvtt2d5aKCuVPzlEmVQ0wvwf7NRJ6f
Malware Config
Extracted
quasar
1.4.1
Linux-ExecutorV2
192.168.100.33:4782
192.168.100.33:1234
d6bdea7c-dce5-4ca6-a0df-84a991576419
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encryption_key
CA2ECEC332246DFF66C142E01B54DC45742DE362
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install_name
Linux-ExecutorV2.exe
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log_directory
Logs
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reconnect_delay
3000
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startup_key
windowsecurity
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subdirectory
Linux
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 Linux-ExecutorV2.exe
Files
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Linux-ExecutorV2.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