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
3.1MB
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MD5
4c11f56b9a516468535cd9dfb4625554
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SHA1
c85f8a363d0bc4071c82648736d04502a0f77b6e
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SHA256
54f96306329acf69543eafbc220bb617151cf4f6572d05a1d99aa2633134b29f
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SHA512
b525267b0de611e119c141962f9b8a2e054b3f5afa15140d098ca278e468658aac649c19b802076461fc283e7b7a826b146b3a2319e2af635df6eb820fd81e1d
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SSDEEP
49152:tmCk6UTYfYnGJCvFt8lJ6QgeC2eH4THHB72eh2NT:tmsUTyYnGJCvFt8lJ6Qg5
Malware Config
Extracted
quasar
1.4.1
SKIDS
147.185.221.22:6712
4464eb7a-fcd4-46b0-a1b1-9f00f87d96f8
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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: 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