Behavioral task
behavioral1
Sample
Client-built.exe
Resource
win7-20240903-en
General
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Target
Client-built.exe
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Size
3.1MB
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MD5
d6edcd97a141f64fe46289bf6bbf3a8f
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SHA1
8cd43e6311f3b62bfba522c25315d1e737d265e3
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SHA256
d84cb257d1647aaf06f6cb154bc7bdd9e542751d3373dce4986b4a3712deed5d
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SHA512
664fe3111b738f56ab36f27cd01a99386e75193b0bc9cc40782e6480a9117ed0e47f471c27b208d9a8cc5d667f8ccb14627273af87915f8953658a0744443885
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SSDEEP
49152:OvVt62XlaSFNWPjljiFa2RoUYI2jSJ1JZQoGd6THHB72eh2NT:Ovn62XlaSFNWPjljiFXRoUYI2jS4
Malware Config
Extracted
quasar
1.4.1
Office04
192.168.1.132:4782
87a4bbe1-6583-48dd-943b-4f569edd0b04
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encryption_key
AA6FC0D7B31977C5D714222F90C7F94D36193E6F
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install_name
Client.exe
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log_directory
Logs
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reconnect_delay
3000
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startup_key
Discord
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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 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