Behavioral task
behavioral1
Sample
1c3f6fdf457783325a5335780144cf45.exe
Resource
win7-20220414-en
General
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Target
1c3f6fdf457783325a5335780144cf45
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Size
534KB
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MD5
1c3f6fdf457783325a5335780144cf45
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SHA1
89385be28336082cd95cf5bf11dccb2f4b60a9f0
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SHA256
b443a89281aa4bb8d955cb3f2b34208332cb01243602f77a4dc323237e069455
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SHA512
15bdb064e65867e49e41943a95ed03214df8a0a4804b03515947e101be99317f385e9b94516fbcd5bafaaf0deb57a1a3e05f54bf5e042b38c16a1231ab3c7806
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SSDEEP
6144:y8fGZBIgrx8kFYLTiMkbLRZvM4x9cV5tObYIuiuA28RWbQXqZQKYjp5vVDGy3V8X:6Px7FYPiM8BwV5tyT/2g2LbYjbvVi7
Malware Config
Extracted
quasar
2.1.0.0
Office04
aare.linkpc.net:2121
VNM_MUTEX_ms1jmUFok04yY1Luqj
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encryption_key
ShKJoA2iFEqsSE6ieT8z
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install_name
Client.exe
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log_directory
Logs
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reconnect_delay
0
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startup_key
Venom Client Startup
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subdirectory
SubDir
Signatures
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Contains code to disable Windows Defender 1 IoCs
A .NET executable tasked with disabling Windows Defender capabilities such as realtime monitoring, blocking at first seen, etc.
resource yara_rule sample disable_win_def -
Quasar family
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Quasar payload 1 IoCs
resource yara_rule sample family_quasar
Files
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1c3f6fdf457783325a5335780144cf45.exe windows 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: 531KB - Virtual size: 531KB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.rsrc Size: 2KB - 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