Behavioral task
behavioral1
Sample
5b5e82e79c52452b2d03a4fa83b95bbeec8a4b1afd97edd9999a77d26f5488b4.exe
Resource
win7-en-20211208
General
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Target
5b5e82e79c52452b2d03a4fa83b95bbeec8a4b1afd97edd9999a77d26f5488b4
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Size
534KB
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MD5
cfd9c6e3328e8553ae573a458850224e
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SHA1
b39b8f1443a310f5cc6bb8559ca1194aba9f9b48
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SHA256
5b5e82e79c52452b2d03a4fa83b95bbeec8a4b1afd97edd9999a77d26f5488b4
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SHA512
b6bf58039e0b673db407a8073b1dd908744bf682ca76883bb01b6a71a20b5d47fc39e0a610c95dab1236345a9412484ae330fb02c05ade3ee7093b15262809bb
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SSDEEP
12288:VPx7FYPiMpuwuaaYTnZwPJNt+qBcYsuyt9CD6:VZiPiMp5aY1MNtvBQNtd
Malware Config
Extracted
quasar
2.1.0.0
svchost
narrow-ink.auto.playit.gg:50377
VNM_MUTEX_LYc2mMMFlAV9sQbWDZ
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encryption_key
RlSxUty7h5rPz7eaEnn4
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install_name
svhost.exe
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log_directory
Logs
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reconnect_delay
3000
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startup_key
svchost
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subdirectory
svhost
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.
Processes:
resource yara_rule sample disable_win_def -
Quasar Payload 1 IoCs
Processes:
resource yara_rule sample family_quasar -
Quasar family
Files
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5b5e82e79c52452b2d03a4fa83b95bbeec8a4b1afd97edd9999a77d26f5488b4.exe windows x86
f34d5f2d4577ed6d9ceec516c1f5a744
Code Sign
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