Behavioral task
behavioral1
Sample
Update.exe
Resource
win7-20240221-en
General
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Target
Update.bat
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Size
4.0MB
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MD5
cecea254dded0c740991d97626265f07
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SHA1
2652dfc88b52295290586d2dc87c22ccbdb185c2
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SHA256
08638752e1338dcc9c872a83284acd4ccb9a1be4741c4927ee553c89407b27ad
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SHA512
5ebea428024ea921a0e6d9fa9d5b29a8b0f81e639b423c8d8c41647f13379cba5ae072e918955b8889dc37aedd8a3e7b668880a57162d8934196702edd200c11
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SSDEEP
98304:mnf+y2FqZaVmN+PqlhU//vlL1YP5oj17gdnpR:k0Z1Oc1Az
Malware Config
Extracted
quasar
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reconnect_delay
5000
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 Update.bat
Files
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Update.bat.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: 4.0MB - Virtual size: 4.0MB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.rsrc Size: 3KB - Virtual size: 3KB
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