Behavioral task
behavioral1
Sample
cortana.exe
Resource
win10-20231215-en
Behavioral task
behavioral2
Sample
cortana.exe
Resource
win10v2004-20231215-en
General
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Target
cortana.exe
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Size
3.7MB
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MD5
626a207702f7baf4573a89b6e303e7d9
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SHA1
3316bb963cf72347eb14df95220d6df5a9d1ac52
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SHA256
2814d0e896f45fe260842bcd848f4e2c24e9e913009c48b40df798c0e091ed4f
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SHA512
7b474b933ac1a7d3aabe76f795d56a6351516522a172dcf424ef44de5367fb0da4b735d7630c60eff3335ef90407ac11ed96c0c0d10cf570ac84f9200a9ce849
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SSDEEP
24576:kiy8GhI7M2RE+aR5T8wfm+Kmy/uygtLQ2VLmWQU:PG8MsEBR5lNK4zpm
Malware Config
Signatures
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Detect ZGRat V1 1 IoCs
resource yara_rule sample family_zgrat_v1 -
Zgrat family
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.NET Reactor proctector 1 IoCs
Detects an executable protected by an unregistered version of Eziriz's .NET Reactor.
resource yara_rule sample net_reactor -
Unsigned PE 1 IoCs
Checks for missing Authenticode signature.
resource cortana.exe
Files
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cortana.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_LINE_NUMS_STRIPPED
IMAGE_FILE_LOCAL_SYMS_STRIPPED
IMAGE_FILE_32BIT_MACHINE
Imports
mscoree
_CorExeMain
Sections
.text Size: 3.7MB - Virtual size: 3.7MB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.rsrc Size: 4KB - Virtual size: 4KB
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