Static task
static1
Behavioral task
behavioral1
Sample
FYI.img.exe
Resource
win7-20220414-en
Behavioral task
behavioral2
Sample
FYI.img.exe
Resource
win10v2004-en-20220113
General
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Target
595a0e25fbeb1ee5f3cb649639fd345e0cd0b777a51ff60562151ffc07aa5de9
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Size
820KB
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MD5
666812baf8e775a44dc4b05c5b26c00b
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SHA1
02c46ff04b7e4fad87eb9971fc6b54116230449e
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SHA256
595a0e25fbeb1ee5f3cb649639fd345e0cd0b777a51ff60562151ffc07aa5de9
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SHA512
9520cacffd21c48def31e1a71579426d5d6b7ed9182b1ae02a5a6a8d5248fa7cdb17ef8385e2bbc71ce524653d419a39cef5ceb6e91733c095ff8374a79c9c58
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SSDEEP
24576:B+maEPSxjuSf/KcDXjB3uh+6NdMyB7jCHPNAYgiSm4Pvy:UEPS8SXKcp3uhVNdMyB7jYlAYgiSm4P6
Malware Config
Signatures
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CoreEntity .NET Packer 1 IoCs
A .NET packer called CoreEntity where it has embedded the payload as a BitMap object which is later decrypted.
resource yara_rule static1/unpack001/FYI.img.exe coreentity
Files
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595a0e25fbeb1ee5f3cb649639fd345e0cd0b777a51ff60562151ffc07aa5de9.zip
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FYI.img.exe.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: 865KB - Virtual size: 864KB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.rsrc Size: 103KB - Virtual size: 103KB
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