Static task
static1
Behavioral task
behavioral1
Sample
CrystalUS.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
CrystalUS.exe
Resource
win10v2004-20240226-en
General
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Target
CrystalUS.exe
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Size
809KB
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MD5
4516f5182bcaefb6a8dd7f53ce0c429f
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SHA1
eca27762ec651c3072213262cea7cef198e827e3
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SHA256
577403a4c07eaf6bade5f5ac6165b0ee87a4fcfd2d8e3894a3defdd5e33e9e5a
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SHA512
44646348c6fe6080a8319738eb7a324b3f6a076abf1b38797b52b554121d752c00145d417ad3c0a5246b5e52c7f8e6a0aa99c04a8f946d40908372e01f49d361
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SSDEEP
12288:ilsUCeelhOBEmUeRHyhubiMLnN6fMZTjeVzvEKlT/tZmG:nUYlhkRchubiMbNI1M+/tZmG
Malware Config
Signatures
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Unsigned PE 1 IoCs
Checks for missing Authenticode signature.
resource CrystalUS.exe
Files
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CrystalUS.exe.exe windows:4 windows x86 arch:x86
f34d5f2d4577ed6d9ceec516c1f5a744
Headers
DLL Characteristics
IMAGE_DLLCHARACTERISTICS_HIGH_ENTROPY_VA
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_LARGE_ADDRESS_AWARE
Imports
mscoree
_CorExeMain
Sections
.text Size: 794KB - Virtual size: 794KB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.rsrc Size: 14KB - Virtual size: 13KB
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