Static task
static1
Behavioral task
behavioral1
Sample
CrystalUS.exe
Resource
win7-20231215-en
Behavioral task
behavioral2
Sample
CrystalUS.exe
Resource
win10v2004-20231215-en
General
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Target
f175fcc7b1277b9c2d58256c3aca1fe0810b1937.zip
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Size
370KB
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MD5
0a82d4eda81856f2557bf0130a9ce441
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SHA1
1c9b4c3ef6e28257f2ea4d09fd6fa7716c952aef
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SHA256
b159571a5c041381b9724db770c4e79091fff899c1aecfa0248b9a424d8d3102
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SHA512
40a109bee732db2e16ff28d4c7cfabadd606850b5216293764756d25ff53cb31d9cbf659cd4185c4bb456bdb197a278438c65068f040382803e00a5b5c12335a
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SSDEEP
6144:cMLsUzUpMcGfnKPJoQQnWnHfz/EdFEmGi9GtVBA22GP4m8iaEKMMK1:jLsUiMc+nQZQGzM3tGioBABWsEKMF1
Malware Config
Signatures
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Unsigned PE 1 IoCs
Checks for missing Authenticode signature.
resource unpack001/CrystalUS.exe
Files
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f175fcc7b1277b9c2d58256c3aca1fe0810b1937.zip.zip
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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
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cfg.json
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formats/Arcane.cus
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formats/DCRat.cus
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formats/Default #2.cus
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formats/Default #3.cus
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formats/Default #4.cus
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formats/Default #5.cus
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formats/Default #6.cus
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formats/Default.cus
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formats/Taurus.cus
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formats/WebBrowserPassView.cus