Behavioral task
behavioral1
Sample
99499dcd8721ed36fbaffc3f36ddaf78_cryptolocker_JC.exe
Resource
win7-20230824-en
Behavioral task
behavioral2
Sample
99499dcd8721ed36fbaffc3f36ddaf78_cryptolocker_JC.exe
Resource
win10v2004-20230703-en
General
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Target
99499dcd8721ed36fbaffc3f36ddaf78_cryptolocker_JC.exe
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Size
91KB
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MD5
99499dcd8721ed36fbaffc3f36ddaf78
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SHA1
72ddd91e572a2ca44fd7731ddca5cc9321a41989
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SHA256
eb3f0a21d3a3e14efeb8dc05cb0e4246153884bcab21ccca7ebe75fbbd1c540c
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SHA512
50544e31e2caee229b3086442ae2960658524b3586d5a1a5819098fda632fbe436d1d07252b492f8fd9b743b6ecbb7e5390d73025dce9c8b1cf975cb7269be67
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SSDEEP
1536:qkmnpomddpMOtEvwDpjJGYQbN/PKwNgp+ofE:AnBdOOtEvwDpj6zL
Malware Config
Signatures
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resource yara_rule sample upx -
Unsigned PE 2 IoCs
Checks for missing Authenticode signature.
resource 99499dcd8721ed36fbaffc3f36ddaf78_cryptolocker_JC.exe unpack001/out.upx
Files
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99499dcd8721ed36fbaffc3f36ddaf78_cryptolocker_JC.exe.exe windows x86
Headers
File Characteristics
IMAGE_FILE_RELOCS_STRIPPED
IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_LINE_NUMS_STRIPPED
IMAGE_FILE_LOCAL_SYMS_STRIPPED
IMAGE_FILE_32BIT_MACHINE
Sections
UPX0 Size: - Virtual size: 32KB
IMAGE_SCN_CNT_UNINITIALIZED_DATA
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
UPX1 Size: 10KB - Virtual size: 12KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.rsrc Size: 11KB - Virtual size: 12KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
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out.upx.exe windows x86
Headers
File Characteristics
IMAGE_FILE_RELOCS_STRIPPED
IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_LINE_NUMS_STRIPPED
IMAGE_FILE_LOCAL_SYMS_STRIPPED
IMAGE_FILE_32BIT_MACHINE
Sections
.text Size: 11KB - Virtual size: 11KB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.rdata Size: 1KB - Virtual size: 1KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.data Size: 1024B - Virtual size: 1KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.rsrc Size: 11KB - Virtual size: 10KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.reloc Size: 1024B - Virtual size: 536B
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ