Behavioral task
behavioral1
Sample
NEAS.2023-09-08_efbb98b229c50a6f6f4db94b22a39ee5_cryptolocker_JC.exe
Resource
win7-20231020-en
Behavioral task
behavioral2
Sample
NEAS.2023-09-08_efbb98b229c50a6f6f4db94b22a39ee5_cryptolocker_JC.exe
Resource
win10v2004-20231023-en
General
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Target
NEAS.2023-09-08_efbb98b229c50a6f6f4db94b22a39ee5_cryptolocker_JC.exe
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Size
91KB
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MD5
efbb98b229c50a6f6f4db94b22a39ee5
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SHA1
b0b4b6b051da1296fad3c31f684407e328ffeb75
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SHA256
76e2b9472296471ce2039d23c1146b5f726b0942914322bdc5a5b75c7c05e357
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SHA512
ebfebf18bf3ed0eaaad3e467d17757f7b4c0dec5c05735f9310c7e506a3ad55c65ece5185bb501bce0350819218d994f556857ff7c15e9c3c8a5d4599ef86077
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SSDEEP
1536:zj+soPSMOtEvwDpj4ktBl01hJl8QAPM8Ho6cRDj9i4RRN:zCsanOtEvwDpjA
Malware Config
Signatures
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resource yara_rule sample upx -
Unsigned PE 1 IoCs
Checks for missing Authenticode signature.
resource NEAS.2023-09-08_efbb98b229c50a6f6f4db94b22a39ee5_cryptolocker_JC.exe
Files
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NEAS.2023-09-08_efbb98b229c50a6f6f4db94b22a39ee5_cryptolocker_JC.exe.exe windows:5 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
IMAGE_FILE_DEBUG_STRIPPED
Sections
UPX0 Size: 20KB - Virtual size: 32KB
IMAGE_SCN_CNT_CODE
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
.imports Size: 1024B - Virtual size: 4KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE