Behavioral task
behavioral1
Sample
fef8d2b540c3d194ebce0974dfeb3d83_cryptolocker_JC.exe
Resource
win7-20230712-en
Behavioral task
behavioral2
Sample
fef8d2b540c3d194ebce0974dfeb3d83_cryptolocker_JC.exe
Resource
win10v2004-20230703-en
General
-
Target
fef8d2b540c3d194ebce0974dfeb3d83_cryptolocker_JC.exe
-
Size
100KB
-
MD5
fef8d2b540c3d194ebce0974dfeb3d83
-
SHA1
85a7253e61287414cc1869e1d088df6192722a93
-
SHA256
1d2125937e818f5ea783bc8b0480380803039c92067f4dd9c4c58025e9498e45
-
SHA512
caf5752444ce96a9e0955ed477bac6efb351df38ffb434e8e7451e7da2970c6caa8714c006cdfea992a1ce3581307bd9659a8bc305397873ab25e30796407778
-
SSDEEP
1536:qkmnpomddpMOtEvwDpjJGYQbN/PKwNgpQbCJhm:AnBdOOtEvwDpj6zL
Malware Config
Signatures
-
resource yara_rule sample upx -
Unsigned PE 2 IoCs
Checks for missing Authenticode signature.
resource fef8d2b540c3d194ebce0974dfeb3d83_cryptolocker_JC.exe unpack001/out.upx
Files
-
fef8d2b540c3d194ebce0974dfeb3d83_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
-
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