Behavioral task
behavioral1
Sample
20240521bf838e8ca2f12d922652714032ac8fb0cryptolocker.exe
Resource
win7-20240508-en
Behavioral task
behavioral2
Sample
20240521bf838e8ca2f12d922652714032ac8fb0cryptolocker.exe
Resource
win10v2004-20240426-en
General
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Target
20240521bf838e8ca2f12d922652714032ac8fb0cryptolocker.exe
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Size
95KB
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MD5
bf838e8ca2f12d922652714032ac8fb0
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SHA1
3e022a2ecb674f02644b73e7d0b876399bee7e71
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SHA256
ee8a26d3cf4927ecdb9dc74a57b2a67cc7a1bc306fd73d7dd5bba09a910ed139
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SHA512
6d5bd5244f3d7046838b16a82212a9d6fe1543c0586f000749318c2c3b2ef9274942c0d71fef8e3739386b92c45a5abb7c3c3ac73f9a1e218f4c565caac28982
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SSDEEP
1536:qkmnpomddpMOtEvwDpjJGYQbN/PKwNgp0+h:AnBdOOtEvwDpj6zG
Malware Config
Signatures
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Processes:
resource yara_rule sample upx -
Unsigned PE 2 IoCs
Checks for missing Authenticode signature.
Processes:
resource 20240521bf838e8ca2f12d922652714032ac8fb0cryptolocker.exe unpack001/out.upx
Files
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20240521bf838e8ca2f12d922652714032ac8fb0cryptolocker.exe.exe windows:5 windows x86 arch: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:5 windows x86 arch: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