Behavioral task
behavioral1
Sample
2024-04-03_d6e0ac2dad377548df7a1bc100552f83_virlock.exe
Resource
win7-20240319-en
Behavioral task
behavioral2
Sample
2024-04-03_d6e0ac2dad377548df7a1bc100552f83_virlock.exe
Resource
win10v2004-20240226-en
General
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Target
2024-04-03_d6e0ac2dad377548df7a1bc100552f83_virlock
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Size
164KB
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MD5
d6e0ac2dad377548df7a1bc100552f83
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SHA1
abf37bb9d34e27907c1caf2f32a4fa74a839fb75
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SHA256
4b55af0b4dc465f8602b815562f7ee3373eae6a4d8e840ffa3f3d5ebdc4cd57e
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SHA512
07cfb1ec1784ff21498aa3144139236d9afac2c6f1ae3443bf2a329d194e5b9dcd0dd840247a0425c7c2f3553cad58173c436013f5b4fcb383702fd4cc3516d5
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SSDEEP
3072:/WjS5wmhTYXuQ+jsWQvhZ4aSqziwPhR2TdUyhY/H4sjDf8oyQZiLeBcxuyQ2pu0n:/u78YXuQ+UfdjsY/YsjDf8TQPSK2k0e4
Malware Config
Signatures
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UPX dump on OEP (original entry point) 1 IoCs
resource yara_rule sample UPX -
resource yara_rule sample upx -
Unsigned PE 2 IoCs
Checks for missing Authenticode signature.
resource 2024-04-03_d6e0ac2dad377548df7a1bc100552f83_virlock unpack001/out.upx
Files
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2024-04-03_d6e0ac2dad377548df7a1bc100552f83_virlock.exe windows:4 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: 64KB
IMAGE_SCN_CNT_UNINITIALIZED_DATA
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
UPX1 Size: 159KB - Virtual size: 160KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.rsrc Size: 4KB - Virtual size: 8KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
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out.upx.exe windows:4 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: 205KB - Virtual size: 204KB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.rsrc Size: 4KB - Virtual size: 4KB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE