Behavioral task
behavioral1
Sample
skype.exe
Resource
win7-20230621-en
Behavioral task
behavioral2
Sample
skype.exe
Resource
win10-20230621-en
General
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Target
skype.exe
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Size
162KB
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MD5
9028cb092250ffbd30d680986776f555
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SHA1
0370277fdd918ec94b368d8a89306f0c6ae40e82
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SHA256
aa3be435b7f2b02f28c0d9c0f4911ddb5603d060760a18c15e43d08b4bfae3eb
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SHA512
ade07d85e4af25a7827a7da1f6033b6aea5e9c599e22f95ffc72643aff1857f5387cd018424d0b7cd11cfcd5b663c9f1a1985eeb7b973a1c62038cf4b7bf4fd4
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SSDEEP
3072:9VZ/VGS7rN+wF8/noutVa3v7EszT8tmtl1:9V28ofvoSI/HzThtz
Malware Config
Signatures
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resource yara_rule sample upx -
Unsigned PE 1 IoCs
Checks for missing Authenticode signature.
resource skype.exe
Files
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skype.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: 184KB
IMAGE_SCN_CNT_UNINITIALIZED_DATA
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
UPX1 Size: 43KB - Virtual size: 44KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.rsrc Size: 118KB - Virtual size: 120KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE