Behavioral task
behavioral1
Sample
Kaissa18a/Kaissa_18_a.exe
Resource
win7-20231215-en
Behavioral task
behavioral2
Sample
Kaissa18a/Kaissa_18_a.exe
Resource
win10v2004-20231215-en
General
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Target
73b90ca7836251e0104e58677825b508
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Size
146KB
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MD5
73b90ca7836251e0104e58677825b508
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SHA1
1ed10af7cce86b2f8549432bf4990a773c0326d1
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SHA256
89456cff4eb5d899b2bcdf66420210babbec4817d16a714cc85021ba6946722b
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SHA512
4e87d4c82fbde5400c1b7046c137acd9bea386f133ccd1c6156653d70470e9897863a4543cf6de138ba7c5b30609032a72bcc8fe810e5789418e724a9e6e877e
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SSDEEP
3072:YeyQ5/Q5g1S2veJgiE1vr2BZaDuvJFY1qDDVe5CCfd1FfsOQkOYUYr:Oxg1hve3EZrq0uvJFLDDVe5CHIUYr
Malware Config
Signatures
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resource yara_rule static1/unpack001/Kaissa18a/Kaissa_18_a.exe upx -
Unsigned PE 2 IoCs
Checks for missing Authenticode signature.
resource unpack001/Kaissa18a/Kaissa_18_a.exe unpack002/out.upx
Files
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73b90ca7836251e0104e58677825b508.rar
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Kaissa18a/Config.dat
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Kaissa18a/Kaissa_18_a.exe.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: 608KB
IMAGE_SCN_CNT_UNINITIALIZED_DATA
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
UPX1 Size: 147KB - Virtual size: 148KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
UPX2 Size: 512B - Virtual size: 4KB
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: 344KB - Virtual size: 340KB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.rdata Size: 28KB - Virtual size: 26KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.data Size: 44KB - Virtual size: 372KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE