Behavioral task
behavioral1
Sample
KFWDUpdate.exe
Resource
win7-20230220-en
Behavioral task
behavioral2
Sample
KFWDUpdate.exe
Resource
win10v2004-20230220-en
General
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Target
KFWDUpdate.exe
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Size
440KB
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MD5
52511979a2d316ad3a2bd8d9e1f66b02
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SHA1
127258a2dc63df00ce0675ff35ed59b7fdcc181a
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SHA256
d59c16064a16e895a068413e29aea67a9a332cc397df2745c5c62a485fcde0df
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SHA512
637934328308a2e977e1b8fef644d98d6ce480eaae92435fa1f1291141563fe800c88f227d1dbe46c99086a0821a6d5abb2b0b5ad61c2fa17ecbfb2e6def5064
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SSDEEP
6144:Bh4sgWrC9KHTnf4/VBLUrZLF76D8lTwDyzRPzGvF3JMfGvWw+mqjzSxeoCDQt+YB:Bs8C9qLfWVBIFBuOSvRJw0CjuiT29s
Malware Config
Signatures
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Processes:
resource yara_rule sample aspack_v212_v242 -
Unsigned PE 1 IoCs
Checks for missing Authenticode signature.
Processes:
resource KFWDUpdate.exe
Files
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KFWDUpdate.exe.exe windows x86
Headers
File Characteristics
IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_LINE_NUMS_STRIPPED
IMAGE_FILE_LOCAL_SYMS_STRIPPED
IMAGE_FILE_BYTES_REVERSED_LO
IMAGE_FILE_32BIT_MACHINE
IMAGE_FILE_BYTES_REVERSED_HI
Sections
CODE Size: 399KB - Virtual size: 1.1MB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
DATA Size: 4KB - Virtual size: 12KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
BSS Size: - Virtual size: 4KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.idata Size: 4KB - Virtual size: 12KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.tls Size: - Virtual size: 4KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.rdata Size: 512B - Virtual size: 4KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.reloc Size: - Virtual size: 88KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.rsrc Size: 23KB - Virtual size: 72KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.aspack Size: 8KB - Virtual size: 8KB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.adata Size: - Virtual size: 4KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE