Behavioral task
behavioral1
Sample
Down/Down.exe
Resource
win7-20240508-en
Behavioral task
behavioral2
Sample
Down/Down.exe
Resource
win10v2004-20240508-en
Behavioral task
behavioral3
Sample
Down/HELP.chm
Resource
win7-20240508-en
Behavioral task
behavioral4
Sample
Down/HELP.chm
Resource
win10v2004-20240508-en
General
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Target
5db0efd383a4fd9be8cbcf209661825a_JaffaCakes118
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Size
751KB
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MD5
5db0efd383a4fd9be8cbcf209661825a
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SHA1
546bbd0c03c7e334033ebee4346b511b22d98011
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SHA256
6d5a7854f5901e6f748ab6e6df76160ecc0440105dd362e8ab66365389bbaa6b
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SHA512
33982eb08f389a2d44ed19d996de2a75de1e6a37550379e89667d6fef6c541a8c5cf79476ef13ed0f7d21bb76dafd42640355dacd3ae5010ec16edf6b35da46a
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SSDEEP
12288:mFMN6iVp27HNzvPd9sofcz82krXkXuUr55+hfjWRyKWREp/Y/eaaHgSJQTPJY0iu:RNHrUvVKQDkXuUwWoNZ/FaOTPJYKim
Malware Config
Signatures
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resource yara_rule static1/unpack001/Down/Down.EXE upx -
Unsigned PE 2 IoCs
Checks for missing Authenticode signature.
resource unpack001/Down/Down.EXE unpack002/out.upx
Files
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5db0efd383a4fd9be8cbcf209661825a_JaffaCakes118.rar
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Down/Down.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_BYTES_REVERSED_LO
IMAGE_FILE_32BIT_MACHINE
IMAGE_FILE_BYTES_REVERSED_HI
Sections
UPX0 Size: - Virtual size: 1004KB
IMAGE_SCN_CNT_UNINITIALIZED_DATA
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
UPX1 Size: 720KB - Virtual size: 720KB
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: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_BYTES_REVERSED_LO
IMAGE_FILE_32BIT_MACHINE
IMAGE_FILE_BYTES_REVERSED_HI
Sections
CODE Size: 1.1MB - Virtual size: 1.1MB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
DATA Size: 16KB - Virtual size: 16KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
BSS Size: - Virtual size: 5KB
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.idata Size: 12KB - Virtual size: 11KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.tls Size: - Virtual size: 20B
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.rdata Size: 512B - Virtual size: 24B
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.reloc Size: 75KB - Virtual size: 75KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.rsrc Size: 440KB - Virtual size: 440KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
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Down/HELP.CHM.chm
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Down/使用帮助.txt