Behavioral task
behavioral1
Sample
letter.htm.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
letter.htm.exe
Resource
win10v2004-20241007-en
General
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Target
JaffaCakes118_630484a590077252767e83aa517ed950
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Size
28KB
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MD5
630484a590077252767e83aa517ed950
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SHA1
598b169f332c7c8d899108e58a09d28d73c7d230
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SHA256
034a572203841a99de9b3df6ec8a928d5a432c7586f646f3875bb735410ebd7a
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SHA512
b940d62cb29e774d17b5a460850d3f3ac061965d1fbbd6c749ed20e775a5083513b6661a18866f1db9abd62a293907a4c9845e2223ce26cb37adae5453331a5c
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SSDEEP
384:kvxBbK26lj5Id8SpHx9jLhsznnVxA1WmP5w7GGCJlqqwMyNphW:Cv8IRRdsxq1DjJcqf4M
Malware Config
Signatures
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Detects MyDoom family 1 IoCs
resource yara_rule static1/unpack002/out.upx family_mydoom -
Mydoom family
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resource yara_rule static1/unpack001/letter.htm .exe upx -
Unsigned PE 2 IoCs
Checks for missing Authenticode signature.
resource unpack001/letter.htm .exe unpack002/out.upx
Files
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JaffaCakes118_630484a590077252767e83aa517ed950.zip
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letter.htm .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: 32KB
IMAGE_SCN_CNT_UNINITIALIZED_DATA
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
UPX1 Size: 24KB - Virtual size: 24KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.rsrc Size: 2KB - 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: 28KB - Virtual size: 28KB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.data Size: 8KB - Virtual size: 8KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.rsrc Size: 1KB - Virtual size: 1KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ