Behavioral task
behavioral1
Sample
letter.htm.scr
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
letter.htm.scr
Resource
win10v2004-20241007-en
General
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Target
JaffaCakes118_7a7647352f8dad8193cccc28b13ff0f0
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Size
21KB
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MD5
7a7647352f8dad8193cccc28b13ff0f0
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SHA1
45a522ef694d7a12cca9ef72cf84e9eb6add4de3
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SHA256
2b5ad2a717fdebc35924264f790c06c78e80cb41f60de05d4ab4f1b4af2e9adf
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SHA512
f4be86cc56db0dc6a40dd22fa531fed35574006cad88d4d252c7e5812c3825a1aa821435ea20c6d68d15e5a56f83ab73ef8b666da705711835e12761997d2871
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SSDEEP
384:HZcpzCIqdG3A3WUkx38GZDJuJbf1+o44u8gHzUTXR:ACIqdH/k1ZVcT194jp4rR
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 .scr upx -
Unsigned PE 2 IoCs
Checks for missing Authenticode signature.
resource unpack001/letter.htm .scr unpack002/out.upx
Files
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JaffaCakes118_7a7647352f8dad8193cccc28b13ff0f0.zip
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letter.htm .scr.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: 24KB
IMAGE_SCN_CNT_UNINITIALIZED_DATA
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
UPX1 Size: 17KB - Virtual size: 20KB
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: 30KB - Virtual size: 30KB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.rsrc Size: 1KB - Virtual size: 1KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ