Behavioral task
behavioral1
Sample
upx201w/upx.vbs
Resource
win7-20241010-en
Behavioral task
behavioral2
Sample
upx201w/upx.vbs
Resource
win10v2004-20241007-en
Behavioral task
behavioral3
Sample
upx201w/upx.vbs
Resource
win7-20240903-en
Behavioral task
behavioral4
Sample
upx201w/upx.vbs
Resource
win10v2004-20241007-en
Behavioral task
behavioral5
Sample
upx201w/upx.exe
Resource
win7-20240903-en
Behavioral task
behavioral6
Sample
upx201w/upx.exe
Resource
win10v2004-20241007-en
Behavioral task
behavioral7
Sample
upx201w/upx.html
Resource
win7-20240903-en
Behavioral task
behavioral8
Sample
upx201w/upx.html
Resource
win10v2004-20241007-en
General
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Target
425abfce123c57ed648553db3683cd8e_JaffaCakes118
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Size
247KB
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MD5
425abfce123c57ed648553db3683cd8e
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SHA1
c9792646e07c9ec09dfb11b12d6a405cae1db94d
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SHA256
68e0827123477cb8a1b7b408e76e3115411a9bc5cab8d32f326d83d0b7552dc3
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SHA512
b1179e844761c125661d210bc5b5bccc4a30dc85b89b2552cdefc25eee0acddea8a0e5cb4b244fe8568a32bf9ea2f44d2b706f8f3408976a256e91d7f0530d5d
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SSDEEP
6144:DGlIoR57RhxCQpLhD/k8jDUErqBkX3gSaBBDdGn6+F+koxakakb:D4lRhxHL/ksAjBkX3gSaBBMkkoxa8
Malware Config
Signatures
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Patched UPX-packed file 1 IoCs
Sample is packed with UPX but required header fields are zeroed out to prevent unpacking with the default UPX tool.
resource yara_rule static1/unpack002/out.upx patched_upx -
resource yara_rule static1/unpack001/upx201w/upx.exe upx -
Unsigned PE 2 IoCs
Checks for missing Authenticode signature.
resource unpack001/upx201w/upx.exe unpack002/out.upx
Files
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425abfce123c57ed648553db3683cd8e_JaffaCakes118.zip
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upx201w/BUGS
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upx201w/COPYING
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upx201w/LICENSE
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upx201w/NEWS
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upx201w/README
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upx201w/README.1ST
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upx201w/THANKS
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upx201w/TODO
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upx201w/upx.1.vbs
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upx201w/upx.doc.vbs
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upx201w/upx.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
IMAGE_FILE_DEBUG_STRIPPED
Sections
UPX0 Size: - Virtual size: 324KB
IMAGE_SCN_CNT_UNINITIALIZED_DATA
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
UPX1 Size: 192KB - Virtual size: 196KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.rsrc Size: 1KB - 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
IMAGE_FILE_DEBUG_STRIPPED
Sections
.text Size: 330KB - Virtual size: 329KB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.data Size: 1024B - Virtual size: 736B
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.rdata Size: 144KB - Virtual size: 143KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.bss Size: - Virtual size: 19KB
IMAGE_SCN_CNT_UNINITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.idata Size: 3KB - Virtual size: 2KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.rsrc Size: 1024B - Virtual size: 880B
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
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upx201w/upx.html.html .vbs polyglot