Behavioral task
behavioral1
Sample
a9c29cdded6fc47299bbb4fad2eb75a9_JaffaCakes118.exe
Resource
win7-20240704-en
General
-
Target
a9c29cdded6fc47299bbb4fad2eb75a9_JaffaCakes118
-
Size
83KB
-
MD5
a9c29cdded6fc47299bbb4fad2eb75a9
-
SHA1
8052bce4c74015bbf7de046d739c028daa043ebd
-
SHA256
48f0c2756db4295640e11b8a6f2873600f1cc8ec77d40bd2797268ac870bb414
-
SHA512
2d2da0700d0d1145345bc6029052e6e31a7c37714a97d20665d5e0a4f1487453511cc355031a50dc6d6b6fa88585151184c6cb46d00ce9e94ddcbbd02162086b
-
SSDEEP
1536:+k0B6h6I9de5QS+erSAaNRTW6gBzHr4GUZOosvyn8cP4ZFlyRPjB70UmRlpH:ztomdsrNKTWaGUZO/RcJRPJCRn
Malware Config
Signatures
-
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/unpack001/out.upx patched_upx -
resource yara_rule sample upx -
Unsigned PE 2 IoCs
Checks for missing Authenticode signature.
resource a9c29cdded6fc47299bbb4fad2eb75a9_JaffaCakes118 unpack001/out.upx
Files
-
a9c29cdded6fc47299bbb4fad2eb75a9_JaffaCakes118.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: 124KB
IMAGE_SCN_CNT_UNINITIALIZED_DATA
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
UPX1 Size: 82KB - Virtual size: 84KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
UPX2 Size: 512B - Virtual size: 4KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
-
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: 140KB - Virtual size: 138KB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.rdata Size: 52KB - Virtual size: 51KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.data Size: 4KB - Virtual size: 4KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE