Behavioral task
behavioral1
Sample
FileJoiner.exe
Resource
win7-20240704-en
Behavioral task
behavioral2
Sample
FileJoiner.exe
Resource
win10v2004-20240709-en
General
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Target
3931317b50f153054a750bf81481150a_JaffaCakes118
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Size
781KB
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MD5
3931317b50f153054a750bf81481150a
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SHA1
2c7c00d69645315eded8100852374216143a34c4
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SHA256
927a2b514a099abe45a88f8959a08a96e4ce7933468e974559a29012249bcf74
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SHA512
1698b1bcea0b5cc2b28f752bde780c162389efa88830098e8ecbd973446fe9edc0dd600da5deec8d64b71abe6f2e4627f9dd3d0300999cb3ed59d300dcdf2ff2
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SSDEEP
24576:eWT/GVB3ftmAQUV+ok1KH+kR3+tIUSLvsd0j:eWTuDbV+o9eTtIUj2j
Malware Config
Signatures
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resource yara_rule static1/unpack001/FileJoiner.exe upx -
Unsigned PE 2 IoCs
Checks for missing Authenticode signature.
resource unpack001/FileJoiner.exe unpack002/out.upx
Files
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3931317b50f153054a750bf81481150a_JaffaCakes118.zip
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FileJoiner.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: 1.2MB
IMAGE_SCN_CNT_UNINITIALIZED_DATA
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
UPX1 Size: 789KB - Virtual size: 792KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.rsrc Size: 15KB - Virtual size: 16KB
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: 13KB - Virtual size: 12KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
BSS Size: - Virtual size: 27KB
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.idata Size: 10KB - Virtual size: 10KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.tls Size: - Virtual size: 52B
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: 63KB - Virtual size: 62KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.rsrc Size: 762KB - Virtual size: 762KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
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license.txt