Behavioral task
behavioral1
Sample
MicroJoiner.exe
Resource
win7-20240708-en
General
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Target
8dd227aa24cc753ad112eaae65759f45_JaffaCakes118
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Size
14KB
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MD5
8dd227aa24cc753ad112eaae65759f45
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SHA1
51650b5947ef31c290875a721c27f04c1fcf8d31
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SHA256
9f9987e019368ae62f61c8583f1c6a5a9eafe4fa8c6fe2ea1bf001f71af5e1f2
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SHA512
9209d84c72c63b2d636c738770f663bf4abe102dd84323645cb08eed591dd87f08894b63f04ad3e947520d81c4ff03f83796e6d5947561967cbd24af31fbe865
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SSDEEP
384:xRsWPb7cU6TPt7cKOUio1EmaL+ptOu6VWCz:PsYbwUwuKOfYjRtqV/z
Malware Config
Signatures
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resource yara_rule static1/unpack001/MicroJoiner.exe upx -
Unsigned PE 2 IoCs
Checks for missing Authenticode signature.
resource unpack001/MicroJoiner.exe unpack002/out.upx
Files
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8dd227aa24cc753ad112eaae65759f45_JaffaCakes118.zip
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MicroJoiner.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: 116KB
IMAGE_SCN_CNT_UNINITIALIZED_DATA
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
UPX1 Size: 11KB - Virtual size: 12KB
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: 15KB - Virtual size: 14KB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.rdata Size: 2KB - Virtual size: 1KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.data Size: 3KB - Virtual size: 88KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.rsrc Size: 4KB - Virtual size: 4KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
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Readme.txt