Behavioral task
behavioral1
Sample
efmm230.exe
Resource
win7-20240708-en
General
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Target
5a3fa520ec60dbea6afaf43a61716e49_JaffaCakes118
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Size
1.1MB
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MD5
5a3fa520ec60dbea6afaf43a61716e49
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SHA1
de96da71ad6a73b0bbeee65434eba365992469a2
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SHA256
052ce0aef37537342850a662a5b670344551ee8c9cf017d0a5c5b5264899c6b7
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SHA512
2b427aaa1b377fe020573c5ef0df2a6cd749dd3dfe7ee6d16ce44b47542ce33d5aa7ad6193aa279844e8a8e7062475d6c6c95ed4852744ec4de467d0027ee147
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SSDEEP
24576:iKFBnx6ZWfClsLMqyEaDOSagu4yO/e/HgeKhOwIWELc:Pnx8yksIq0jaF4VyKhpz
Malware Config
Signatures
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resource yara_rule static1/unpack001/efmm230.exe upx -
Unsigned PE 2 IoCs
Checks for missing Authenticode signature.
resource unpack001/efmm230.exe unpack002/out.upx
Files
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5a3fa520ec60dbea6afaf43a61716e49_JaffaCakes118.rar
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FILE_ID.DIZ
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efmm230.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: 76KB
IMAGE_SCN_CNT_UNINITIALIZED_DATA
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
UPX1 Size: 34KB - Virtual size: 36KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.rsrc Size: 6KB - Virtual size: 8KB
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: 52KB - Virtual size: 48KB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.rdata Size: 8KB - Virtual size: 4KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.data Size: 16KB - Virtual size: 18KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.rsrc Size: 24KB - Virtual size: 22KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
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