Behavioral task
behavioral1
Sample
myeventviewer/MyEventViewer.chm
Resource
win7-20240708-en
Behavioral task
behavioral2
Sample
myeventviewer/MyEventViewer.chm
Resource
win10v2004-20240802-en
Behavioral task
behavioral3
Sample
myeventviewer/MyEventViewer.exe
Resource
win7-20240708-en
General
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Target
dcfde5b1207a73d94f139bb9c015a3b5_JaffaCakes118
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Size
50KB
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MD5
dcfde5b1207a73d94f139bb9c015a3b5
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SHA1
790b59bae2f4b63ad0d87080656a0f4041f68025
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SHA256
e9abb443e0f5551569fee90189bd882c56342ed25de0bff99fe3714c321dcdb0
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SHA512
5110e94ed8662674edb28150f05fff9dbe89cbce18dcdec12c9ff10e85b523ecc318aea46ad818791f8f6303f221c4914f1516ca80823894f13f45d893dd07d7
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SSDEEP
1536:/FqUhvyM2Zs7Y+slBHWsdPi2GlJ1gxHvekK:/Fdh6M2Zs7sv2QhWj
Malware Config
Signatures
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Detected Nirsoft tools 1 IoCs
Free utilities often used by attackers which can steal passwords, product keys, etc.
resource yara_rule static1/unpack002/out.upx Nirsoft -
resource yara_rule static1/unpack001/myeventviewer/MyEventViewer.exe upx -
Unsigned PE 2 IoCs
Checks for missing Authenticode signature.
resource unpack001/myeventviewer/MyEventViewer.exe unpack002/out.upx
Files
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dcfde5b1207a73d94f139bb9c015a3b5_JaffaCakes118.rar
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myeventviewer/MyEventViewer.chm.chm
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myeventviewer/MyEventViewer.exe.exe windows:4 windows x86 arch:x86
Headers
File Characteristics
IMAGE_FILE_RELOCS_STRIPPED
IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_32BIT_MACHINE
Sections
UPX0 Size: - Virtual size: 60KB
IMAGE_SCN_CNT_UNINITIALIZED_DATA
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
UPX1 Size: 35KB - Virtual size: 36KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.rsrc Size: 5KB - 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_32BIT_MACHINE
Sections
.text Size: 48KB - Virtual size: 48KB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.rdata Size: 12KB - Virtual size: 11KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.data Size: 1024B - Virtual size: 6KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.rsrc Size: 14KB - Virtual size: 13KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
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myeventviewer/readme.txt