Behavioral task
behavioral1
Sample
mylastsearch/MyLastSearch.chm
Resource
win7-20240708-en
Behavioral task
behavioral2
Sample
mylastsearch/MyLastSearch.chm
Resource
win10v2004-20240802-en
Behavioral task
behavioral3
Sample
mylastsearch/MyLastSearch.exe
Resource
win7-20240729-en
General
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Target
8ccd03efe038cffa4421e218f264fdce_JaffaCakes118
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Size
56KB
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MD5
8ccd03efe038cffa4421e218f264fdce
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SHA1
7b25f8c78218b3738bb4a795228027bdc7d99b37
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SHA256
3ffe45cb63d156d19980d74084a5de8f12f93c87b5b5228eb22fe9134523e9d0
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SHA512
8eba588dfa1e4bac6d616ad54db25733544f960174b78438e3077c3ccbda983c73b5798f7ff49e66e780a9ae7f44a9fa03cf1e648910598d8b22aa3bee775658
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SSDEEP
1536:/s1jno+STXEJlxoqZzP0bn3DWpAwbMi8vxxS:/BLYq4kDs1MPvxxS
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/mylastsearch/MyLastSearch.exe upx -
Unsigned PE 2 IoCs
Checks for missing Authenticode signature.
resource unpack001/mylastsearch/MyLastSearch.exe unpack002/out.upx
Files
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8ccd03efe038cffa4421e218f264fdce_JaffaCakes118.rar
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mylastsearch/MyLastSearch.chm.chm
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mylastsearch/MyLastSearch.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: 72KB
IMAGE_SCN_CNT_UNINITIALIZED_DATA
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
UPX1 Size: 42KB - Virtual size: 44KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.rsrc Size: 4KB - 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: 63KB - Virtual size: 63KB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.rdata Size: 14KB - Virtual size: 13KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.data Size: 1024B - Virtual size: 13KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.rsrc Size: 11KB - Virtual size: 10KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
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mylastsearch/readme.txt