Behavioral task
behavioral1
Sample
nk2view.chm
Resource
win7-20240704-en
Behavioral task
behavioral2
Sample
nk2view.chm
Resource
win10v2004-20240802-en
Behavioral task
behavioral3
Sample
nk2view.exe
Resource
win7-20240704-en
Behavioral task
behavioral4
Sample
nk2view.exe
Resource
win10v2004-20240802-en
Behavioral task
behavioral5
Sample
新云软件.url
Resource
win7-20240704-en
Behavioral task
behavioral6
Sample
新云软件.url
Resource
win10v2004-20240802-en
General
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Target
b3f7a97eaa470ffd7d020f0b80da630e_JaffaCakes118
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Size
43KB
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MD5
b3f7a97eaa470ffd7d020f0b80da630e
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SHA1
f73bd45f0e55ad5c0aca386e8b59c297dbd196cd
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SHA256
86b97e7df133d9c1850d89df132291f4c1ba1ea1c1c6d2dfa8ac7ce705d4bdd0
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SHA512
02a0a5fdbdbfdd87fae02cf4fe80e6790046d2af8db9bc4e756d8b3827cfc7b359f2441c6284e21cbc9ac08806f46cd5e2965658af4f03dd0ec0b518f3134938
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SSDEEP
768:8/oF9qv5Vn2ZV1LHrrKBRetz4KLR/+4E2i3rVRkfe:8S9u5R2j1Dfmet0mi/qfe
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/nk2view.exe upx -
Unsigned PE 2 IoCs
Checks for missing Authenticode signature.
resource unpack001/nk2view.exe unpack002/out.upx
Files
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b3f7a97eaa470ffd7d020f0b80da630e_JaffaCakes118.rar
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nk2view.chm.chm
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nk2view.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: 31KB - Virtual size: 32KB
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: 10KB - Virtual size: 9KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.data Size: 1024B - Virtual size: 5KB
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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readme.txt
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新云软件.url.url