Behavioral task
behavioral1
Sample
wul.chm
Resource
win7-20231215-en
Behavioral task
behavioral2
Sample
wul.chm
Resource
win10v2004-20231215-en
Behavioral task
behavioral3
Sample
wul.exe
Resource
win7-20231215-en
Behavioral task
behavioral4
Sample
wul.exe
Resource
win10v2004-20231215-en
Behavioral task
behavioral5
Sample
新云软件.url
Resource
win7-20231215-en
Behavioral task
behavioral6
Sample
新云软件.url
Resource
win10v2004-20231215-en
General
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Target
4cdb9e195724165c0433fd07adf3f5a5
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Size
39KB
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MD5
4cdb9e195724165c0433fd07adf3f5a5
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SHA1
93f1c3c455dde33f414397495be4627c2a31a33f
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SHA256
e82168605542648fc2dff548f423dd109439051abe3284ea69259eaa914fe1e2
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SHA512
4f982b0f5d17b4a7bdf988103b36b2c222e4380312297a7f4d6de7876d3b2860075701427e3d572d74554240840fc6721d18909053f50a9eb0454f8130a60e2c
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SSDEEP
768:eItzdCLxAV8th6S/tRq6YfXELeu+QYgWb7pkm4yBoqHLapJ6Ew6e37b+hvoNwXY3:e+zdD8z6mYfULNWHpD4upHeeE3s7evoZ
Malware Config
Signatures
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Nirsoft 1 IoCs
resource yara_rule static1/unpack002/out.upx Nirsoft -
resource yara_rule static1/unpack001/wul.exe upx -
Unsigned PE 2 IoCs
Checks for missing Authenticode signature.
resource unpack001/wul.exe unpack002/out.upx
Files
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4cdb9e195724165c0433fd07adf3f5a5.rar
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readme.txt
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wul.chm.chm
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wul.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: 48KB
IMAGE_SCN_CNT_UNINITIALIZED_DATA
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
UPX1 Size: 27KB - Virtual size: 28KB
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_32BIT_MACHINE
Sections
.text Size: 38KB - Virtual size: 37KB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.rdata Size: 9KB - Virtual size: 8KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.data Size: 1024B - Virtual size: 3KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.rsrc Size: 12KB - Virtual size: 11KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
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新云软件.url.url