Behavioral task
behavioral1
Sample
bU41.exe
Resource
win7-20240215-en
Behavioral task
behavioral2
Sample
bU41.exe
Resource
win10v2004-20240226-en
General
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Target
bU41.exe
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Size
32KB
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MD5
0d4930c83a7b48f8a9885d438db4d62e
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SHA1
20efd02080a14edf16f27a14a6e73e58cd3a17b0
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SHA256
c91d7eeea984c25fd82975c24a181e09751c25d3a97a440f15104ba83768c883
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SHA512
55d153cec961ff5845d0b3232f9b36771c532f685ed8f8e4e5220545551201d6b44f4fbfd59711bc6e700df26c3560fcb8ff1acb7611a5cf6e201c392e0a875b
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SSDEEP
384:q0bUe5XB4e0XGOd/w0Q0mS03AWTxtTUFQqzF/ObbZ:zT9BuVi55dVbZ
Malware Config
Extracted
njrat
0.7NC
NYAN CAT
serverupdated.duckdns.org:5552
9961bfbb96c
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reg_key
9961bfbb96c
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splitter
@!#&^%$
Signatures
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Njrat family
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Unsigned PE 1 IoCs
Checks for missing Authenticode signature.
resource bU41.exe
Files
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bU41.exe.exe windows:4 windows x86 arch:x86
f34d5f2d4577ed6d9ceec516c1f5a744
Headers
DLL Characteristics
IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE
IMAGE_DLLCHARACTERISTICS_NX_COMPAT
IMAGE_DLLCHARACTERISTICS_NO_SEH
IMAGE_DLLCHARACTERISTICS_TERMINAL_SERVER_AWARE
File Characteristics
IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_32BIT_MACHINE
Imports
mscoree
_CorExeMain
Sections
.text Size: 20KB - Virtual size: 17KB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.rsrc Size: 4KB - Virtual size: 672B
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.reloc Size: 4KB - Virtual size: 12B
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ