Behavioral task
behavioral1
Sample
Nezur_External.zip
Resource
win11-20240802-en
Behavioral task
behavioral2
Sample
Nezur.exe
Resource
win11-20240802-en
General
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Target
Nezur_External.zip
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Size
12.3MB
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MD5
9d51ffac7886daf04284f69422d613a1
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SHA1
f521f6bfa41fd9c0027d51a4809efb2f7ae3f328
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SHA256
5ea88daf5956173af9405f505db3076ab60f5c81e1df92bc165043195c865ce2
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SHA512
c70db0cc62d5ff8a9f2ee59f47a8894f23ec3a1d5f4ba8e86358ea167beb711d6a8760ea95e1d84b1b5223ed9a60c935ecef59553ff706df8512a8f519b72ad7
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SSDEEP
196608:suF12PaWaLEulAoIScYORyViRzOtdfixHvWrSJAupvz5UkV4r59:f12Pxuq/ShUyVCwUPWWJAutz5BeD
Malware Config
Signatures
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resource yara_rule static1/unpack001/Nezur.exe themida -
Unsigned PE 1 IoCs
Checks for missing Authenticode signature.
resource unpack001/Nezur.exe
Files
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Nezur_External.zip.zip
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Nezur.exe.exe windows:6 windows x64 arch:x64
7efe1f4e74660c3832d8943f85358521
Headers
DLL Characteristics
IMAGE_DLLCHARACTERISTICS_HIGH_ENTROPY_VA
IMAGE_DLLCHARACTERISTICS_NX_COMPAT
IMAGE_DLLCHARACTERISTICS_TERMINAL_SERVER_AWARE
File Characteristics
IMAGE_FILE_RELOCS_STRIPPED
IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_LARGE_ADDRESS_AWARE
Imports
d3d11
D3D11CreateDeviceAndSwapChain
d3dcompiler_43
D3DCompile
kernel32
GetFileType
GetSystemTimeAsFileTime
HeapAlloc
HeapFree
ExitProcess
LoadLibraryA
GetModuleHandleA
GetProcAddress
user32
ClientToScreen
gdi32
CreateSolidBrush
advapi32
CryptDestroyKey
shell32
ShellExecuteW
msvcp140
?_Syserror_map@std@@YAPEBDH@Z
ntdll
RtlCaptureContext
imm32
ImmReleaseContext
dwmapi
DwmExtendFrameIntoClientArea
normaliz
IdnToAscii
wldap32
ord79
crypt32
CertFreeCertificateChainEngine
ws2_32
ntohl
shlwapi
PathFindFileNameW
rpcrt4
UuidCreate
psapi
GetModuleInformation
userenv
UnloadUserProfile
vcruntime140_1
__CxxFrameHandler4
vcruntime140
__std_exception_destroy
api-ms-win-crt-runtime-l1-1-0
_beginthreadex
api-ms-win-crt-stdio-l1-1-0
_read
api-ms-win-crt-heap-l1-1-0
realloc
api-ms-win-crt-filesystem-l1-1-0
_lock_file
api-ms-win-crt-convert-l1-1-0
atof
api-ms-win-crt-utility-l1-1-0
qsort
api-ms-win-crt-string-l1-1-0
strcmp
api-ms-win-crt-time-l1-1-0
strftime
api-ms-win-crt-math-l1-1-0
powf
api-ms-win-crt-locale-l1-1-0
localeconv
api-ms-win-crt-environment-l1-1-0
getenv
Sections
.text Size: - Virtual size: 1.4MB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.rdata Size: - Virtual size: 221KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.data Size: - Virtual size: 1.3MB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.pdata Size: - Virtual size: 39KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.themida Size: - Virtual size: 7.8MB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.themida Size: 6KB - Virtual size: 5KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.themida Size: 13.6MB - Virtual size: 13.6MB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.rsrc Size: 176KB - Virtual size: 176KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ