Behavioral task
behavioral1
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
74860003de561106befd9bb0c388d6e4
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SHA1
737602d54e296a8b8718634f25a53283e6824ee6
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SHA256
a72a44a1b5ba1ef230e2b669f24bd24485901d799ffef1a8e1afa5404a0f3b61
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SHA512
e18657cebdbdfbc75a535a9f489ba0b87a58d596c57b0cfb87b9c397406926e0960c7e7217843a15088eec6009a79e1d758e151768c787aae3d66a86e90d4c29
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SSDEEP
196608:u4bYQM60kT2jgEIrn76nHNthMfLHTs9ZUfmIvJGniy/hIqXmuaKDtt:xb1T20Z+H3mfL4DKvJIiyOC93
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
bf04f968ce2d1cf82fc54df7639e3452
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
DefWindowProcA
gdi32
CreateSolidBrush
advapi32
CryptImportKey
shell32
ShellExecuteW
msvcp140
?_Ipfx@?$basic_istream@DU?$char_traits@D@std@@@std@@QEAA_N_N@Z
ntdll
RtlCaptureContext
imm32
ImmReleaseContext
dwmapi
DwmExtendFrameIntoClientArea
normaliz
IdnToAscii
wldap32
ord30
crypt32
CertGetCertificateChain
ws2_32
ntohl
shlwapi
PathFindFileNameW
rpcrt4
UuidCreate
psapi
GetModuleInformation
userenv
UnloadUserProfile
vcruntime140_1
__CxxFrameHandler4
vcruntime140
__std_terminate
api-ms-win-crt-runtime-l1-1-0
system
api-ms-win-crt-stdio-l1-1-0
fsetpos
api-ms-win-crt-heap-l1-1-0
_callnewh
api-ms-win-crt-filesystem-l1-1-0
_wremove
api-ms-win-crt-convert-l1-1-0
strtoll
api-ms-win-crt-utility-l1-1-0
qsort
api-ms-win-crt-string-l1-1-0
isspace
api-ms-win-crt-time-l1-1-0
_time64
api-ms-win-crt-math-l1-1-0
sqrt
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: 219KB
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: 7.9MB
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