Nezur_Externaddddl[.]zip

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General

Target

Nezur_Externaddddl.zip
Size

24.5MB
MD5

f3fee280b0196bb704b48a9d1b833668
SHA1

4941a2d45da4d9a03ef5144444fda23682626825
SHA256

cec9afd5cee2962ab6f0fb8c3eca48e0f98c70b23e4d64474bd46f8336015c35
SHA512

856f8b6813fb4b48e6457045e7b758bbe82bc57733b4a015edb4d15f38c0bd2cf7595d48eab0409e550e902e9b8b806116ec1a6ec4576e53d63ccbc754140d63
SSDEEP

786432:4InBD6rbfddNN9xK3Y14Asn2NGJoP9gaoGIz:32dNY3Y3s24JORoGQ

Score

7^/10

themida

Malware Config

Signatures

Themida packer 1 IoCs

Detects Themida, an advanced Windows software protection system.

themida

resource	yara_rule
static1/unpack001/Nezur_External/Nezur.exe	themida

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

resource
unpack001/Nezur_External/Nezur.exe

Files

Nezur_Externaddddl.zip
.zip
Nezur_External/D3DCompiler_43.dll
.dll windows:6 windows x86 arch:x86

6ba7b0e4e74a8eea96dca4fffc88b859

Code Sign

2e:ab:11:dc:50:ff:5c:9d:cb:c0
Certificate

Issuer

CN=Microsoft Root Authority,OU=Copyright (c) 1997 Microsoft Corp.+OU=Microsoft Corporation

Not Before

22/08/2007, 22:31

Not After

25/08/2012, 07:00

Subject

CN=Microsoft Code Signing PCA,O=Microsoft Corporation,L=Redmond,ST=Washington,C=US

Extended Key Usages

ExtKeyUsageCodeSigning

Key Usages

KeyUsageDigitalSignature
KeyUsageCertSign
KeyUsageCRLSign

61:01:cf:3e:00:00:00:00:00:0f
Certificate

Issuer

CN=Microsoft Code Signing PCA,O=Microsoft Corporation,L=Redmond,ST=Washington,C=US

Not Before

07/12/2009, 22:40

Not After

07/03/2011, 22:40

Subject

CN=Microsoft Corporation,OU=MOPR,O=Microsoft Corporation,L=Redmond,ST=Washington,C=US

Extended Key Usages

ExtKeyUsageCodeSigning

Key Usages

KeyUsageDigitalSignature

6a:0b:99:4f:c0:00:25:ab:11:db:45:1f:58:7a:67:a2
Certificate

Issuer

CN=Microsoft Root Authority,OU=Copyright (c) 1997 Microsoft Corp.+OU=Microsoft Corporation

Not Before

16/09/2006, 01:04

Not After

15/09/2019, 07:00

Subject

CN=Microsoft Timestamping PCA,O=Microsoft Corporation,L=Redmond,ST=Washington,C=US

Extended Key Usages

ExtKeyUsageTimeStamping

Key Usages

KeyUsageDigitalSignature
KeyUsageCertSign
KeyUsageCRLSign

61:05:a2:30:00:00:00:00:00:08
Certificate

Issuer

CN=Microsoft Timestamping PCA,O=Microsoft Corporation,L=Redmond,ST=Washington,C=US

Not Before

25/07/2008, 19:01

Not After

25/07/2013, 19:11

Subject

CN=Microsoft Time-Stamp Service,OU=MOPR+OU=nCipher DSE ESN:85D3-305C-5BCF,O=Microsoft Corporation,L=Redmond,ST=Washington,C=US

Extended Key Usages

ExtKeyUsageTimeStamping

Key Usages

KeyUsageDigitalSignature
KeyUsageContentCommitment

a0:dc:fd:f1:04:c6:f9:25:f4:de:ed:83:b3:1b:1c:9e:4a:d1:be:fb
Signer

Actual PE Digest

a0:dc:fd:f1:04:c6:f9:25:f4:de:ed:83:b3:1b:1c:9e:4a:d1:be:fb

Digest Algorithm

sha1

PE Digest Matches

true

Headers

DLL Characteristics

IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE
IMAGE_DLLCHARACTERISTICS_NX_COMPAT

File Characteristics

IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_32BIT_MACHINE
IMAGE_FILE_DLL

PDB Paths

D3DCompiler_43.pdb

Imports

msvcrt

??1type_info@@UAE@XZ
?terminate@@YAXXZ
_unlock
__dllonexit
_lock
_onexit
_amsg_exit
_initterm
_XcptFilter
_CxxThrowException
memset
memcpy
isxdigit
atof
setlocale
_strdup
_mbstrlen
modf
isalnum
_isnan
ceil
_finite
strrchr
_clearfp
_controlfp
_strnicmp
_fpclass
_purecall
strncmp
isspace
strstr
getenv
_stricmp
memmove
qsort
isalpha
toupper
atoi
isdigit
tolower
free
malloc
??2@YAPAXI@Z
??3@YAXPAX@Z
strchr
_vsnprintf
_errno
__CxxFrameHandler
floor
_CIfmod
_CItanh
_CItan
_CIsinh
_CIsin
_CIlog
_CIpow
_CIexp
_CIsqrt
_CIcosh
_CIcos
_CIatan2
_CIatan
_CIasin
_CIacos

gdi32

DeleteObject

kernel32

UnhandledExceptionFilter
GetCurrentProcess
TerminateProcess
GetSystemTimeAsFileTime
GetCurrentProcessId
GetCurrentThreadId
GetTickCount
QueryPerformanceCounter
RtlUnwind
UnmapViewOfFile
CloseHandle
DeleteCriticalSection
InitializeCriticalSection
VirtualFree
GetLastError
SetUnhandledExceptionFilter
WideCharToMultiByte
GetFullPathNameA
HeapCreate
OutputDebugStringA
LoadLibraryA
GetModuleHandleA
lstrcmpiA
TlsFree
TlsGetValue
HeapDestroy
TlsSetValue
InterlockedExchange
TlsAlloc
Sleep
InterlockedCompareExchange
FreeLibrary
GetSystemInfo
GetProcAddress
VirtualAlloc
GetProcessHeap
HeapFree
HeapAlloc
DisableThreadLibraryCalls
MultiByteToWideChar
GetVersion

Exports

Exports

D3DAssemble
D3DCompile
D3DCompressShaders
D3DCreateBlob
D3DDecompressShaders
D3DDisassemble
D3DDisassemble10Effect
D3DGetBlobPart
D3DGetDebugInfo
D3DGetInputAndOutputSignatureBlob
D3DGetInputSignatureBlob
D3DGetOutputSignatureBlob
D3DPreprocess
D3DReflect
D3DReturnFailure1
D3DStripShader
DebugSetMute

Sections

.text
Size: 1.9MB - Virtual size: 1.9MB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.data
Size: 16KB - Virtual size: 31KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.rsrc
Size: 1024B - Virtual size: 968B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.reloc
Size: 56KB - Virtual size: 55KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ
Nezur_External/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: 1.3MB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.rdata
Size: - Virtual size: 220KB

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: 16.1MB

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: 27.1MB - Virtual size: 27.1MB

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

Sharing

General

Malware Config

Signatures

Files

6ba7b0e4e74a8eea96dca4fffc88b859

Code Sign

2e:ab:11:dc:50:ff:5c:9d:cb:c0Certificate

Extended Key Usages

Key Usages

61:01:cf:3e:00:00:00:00:00:0fCertificate

Extended Key Usages

Key Usages

6a:0b:99:4f:c0:00:25:ab:11:db:45:1f:58:7a:67:a2Certificate

Extended Key Usages

Key Usages

61:05:a2:30:00:00:00:00:00:08Certificate

Extended Key Usages

Key Usages

a0:dc:fd:f1:04:c6:f9:25:f4:de:ed:83:b3:1b:1c:9e:4a:d1:be:fbSigner

Headers

DLL Characteristics

File Characteristics

PDB Paths

Imports

msvcrt

gdi32

kernel32

Exports

Exports

Sections

.text Size: 1.9MB - Virtual size: 1.9MB

.data Size: 16KB - Virtual size: 31KB

.rsrc Size: 1024B - Virtual size: 968B

.reloc Size: 56KB - Virtual size: 55KB

bf04f968ce2d1cf82fc54df7639e3452

Headers

DLL Characteristics

File Characteristics

Imports

d3d11

d3dcompiler_43

kernel32

user32

gdi32

advapi32

shell32

msvcp140

ntdll

imm32

dwmapi

normaliz

wldap32

crypt32

ws2_32

shlwapi

rpcrt4

psapi

userenv

vcruntime140_1

vcruntime140

api-ms-win-crt-runtime-l1-1-0

api-ms-win-crt-stdio-l1-1-0

api-ms-win-crt-heap-l1-1-0

api-ms-win-crt-filesystem-l1-1-0

api-ms-win-crt-convert-l1-1-0

api-ms-win-crt-utility-l1-1-0

api-ms-win-crt-string-l1-1-0

api-ms-win-crt-time-l1-1-0

api-ms-win-crt-math-l1-1-0

api-ms-win-crt-locale-l1-1-0

api-ms-win-crt-environment-l1-1-0

Sections

.text Size: - Virtual size: 1.3MB

.rdata Size: - Virtual size: 220KB

.data Size: - Virtual size: 1.3MB

.pdata Size: - Virtual size: 39KB

.themida Size: - Virtual size: 16.1MB

.themida Size: 6KB - Virtual size: 5KB

.themida Size: 27.1MB - Virtual size: 27.1MB

2e:ab:11:dc:50:ff:5c:9d:cb:c0
Certificate

61:01:cf:3e:00:00:00:00:00:0f
Certificate

6a:0b:99:4f:c0:00:25:ab:11:db:45:1f:58:7a:67:a2
Certificate

61:05:a2:30:00:00:00:00:00:08
Certificate

a0:dc:fd:f1:04:c6:f9:25:f4:de:ed:83:b3:1b:1c:9e:4a:d1:be:fb
Signer

.text
Size: 1.9MB - Virtual size: 1.9MB

.data
Size: 16KB - Virtual size: 31KB

.rsrc
Size: 1024B - Virtual size: 968B

.reloc
Size: 56KB - Virtual size: 55KB

.text
Size: - Virtual size: 1.3MB

.rdata
Size: - Virtual size: 220KB

.data
Size: - Virtual size: 1.3MB

.pdata
Size: - Virtual size: 39KB

.themida
Size: - Virtual size: 16.1MB

.themida
Size: 6KB - Virtual size: 5KB

.themida
Size: 27.1MB - Virtual size: 27.1MB

.rsrc
Size: 176KB - Virtual size: 176KB