Nezur[.]dll | Triage

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General

Target

Nezur.dll
Size

13.4MB
MD5

a5d579cabaac45d8b7fbbdc63ba44c4c
SHA1

075566994c7e19f9f8c468e1d992c3346cef4e3a
SHA256

6d3a684abbe16b9885b095c176c6472375d461b000275008aa7c1f62125b6357
SHA512

f84571595634488905410b275e62c099d328a9c86f845efb12f0c534699a59443c27597da9de79b9d1ae4d63620106f2807c1ac0771f8ceca892b96579c43ca5
SSDEEP

196608:MA9vTh99AhyXew/d8uCytSBhx3G7KLdTZkIJkGn9+freSsILX4R:MARahyX7/iLygtFzNHypRXM

Score

7^/10

themida

Malware Config

Signatures

Themida packer 1 IoCs

Detects Themida, an advanced Windows software protection system.

themida

resource	yara_rule
sample	themida

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

resource
Nezur.dll

Files

Nezur.dll
.dll windows:6 windows x64 arch:x64

884b6766290b5f82a69fe5373715ef3f

Headers

DLL Characteristics

IMAGE_DLLCHARACTERISTICS_HIGH_ENTROPY_VA
IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE
IMAGE_DLLCHARACTERISTICS_NX_COMPAT

File Characteristics

IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_LARGE_ADDRESS_AWARE
IMAGE_FILE_DLL

Imports

ws2_32

WSACleanup

kernel32

Process32FirstW
GetSystemTimeAsFileTime
HeapAlloc
HeapFree
ExitProcess
LoadLibraryA
GetModuleHandleA
GetProcAddress

user32

SetClipboardData

advapi32

CryptEncrypt

ole32

CoCreateGuid

msvcp140

?setbuf@?$basic_streambuf@DU?$char_traits@D@std@@@std@@MEAAPEAV12@PEAD_J@Z

bcrypt

BCryptGenRandom

vcruntime140_1

__CxxFrameHandler4

vcruntime140

strchr

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

free

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

_invalid_parameter_noinfo_noreturn

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

strcspn

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

wcstombs

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

fgets

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

round

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

_stat64

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

___lc_codepage_func

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

qsort

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

_time64

wldap32

ord60

normaliz

IdnToAscii

crypt32

CertGetNameStringA

Exports

Exports

Execute
GetClients
Initialize
IsCompilable

Sections

.text
Size: - Virtual size: 1.3MB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.rdata
Size: - Virtual size: 269KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.data
Size: - Virtual size: 42KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.pdata
Size: - Virtual size: 51KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.themida
Size: - Virtual size: 7.7MB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

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

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.themida
Size: 13.4MB - Virtual size: 13.4MB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.reloc
Size: 512B - Virtual size: 296B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.rsrc
Size: 512B - Virtual size: 469B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Signatures

Files

884b6766290b5f82a69fe5373715ef3f

Headers

DLL Characteristics

File Characteristics

Imports

ws2_32

kernel32

user32

advapi32

ole32

msvcp140

bcrypt

vcruntime140_1

vcruntime140

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

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

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

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

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

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

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

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

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

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

wldap32

normaliz

crypt32

Exports

Exports

Sections

.text Size: - Virtual size: 1.3MB

.rdata Size: - Virtual size: 269KB

.data Size: - Virtual size: 42KB

.pdata Size: - Virtual size: 51KB

.themida Size: - Virtual size: 7.7MB

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

.themida Size: 13.4MB - Virtual size: 13.4MB

.reloc Size: 512B - Virtual size: 296B

.rsrc Size: 512B - Virtual size: 469B

.text
Size: - Virtual size: 1.3MB

.rdata
Size: - Virtual size: 269KB

.data
Size: - Virtual size: 42KB

.pdata
Size: - Virtual size: 51KB

.themida
Size: - Virtual size: 7.7MB

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

.themida
Size: 13.4MB - Virtual size: 13.4MB

.reloc
Size: 512B - Virtual size: 296B

.rsrc
Size: 512B - Virtual size: 469B