cryptdll[.]dll

Sharing

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General

Target

cryptdll.dll
Size

93KB
MD5

a9b0e1b00b67ff7f1450d61b6b7d4e5e
SHA1

87cc6cfee1f5c4ef44e230810fbf7bff6d2448dd
SHA256

9ea91712d689cfcbceee28fed1c5a032d71d233ca52a8c77d3a2f094ff91c872
SHA512

0304934c813f9501b8209b78b9749153605680ede7b07311b0ac1e0508cae39e850c1b8b54d008ee33adf1737118b476f12bc585aaed4de9074a2af29eb72d5d
SSDEEP

1536:oc+TvmgAc/u1iqDGzK3SDEaGes0hdupXAIqg1sVrT+uD74Jdf1rp2ArP5pPav:ocHc27Dq2cdupXAdAs78Jzrp9rPLiv

Score

1^/10

Malware Config

Signatures

Files

cryptdll.dll
.dll windows:6 windows x64 arch:x64

eb443e38f204f8189f28ff54d172395a

Code Sign

33:00:00:01:c4:22:b2:f7:9b:79:3d:ac:b2:00:00:00:00:01:c4
Certificate

Issuer

CN=Microsoft Windows Production PCA 2011,O=Microsoft Corporation,L=Redmond,ST=Washington,C=US

Not Before

03/07/2018, 20:45

Not After

26/07/2019, 20:45

Subject

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

Extended Key Usages

ExtKeyUsageCodeSigning

61:07:76:56:00:00:00:00:00:08
Certificate

Issuer

CN=Microsoft Root Certificate Authority 2010,O=Microsoft Corporation,L=Redmond,ST=Washington,C=US

Not Before

19/10/2011, 18:41

Not After

19/10/2026, 18:51

Subject

CN=Microsoft Windows Production PCA 2011,O=Microsoft Corporation,L=Redmond,ST=Washington,C=US

Key Usages

KeyUsageDigitalSignature
KeyUsageCertSign
KeyUsageCRLSign

7a:fe:4b:d7:35:3a:63:18:5a:ba:4d:a0:b4:ec:41:c0:97:ae:6c:9c:67:be:b6:4b:99:de:d3:3c:25:56:d0:7a
Signer

Actual PE Digest

7a:fe:4b:d7:35:3a:63:18:5a:ba:4d:a0:b4:ec:41:c0:97:ae:6c:9c:67:be:b6:4b:99:de:d3:3c:25:56:d0:7a

Digest Algorithm

sha256

PE Digest Matches

true

Headers

DLL Characteristics

IMAGE_DLLCHARACTERISTICS_HIGH_ENTROPY_VA
IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE
IMAGE_DLLCHARACTERISTICS_NX_COMPAT
IMAGE_DLLCHARACTERISTICS_GUARD_CF

File Characteristics

IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_LARGE_ADDRESS_AWARE
IMAGE_FILE_DLL

PDB Paths

cryptdll.pdb

Imports

msvcrt

memmove
__C_specific_handler
_initterm
_amsg_exit
_XcptFilter
malloc
memcpy
free
memcmp
memset

ntdll

RtlVirtualUnwind
RtlLookupFunctionEntry
RtlCaptureContext
RtlFreeOemString
RtlUnicodeStringToOemString
RtlInitializeCriticalSection
RtlLeaveCriticalSection
RtlDeleteCriticalSection
RtlNtStatusToDosError
RtlEnterCriticalSection

api-ms-win-core-libraryloader-l1-2-0

DisableThreadLibraryCalls

api-ms-win-core-registry-l1-1-0

RegCloseKey
RegQueryValueExW
RegOpenKeyExW

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

WideCharToMultiByte

api-ms-win-core-errorhandling-l1-1-1

SetUnhandledExceptionFilter
UnhandledExceptionFilter
SetLastError

api-ms-win-core-synch-l1-2-0

Sleep

api-ms-win-core-profile-l1-1-0

QueryPerformanceCounter

api-ms-win-core-processthreads-l1-1-2

GetCurrentProcess
TerminateProcess
GetCurrentThreadId
GetCurrentProcessId

api-ms-win-core-sysinfo-l1-2-1

GetSystemTimeAsFileTime
GetTickCount

api-ms-win-core-heap-obsolete-l1-1-0

LocalFree
LocalAlloc

api-ms-win-core-delayload-l1-1-1

ResolveDelayLoadedAPI
DelayLoadFailureHook

Exports

Exports

CDBuildIntegrityVect
CDBuildVect
CDFindCommonCSystem
CDFindCommonCSystemWithKey
CDGenerateRandomBits
CDGetIntegrityVect
CDLocateCSystem
CDLocateCheckSum
CDLocateRng
CDRegisterCSystem
CDRegisterCheckSum
CDRegisterRng
HMACwithSHA
KRBFXCF2
MD5Final
MD5Init
MD5Update
PBKDF2
aesCTSDecryptMsg
aesCTSEncryptMsg

Sections

.text
Size: 65KB - Virtual size: 65KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.data
Size: 9KB - Virtual size: 9KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.pdata
Size: 3KB - Virtual size: 3KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.idata
Size: 2KB - Virtual size: 2KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.didat
Size: 512B - Virtual size: 120B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

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

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.reloc
Size: 1024B - Virtual size: 548B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Signatures

Files

eb443e38f204f8189f28ff54d172395a

Code Sign

33:00:00:01:c4:22:b2:f7:9b:79:3d:ac:b2:00:00:00:00:01:c4Certificate

Extended Key Usages

61:07:76:56:00:00:00:00:00:08Certificate

Key Usages

7a:fe:4b:d7:35:3a:63:18:5a:ba:4d:a0:b4:ec:41:c0:97:ae:6c:9c:67:be:b6:4b:99:de:d3:3c:25:56:d0:7aSigner

Headers

DLL Characteristics

File Characteristics

PDB Paths

Imports

msvcrt

ntdll

api-ms-win-core-libraryloader-l1-2-0

api-ms-win-core-registry-l1-1-0

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

api-ms-win-core-errorhandling-l1-1-1

api-ms-win-core-synch-l1-2-0

api-ms-win-core-profile-l1-1-0

api-ms-win-core-processthreads-l1-1-2

api-ms-win-core-sysinfo-l1-2-1

api-ms-win-core-heap-obsolete-l1-1-0

api-ms-win-core-delayload-l1-1-1

Exports

Exports

Sections

.text Size: 65KB - Virtual size: 65KB

.data Size: 9KB - Virtual size: 9KB

.pdata Size: 3KB - Virtual size: 3KB

.idata Size: 2KB - Virtual size: 2KB

.didat Size: 512B - Virtual size: 120B

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

.reloc Size: 1024B - Virtual size: 548B

33:00:00:01:c4:22:b2:f7:9b:79:3d:ac:b2:00:00:00:00:01:c4
Certificate

61:07:76:56:00:00:00:00:00:08
Certificate

7a:fe:4b:d7:35:3a:63:18:5a:ba:4d:a0:b4:ec:41:c0:97:ae:6c:9c:67:be:b6:4b:99:de:d3:3c:25:56:d0:7a
Signer

.text
Size: 65KB - Virtual size: 65KB

.data
Size: 9KB - Virtual size: 9KB

.pdata
Size: 3KB - Virtual size: 3KB

.idata
Size: 2KB - Virtual size: 2KB

.didat
Size: 512B - Virtual size: 120B

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

.reloc
Size: 1024B - Virtual size: 548B