KerbClientShared[.]dll

Sharing

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General

Target

KerbClientShared.dll
Size

122KB
MD5

2623c17f0738138cd7bcd899fd34bb13
SHA1

f21bdab495021a300996580480b0c5c73701af68
SHA256

cb882d676b73344f709178f4ca26dcb9d603d1b7ab6ef9fe966ff3cfada6c134
SHA512

9bb0a2bc78ef9132f28fb9e87d6787426730f6cf8981f6016d5bcc254e0ff4bc70707f035425c4a78b58cfa2cd3844c5495238c924edaa7448e479996c98941d
SSDEEP

3072:f6lTbxLXDUOFbuQvwe7ekuQfwqLNN8dFrXb/F4Nxl2XPTi:S/LXFFyQVfN8/3/ul2bi

Score

1^/10

Malware Config

Signatures

Files

KerbClientShared.dll
.dll windows:10 windows x86 arch:x86

5dffe90e60bb1cd8eba0d183c99a8158

Code Sign

33:00:00:01:bb:34:d5:ee:69:78:e6:94:db:00:00:00:00:01:bb
Certificate

Issuer

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

Not Before

06/06/2018, 18:57

Not After

29/05/2019, 18:57

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

31:03:72:ad:21:7f:cb:bb:9a:74:44:22:86:a0:4a:6b:2a:d3:ac:0e:6b:e8:18:e7:dd:3b:4d:6d:75:47:00:f0
Signer

Actual PE Digest

31:03:72:ad:21:7f:cb:bb:9a:74:44:22:86:a0:4a:6b:2a:d3:ac:0e:6b:e8:18:e7:dd:3b:4d:6d:75:47:00:f0

Digest Algorithm

sha256

PE Digest Matches

true

Headers

DLL Characteristics

IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE
IMAGE_DLLCHARACTERISTICS_NX_COMPAT
IMAGE_DLLCHARACTERISTICS_GUARD_CF

File Characteristics

IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_32BIT_MACHINE
IMAGE_FILE_DLL

PDB Paths

KerbClientShared.pdb

Imports

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

_initterm_e
_initterm

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

memset

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

_o__cexit
_o__configure_narrow_argv
_o__crt_atexit
_o__execute_onexit_table
_o__initialize_narrow_environment
_o__initialize_onexit_table
_o__register_onexit_function
_o__seh_filter_dll
memcpy
_o__wcsnicmp
_except_handler4_common
_o___std_type_info_destroy_list
memcmp

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

UnhandledExceptionFilter
SetUnhandledExceptionFilter

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

QueryPerformanceCounter

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

GetSystemTimeAsFileTime
GetSystemInfo

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

GetCurrentThreadId
GetCurrentProcessId
GetCurrentProcess
TerminateProcess
SetThreadStackGuarantee

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

IsProcessorFeaturePresent

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

DisableThreadLibraryCalls

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

InitializeSListHead

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

IsDebuggerPresent

api-ms-win-eventing-classicprovider-l1-1-0

GetTraceEnableFlags
TraceMessage
GetTraceEnableLevel
UnregisterTraceGuids
GetTraceLoggerHandle

api-ms-win-eventing-provider-l1-1-0

EventRegister
EventSetInformation
EventUnregister

api-ms-win-eventing-obsolete-l1-1-0

RegisterTraceGuidsA

msasn1

ASN1EncSetError
ASN1_Encode
ASN1ztcharstring_free
ASN1bitstring_free
ASN1BERDecCharString
ASN1_CreateModule
ASN1BERDecU32Val
ASN1DEREncBitString
ASN1BERDecZeroCharString
ASN1BEREncObjectIdentifier
ASN1BERDecObjectIdentifier
ASN1BERDecBitString
ASN1charstring_free
ASN1DEREncOctetString
ASN1BERDecS32Val
ASN1BEREncOpenType
ASN1BEREncSX
ASN1DecAlloc
ASN1Free
ASN1BERDecSkip
ASN1BEREncBool
ASN1BEREncEndOfContents
ASN1DEREncCharString
ASN1BEREncS32
ASN1_CloseEncoder
ASN1objectidentifier_free
ASN1BERDecBool
ASN1BERDecEndOfContents
ASN1BEREncExplicitTag
ASN1BERDecNotEndOfContents
ASN1BERDecOctetString
ASN1BEREncU32
ASN1BERDecPeekTag
ASN1BERDecGeneralizedTime
ASN1DEREncGeneralizedTime
ASN1BERDecExplicitTag
ASN1DecSetError
ASN1octetstring_free
ASN1BERDecSXVal
ASN1BERDecOpenType2
ASN1_CloseDecoder
ASN1intx_free
ASN1_CreateDecoder
ASN1_Decode
ASN1_CreateEncoder
ASN1_FreeEncoded
ASN1_FreeDecoded

ntdll

RtlImageNtHeader
RtlAllocateHeap
RtlFreeHeap
RtlCompareMemory
RtlInitUnicodeString
RtlDowncaseUnicodeChar
RtlTimeToTimeFields
RtlTimeFieldsToTime
RtlDowncaseUnicodeString

bcrypt

BCryptSecretAgreement
BCryptSetProperty
BCryptDestroyKey
BCryptFinalizeKeyPair
BCryptGenerateKeyPair
BCryptOpenAlgorithmProvider
BCryptExportKey
BCryptCloseAlgorithmProvider
BCryptImportKeyPair

ws2_32

ntohl

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

VirtualAlloc
VirtualQuery
VirtualProtect

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

MultiByteToWideChar

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

ResolveDelayLoadedAPI

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

DelayLoadFailureHook

Exports

Exports

KerbClientAlloc
KerbClientBuildAsReqAuthenticator
KerbClientBuildEncryptedAuthData
KerbClientBuildExplicitArmorKey
KerbClientBuildFastArmoredKdcRequest
KerbClientBuildFastChallenge
KerbClientBuildKeyList
KerbClientBuildStrengthenedReplyKey
KerbClientBuildTicketArmorKey
KerbClientComputeTgsChecksum
KerbClientDecryptApReply
KerbClientDecryptPacCredentials
KerbClientDeriveFastChallengeKey
KerbClientFree
KerbClientFreeStoredCred
KerbClientFreeSupplementalCredentials
KerbClientPackApReply
KerbClientPackAsn1Buffer
KerbClientSharedCleanup
KerbClientSharedInit
KerbClientUnpackAsn1BufferVoid
KerbClientUnpackKdcReplyBody
KerbClientUpdateSharedConfiguration
KerbClientVerifyChecksum
KerbClientVerifyEncryptedChallengePaData
KerbClientVerifyFastArmoredKdcReply
KerbClientVerifyFastArmoredKerbError
KerbClientVerifyFastArmoredTgsReply
KerbDHCreateBCryptKey
KerbDHGetLegacyDHParameters
KerbDHGetLittleEndianPublicKey
KerbDHGetSharedSecretFromCapiKeyBuffer
KerbKdcReplyContainsTgt
KerbPackKdcReplyWithEncryptedSessionKey

Sections

.text
Size: 97KB - Virtual size: 97KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.data
Size: 512B - Virtual size: 1KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.idata
Size: 5KB - Virtual size: 4KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.didat
Size: 512B - Virtual size: 36B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.rsrc
Size: 1KB - Virtual size: 1KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.reloc
Size: 7KB - Virtual size: 6KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Signatures

Files

5dffe90e60bb1cd8eba0d183c99a8158

Code Sign

33:00:00:01:bb:34:d5:ee:69:78:e6:94:db:00:00:00:00:01:bbCertificate

Extended Key Usages

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

Key Usages

31:03:72:ad:21:7f:cb:bb:9a:74:44:22:86:a0:4a:6b:2a:d3:ac:0e:6b:e8:18:e7:dd:3b:4d:6d:75:47:00:f0Signer

Headers

DLL Characteristics

File Characteristics

PDB Paths

Imports

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

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

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

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

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

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

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

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

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

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

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

api-ms-win-eventing-classicprovider-l1-1-0

api-ms-win-eventing-provider-l1-1-0

api-ms-win-eventing-obsolete-l1-1-0

msasn1

ntdll

bcrypt

ws2_32

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

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

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

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

Exports

Exports

Sections

.text Size: 97KB - Virtual size: 97KB

.data Size: 512B - Virtual size: 1KB

.idata Size: 5KB - Virtual size: 4KB

.didat Size: 512B - Virtual size: 36B

.rsrc Size: 1KB - Virtual size: 1KB

.reloc Size: 7KB - Virtual size: 6KB

33:00:00:01:bb:34:d5:ee:69:78:e6:94:db:00:00:00:00:01:bb
Certificate

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

31:03:72:ad:21:7f:cb:bb:9a:74:44:22:86:a0:4a:6b:2a:d3:ac:0e:6b:e8:18:e7:dd:3b:4d:6d:75:47:00:f0
Signer

.text
Size: 97KB - Virtual size: 97KB

.data
Size: 512B - Virtual size: 1KB

.idata
Size: 5KB - Virtual size: 4KB

.didat
Size: 512B - Virtual size: 36B

.rsrc
Size: 1KB - Virtual size: 1KB

.reloc
Size: 7KB - Virtual size: 6KB