System[.]IO[.]UnmanagedMemoryStream[.]dll

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General

Target

System.IO.UnmanagedMemoryStream.dll
Size

15KB
MD5

618f6af4e67094bf0f2328b60a6537a4
SHA1

40cb3f0db3865269dfc5275a103e6f0af7b56226
SHA256

71e9022dd2dcbbdab44b20644daf2f0a4a28603e68c357dd6a770b1eb6e530b2
SHA512

3b52c18644e4c8aa0e4df16005ec844c631e21339cdf5e1bd970a818df3274a74d86c3602fc168c45499943f72c4e5b8590283a663deb33f5ed95f096bb6908d
SSDEEP

384:OFwA+SWk+WnsBlHRN7RWF//dJR9zGJRdHki:iwAhMjRWF//dj9zmRdEi

Score

N/A

Malware Config

Signatures

Files

System.IO.UnmanagedMemoryStream.dll
.dll windows x86

dae02f32a21e03ce65412f6e56942daa

Code Sign

33:00:00:02:8d:7e:47:c3:82:7e:05:1a:2a:00:00:00:00:02:8d
Certificate

Issuer

CN=Microsoft Code Signing PCA 2011,O=Microsoft Corporation,L=Redmond,ST=Washington,C=US

Not Before

14-10-2021 18:45

Not After

13-10-2022 18:45

Subject

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

Extended Key Usages

ExtKeyUsageCodeSigning

61:0e:90:d2:00:00:00:00:00:03
Certificate

Issuer

CN=Microsoft Root Certificate Authority 2011,O=Microsoft Corporation,L=Redmond,ST=Washington,C=US

Not Before

08-07-2011 20:59

Not After

08-07-2026 21:09

Subject

CN=Microsoft Code Signing PCA 2011,O=Microsoft Corporation,L=Redmond,ST=Washington,C=US

Key Usages

KeyUsageDigitalSignature
KeyUsageCertSign
KeyUsageCRLSign

e3:ff:d4:91:cc:08:9c:99:00:05:df:28:0a:d1:6d:0c:f1:08:31:26:4f:7b:ec:30:0b:11:95:b7:e6:64:89:b1
Signer

Actual PE Digest

e3:ff:d4:91:cc:08:9c:99:00:05:df:28:0a:d1:6d:0c:f1:08:31:26:4f:7b:ec:30:0b:11:95:b7:e6:64:89:b1

Digest Algorithm

sha256

PE Digest Matches

true

Signature Validations

Trusted

false

Verification

Signing Certificate

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

15-12-2022 14:03
Valid: false

Headers

DLL Characteristics

IMAGE_DLLCHARACTERISTICS_HIGH_ENTROPY_VA
IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE
IMAGE_DLLCHARACTERISTICS_NX_COMPAT
IMAGE_DLLCHARACTERISTICS_NO_SEH
IMAGE_DLLCHARACTERISTICS_TERMINAL_SERVER_AWARE

File Characteristics

IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_LARGE_ADDRESS_AWARE
IMAGE_FILE_32BIT_MACHINE

Imports

mscoree

_CorDllMain

Sections

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

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

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

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.reloc
Size: 512B - Virtual size: 12B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Signatures

Files

dae02f32a21e03ce65412f6e56942daa

Code Sign

33:00:00:02:8d:7e:47:c3:82:7e:05:1a:2a:00:00:00:00:02:8dCertificate

Extended Key Usages

61:0e:90:d2:00:00:00:00:00:03Certificate

Key Usages

e3:ff:d4:91:cc:08:9c:99:00:05:df:28:0a:d1:6d:0c:f1:08:31:26:4f:7b:ec:30:0b:11:95:b7:e6:64:89:b1Signer

Signature Validations

Verification

15-12-2022 14:03 Valid: false

Headers

DLL Characteristics

File Characteristics

Imports

mscoree

Sections

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

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

.reloc Size: 512B - Virtual size: 12B

33:00:00:02:8d:7e:47:c3:82:7e:05:1a:2a:00:00:00:00:02:8d
Certificate

61:0e:90:d2:00:00:00:00:00:03
Certificate

e3:ff:d4:91:cc:08:9c:99:00:05:df:28:0a:d1:6d:0c:f1:08:31:26:4f:7b:ec:30:0b:11:95:b7:e6:64:89:b1
Signer

15-12-2022 14:03
Valid: false

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

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

.reloc
Size: 512B - Virtual size: 12B