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

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General

Target

System.IO.UnmanagedMemoryStream.dll
Size

15KB
MD5

57d3d81d15db6cf8dd75426a3e45c3b3
SHA1

463c0e394c15dab4b55c6c38981788d63f986b3b
SHA256

8afa45971e39e9de3f3470bcc49ba1f474c9acecb7cd7547a01c4f36477bca3a
SHA512

bcace32c86e153d41c723f0f117b91bfc1b29385f894b6ad69853c54d865467d534aa18ea362e879be93b984004887b8e83c461622aa15a2d5e8b96dce295dbf
SSDEEP

192:2iXwWx+6xWjt+W1uWXebPpUNTQHnhWgN7acW726d9ZnAOVX01k9z3ANAlY:20wc+eWjt+W1Tb2HRN7YD31AqR9zKA+

Score

1^/10

Malware Config

Signatures

Files

System.IO.UnmanagedMemoryStream.dll
.dll windows:4 windows x86 arch:x86

dae02f32a21e03ce65412f6e56942daa

Code Sign

33:00:00:03:7c:c9:f6:bc:ed:07:59:ae:08:00:00:00:00:03:7c
Certificate

Issuer

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

Not Before

11-05-2023 19:03

Not After

08-05-2024 19:03

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

d4:99:f8:4c:d3:21:d4:ca:2f:44:bf:ce:43:5f:c0:3c:17:56:bc:e8:1f:89:68:3b:22:9c:41:f1:70:ed:63:c1
Signer

Actual PE Digest

d4:99:f8:4c:d3:21:d4:ca:2f:44:bf:ce:43:5f:c0:3c:17:56:bc:e8:1f:89:68:3b:22:9c:41:f1:70:ed:63:c1

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_NO_SEH
IMAGE_DLLCHARACTERISTICS_TERMINAL_SERVER_AWARE

File Characteristics

IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_LARGE_ADDRESS_AWARE
IMAGE_FILE_32BIT_MACHINE
IMAGE_FILE_DLL

PDB Paths

/__w/1/s/artifacts/obj/System.IO.UnmanagedMemoryStream/Release/net7.0/System.IO.UnmanagedMemoryStream.pdb

Imports

mscoree

_CorDllMain

Sections

.text
Size: 3KB - 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

33:00:00:03:7c:c9:f6:bc:ed:07:59:ae:08:00:00:00:00:03:7cCertificate

Extended Key Usages

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

Key Usages

d4:99:f8:4c:d3:21:d4:ca:2f:44:bf:ce:43:5f:c0:3c:17:56:bc:e8:1f:89:68:3b:22:9c:41:f1:70:ed:63:c1Signer

Headers

DLL Characteristics

File Characteristics

PDB Paths

Imports

mscoree

Sections

.text Size: 3KB - Virtual size: 2KB

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

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

33:00:00:03:7c:c9:f6:bc:ed:07:59:ae:08:00:00:00:00:03:7c
Certificate

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

d4:99:f8:4c:d3:21:d4:ca:2f:44:bf:ce:43:5f:c0:3c:17:56:bc:e8:1f:89:68:3b:22:9c:41:f1:70:ed:63:c1
Signer

.text
Size: 3KB - Virtual size: 2KB

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

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