Microsoft[.]IO[.]RecyclableMemoryStream[.]dll

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General

Target

Microsoft.IO.RecyclableMemoryStream.dll
Size

59KB
MD5

c11d13a3233acbdc58cf2a909cb3f650
SHA1

cd964b3cd017b52de975c66955ab4b42df3bda59
SHA256

265e85a286dbd102f3701963a5ddbfb15b3adefa87fd94ec194eca1c00223345
SHA512

870a32a67d49c1a8774fc1ce3718ec72f6743431ddd4d0ed51c9a92f541183ce3442ac9d9bcc58f639a1af99e870dca353f67279e7cfff5f98616711a4a3fa98
SSDEEP

1536:I6CkoF3TzL69bm4LVt/aR9Aavbx6PKzvZ2o:/CkoF3TzL69bm4LVt/a8ajoCr

Score

1^/10

Malware Config

Signatures

Files

Microsoft.IO.RecyclableMemoryStream.dll
.dll windows:4 windows x86 arch:x86

dae02f32a21e03ce65412f6e56942daa

Code Sign

33:00:00:01:df:6b:f0:2e:92:a7:4a:b4:d0:00:00:00:00:01:df
Certificate

Issuer

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

Not Before

15/12/2020, 21:31

Not After

02/12/2021, 21:31

Subject

CN=Microsoft Corporation,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

4b:f1:3f:a1:d9:e9:9c:10:be:2f:f5:fa:63:3c:1a:dd:f9:b5:81:8a:8f:9f:b8:98:19:3c:08:0b:c8:ee:65:a3
Signer

Actual PE Digest

4b:f1:3f:a1:d9:e9:9c:10:be:2f:f5:fa:63:3c:1a:dd:f9:b5:81:8a:8f:9f:b8:98:19:3c:08:0b:c8:ee:65:a3

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_DLL

PDB Paths

Microsoft.IO.RecyclableMemoryStream.pdb

Imports

mscoree

_CorDllMain

Sections

.text
Size: 48KB - Virtual size: 48KB

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

33:00:00:01:df:6b:f0:2e:92:a7:4a:b4:d0:00:00:00:00:01:dfCertificate

Extended Key Usages

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

Key Usages

4b:f1:3f:a1:d9:e9:9c:10:be:2f:f5:fa:63:3c:1a:dd:f9:b5:81:8a:8f:9f:b8:98:19:3c:08:0b:c8:ee:65:a3Signer

Headers

DLL Characteristics

File Characteristics

PDB Paths

Imports

mscoree

Sections

.text Size: 48KB - Virtual size: 48KB

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

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

33:00:00:01:df:6b:f0:2e:92:a7:4a:b4:d0:00:00:00:00:01:df
Certificate

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

4b:f1:3f:a1:d9:e9:9c:10:be:2f:f5:fa:63:3c:1a:dd:f9:b5:81:8a:8f:9f:b8:98:19:3c:08:0b:c8:ee:65:a3
Signer

.text
Size: 48KB - Virtual size: 48KB

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

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