net[.]zip | Triage

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General

Target

net.zip
Size

1.6MB
MD5

f131234383e63049ffa31d3e23fb3631
SHA1

5738246fee1573b77e8b49887ecdeb1a568c999c
SHA256

8e3fb23b48781b001b0ad920bb8719c029f6701c06ed00b17a541af65b99640e
SHA512

911273f8aabd2a70d5cce4f784a2a714a68e7eba2349acacd0f9f31e6aa9fcfa6eb6dee33f0a614e41200b6bb0236466cf64cee82a97c27bcc99193df4faba15
SSDEEP

24576:xdzfjvluANjVShACQNFk1WEnGrWqmm9409f8flNLcdP1NTKZ3Ub9Dfnd:xd7luCU6CkFaJnyFnkflSDsZM97nd

Score

3^/10

Malware Config

Signatures

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

resource
unpack001/Microsoft.NET/sysglobl.dll

Files

net.zip
.zip
Microsoft.NET/BMO-Code-of-Conduct.pdf
.pdf
Microsoft.NET/WsatConfig.exe
.exe windows x86

f34d5f2d4577ed6d9ceec516c1f5a744

Code Sign

33:00:00:01:2b:6d:cf:b5:17:77:f5:6f:42:00:00:00:00:01:2b
Certificate

Issuer

CN=Microsoft Time-Stamp PCA,O=Microsoft Corporation,L=Redmond,ST=Washington,C=US

Not Before

06/09/2019, 20:40

Not After

04/12/2020, 20:40

Subject

CN=Microsoft Time-Stamp Service,OU=Microsoft Operations Puerto Rico+OU=Thales TSS ESN:C0F4-3086-DEF8,O=Microsoft Corporation,L=Redmond,ST=Washington,C=US

Extended Key Usages

ExtKeyUsageTimeStamping

33:00:00:01:51:9e:8d:8f:40:71:a3:0e:41:00:00:00:00:01:51
Certificate

Issuer

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

Not Before

02/05/2019, 21:37

Not After

02/05/2020, 21:37

Subject

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

Extended Key Usages

ExtKeyUsageCodeSigning

61:16:68:34:00:00:00:00:00:1c
Certificate

Issuer

CN=Microsoft Root Certificate Authority,0.9.2342.19200300.100.1.25=#13096d6963726f736f6674,0.9.2342.19200300.100.1.25=#1303636f6d

Not Before

03/04/2007, 12:53

Not After

03/04/2021, 13:03

Subject

CN=Microsoft Time-Stamp PCA,O=Microsoft Corporation,L=Redmond,ST=Washington,C=US

Extended Key Usages

ExtKeyUsageTimeStamping

Key Usages

KeyUsageDigitalSignature
KeyUsageCertSign
KeyUsageCRLSign

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

33:00:00:01:51:9e:8d:8f:40:71:a3:0e:41:00:00:00:00:01:51
Certificate

Issuer

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

Not Before

02/05/2019, 21:37

Not After

02/05/2020, 21:37

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

a0:bf:75:e9:b3:6c:2c:c3:ea:0a:29:39:7b:83:3f:ae:e2:da:bb:02:12:cc:1b:1f:c8:91:9e:6e:1a:38:47:79
Signer

Actual PE Digest

a0:bf:75:e9:b3:6c:2c:c3:ea:0a:29:39:7b:83:3f:ae:e2:da:bb:02:12:cc:1b:1f:c8:91:9e:6e:1a:38:47:79

Digest Algorithm

sha256

PE Digest Matches

true

1a:38:30:96:15:83:b8:95:23:c4:24:83:5a:72:dc:50:7b:53:8e:2c
Signer

Actual PE Digest

1a:38:30:96:15:83:b8:95:23:c4:24:83:5a:72:dc:50:7b:53:8e:2c

Digest Algorithm

sha1

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

Imports

mscoree

_CorExeMain

Sections

.text
Size: 130KB - Virtual size: 129KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

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

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
Microsoft.NET/WsatConfig.exe.config
.xml
Microsoft.NET/sysglobl.dll
.dll windows x64

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

Sections

.text
Size: 2.4MB - Virtual size: 2.4MB

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

Sharing

General

Malware Config

Signatures

Files

f34d5f2d4577ed6d9ceec516c1f5a744

Code Sign

33:00:00:01:2b:6d:cf:b5:17:77:f5:6f:42:00:00:00:00:01:2bCertificate

Extended Key Usages

33:00:00:01:51:9e:8d:8f:40:71:a3:0e:41:00:00:00:00:01:51Certificate

Extended Key Usages

61:16:68:34:00:00:00:00:00:1cCertificate

Extended Key Usages

Key Usages

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

Key Usages

33:00:00:01:51:9e:8d:8f:40:71:a3:0e:41:00:00:00:00:01:51Certificate

Extended Key Usages

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

Key Usages

a0:bf:75:e9:b3:6c:2c:c3:ea:0a:29:39:7b:83:3f:ae:e2:da:bb:02:12:cc:1b:1f:c8:91:9e:6e:1a:38:47:79Signer

1a:38:30:96:15:83:b8:95:23:c4:24:83:5a:72:dc:50:7b:53:8e:2cSigner

Headers

DLL Characteristics

File Characteristics

Imports

mscoree

Sections

.text Size: 130KB - Virtual size: 129KB

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

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

Headers

DLL Characteristics

File Characteristics

Sections

.text Size: 2.4MB - Virtual size: 2.4MB

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

33:00:00:01:2b:6d:cf:b5:17:77:f5:6f:42:00:00:00:00:01:2b
Certificate

33:00:00:01:51:9e:8d:8f:40:71:a3:0e:41:00:00:00:00:01:51
Certificate

61:16:68:34:00:00:00:00:00:1c
Certificate

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

33:00:00:01:51:9e:8d:8f:40:71:a3:0e:41:00:00:00:00:01:51
Certificate

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

a0:bf:75:e9:b3:6c:2c:c3:ea:0a:29:39:7b:83:3f:ae:e2:da:bb:02:12:cc:1b:1f:c8:91:9e:6e:1a:38:47:79
Signer

1a:38:30:96:15:83:b8:95:23:c4:24:83:5a:72:dc:50:7b:53:8e:2c
Signer

.text
Size: 130KB - Virtual size: 129KB

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

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

.text
Size: 2.4MB - Virtual size: 2.4MB

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