psiphon3[.]exe

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General

Target

psiphon3.exe
Size

7.4MB
MD5

4a295dbb11f93f8c882992b1f021cc44
SHA1

0426102bbd2ef425e39e7cd5e8c62d490596d6f7
SHA256

f2744d2439e10480a71e687a1613faf247ec59afc1c2d32887c06a4ac88d2714
SHA512

c1dc37ee3609e66bc967909f701be754a50b0dcf26a4cc763cb71bc2e0cf856139aa0e55ddff9aa6e8c14997e3c07902f7861cd9283dcfcdc0ad8ba21fa38dcd
SSDEEP

98304:cmUCHnD6nsLSzM+MUCX2ZuxDnnTslPu3HWKEdr/cuBf+DL9mqXOGxW:cmUCHaQS3+X2uNnYPu32KeccyLx5xW

Score

7^/10

upx

Malware Config

Signatures

UPX packed file 1 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
sample	upx

Files

psiphon3.exe
.exe windows x86

Code Sign

0a:a0:99:e6:4e:21:4d:65:58:01:ea:38:ad:87:67:11
Certificate

Issuer

CN=DigiCert SHA2 Assured ID Code Signing CA,OU=www.digicert.com,O=DigiCert Inc,C=US

Not Before

10/09/2020, 00:00

Not After

02/11/2023, 12:00

Subject

CN=Psiphon Inc.,O=Psiphon Inc.,L=Toronto,ST=Ontario,C=CA

Extended Key Usages

ExtKeyUsageCodeSigning

Key Usages

KeyUsageDigitalSignature

04:09:18:1b:5f:d5:bb:66:75:53:43:b5:6f:95:50:08
Certificate

Issuer

CN=DigiCert Assured ID Root CA,OU=www.digicert.com,O=DigiCert Inc,C=US

Not Before

22/10/2013, 12:00

Not After

22/10/2028, 12:00

Subject

CN=DigiCert SHA2 Assured ID Code Signing CA,OU=www.digicert.com,O=DigiCert Inc,C=US

Extended Key Usages

ExtKeyUsageCodeSigning

Key Usages

KeyUsageDigitalSignature
KeyUsageCertSign
KeyUsageCRLSign

0e:9b:18:8e:f9:d0:2d:e7:ef:db:50:e2:08:40:18:5a
Certificate

Issuer

CN=DigiCert Assured ID Root CA,OU=www.digicert.com,O=DigiCert Inc,C=US

Not Before

01/08/2022, 00:00

Not After

09/11/2031, 23:59

Subject

CN=DigiCert Trusted Root G4,OU=www.digicert.com,O=DigiCert Inc,C=US

Key Usages

KeyUsageDigitalSignature
KeyUsageCertSign
KeyUsageCRLSign

07:36:37:b7:24:54:7c:d8:47:ac:fd:28:66:2a:5e:5b
Certificate

Issuer

CN=DigiCert Trusted Root G4,OU=www.digicert.com,O=DigiCert Inc,C=US

Not Before

23/03/2022, 00:00

Not After

22/03/2037, 23:59

Subject

CN=DigiCert Trusted G4 RSA4096 SHA256 TimeStamping CA,O=DigiCert\, Inc.,C=US

Extended Key Usages

ExtKeyUsageTimeStamping

Key Usages

KeyUsageDigitalSignature
KeyUsageCertSign
KeyUsageCRLSign

0c:4d:69:72:4b:94:fa:3c:2a:4a:3d:29:07:80:3d:5a
Certificate

Issuer

CN=DigiCert Trusted G4 RSA4096 SHA256 TimeStamping CA,O=DigiCert\, Inc.,C=US

Not Before

21/09/2022, 00:00

Not After

21/11/2033, 23:59

Subject

CN=DigiCert Timestamp 2022 - 2,O=DigiCert,C=US

Extended Key Usages

ExtKeyUsageTimeStamping

Key Usages

KeyUsageDigitalSignature

db:b1:28:ea:df:2c:fc:0e:6d:7b:0c:8b:5e:4c:2d:b2:cf:ab:07:ab
Signer

Actual PE Digest

db:b1:28:ea:df:2c:fc:0e:6d:7b:0c:8b:5e:4c:2d:b2:cf:ab:07:ab

Digest Algorithm

sha1

PE Digest Matches

true

Signature Validations

Trusted

true

Verification

Signing Certificate

CN=Psiphon Inc.,O=Psiphon Inc.,L=Toronto,ST=Ontario,C=CA

13/02/2023, 08:58
Valid: true

Chain 1

CN=Psiphon Inc.,O=Psiphon Inc.,L=Toronto,ST=Ontario,C=CA

CN=DigiCert SHA2 Assured ID Code Signing CA,OU=www.digicert.com,O=DigiCert Inc,C=US

CN=DigiCert Assured ID Root CA,OU=www.digicert.com,O=DigiCert Inc,C=US

Headers

DLL Characteristics

IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE
IMAGE_DLLCHARACTERISTICS_NX_COMPAT
IMAGE_DLLCHARACTERISTICS_TERMINAL_SERVER_AWARE

File Characteristics

IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_32BIT_MACHINE

Sections

UPX0
Size: - Virtual size: 14.6MB

IMAGE_SCN_CNT_UNINITIALIZED_DATA
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

UPX1
Size: 7.3MB - Virtual size: 7.3MB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.rsrc
Size: 88KB - Virtual size: 88KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
out.upx
.exe windows x86

Headers

DLL Characteristics

IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE
IMAGE_DLLCHARACTERISTICS_NX_COMPAT
IMAGE_DLLCHARACTERISTICS_TERMINAL_SERVER_AWARE

File Characteristics

IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_32BIT_MACHINE

Sections

.text
Size: 1.2MB - Virtual size: 1.2MB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.rdata
Size: 630KB - Virtual size: 630KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.data
Size: 27KB - Virtual size: 46KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.tls
Size: 10KB - Virtual size: 9KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.gfids
Size: 4KB - Virtual size: 3KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.rsrc
Size: 19.9MB - Virtual size: 19.9MB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.reloc
Size: 72KB - Virtual size: 72KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Signatures

Files

Code Sign

0a:a0:99:e6:4e:21:4d:65:58:01:ea:38:ad:87:67:11Certificate

Extended Key Usages

Key Usages

04:09:18:1b:5f:d5:bb:66:75:53:43:b5:6f:95:50:08Certificate

Extended Key Usages

Key Usages

0e:9b:18:8e:f9:d0:2d:e7:ef:db:50:e2:08:40:18:5aCertificate

Key Usages

07:36:37:b7:24:54:7c:d8:47:ac:fd:28:66:2a:5e:5bCertificate

Extended Key Usages

Key Usages

0c:4d:69:72:4b:94:fa:3c:2a:4a:3d:29:07:80:3d:5aCertificate

Extended Key Usages

Key Usages

db:b1:28:ea:df:2c:fc:0e:6d:7b:0c:8b:5e:4c:2d:b2:cf:ab:07:abSigner

Signature Validations

Verification

13/02/2023, 08:58 Valid: true

Chain 1

Headers

DLL Characteristics

File Characteristics

Sections

UPX0 Size: - Virtual size: 14.6MB

UPX1 Size: 7.3MB - Virtual size: 7.3MB

.rsrc Size: 88KB - Virtual size: 88KB

Headers

DLL Characteristics

File Characteristics

Sections

.text Size: 1.2MB - Virtual size: 1.2MB

.rdata Size: 630KB - Virtual size: 630KB

.data Size: 27KB - Virtual size: 46KB

.tls Size: 10KB - Virtual size: 9KB

.gfids Size: 4KB - Virtual size: 3KB

.rsrc Size: 19.9MB - Virtual size: 19.9MB

.reloc Size: 72KB - Virtual size: 72KB

0a:a0:99:e6:4e:21:4d:65:58:01:ea:38:ad:87:67:11
Certificate

04:09:18:1b:5f:d5:bb:66:75:53:43:b5:6f:95:50:08
Certificate

0e:9b:18:8e:f9:d0:2d:e7:ef:db:50:e2:08:40:18:5a
Certificate

07:36:37:b7:24:54:7c:d8:47:ac:fd:28:66:2a:5e:5b
Certificate

0c:4d:69:72:4b:94:fa:3c:2a:4a:3d:29:07:80:3d:5a
Certificate

db:b1:28:ea:df:2c:fc:0e:6d:7b:0c:8b:5e:4c:2d:b2:cf:ab:07:ab
Signer

13/02/2023, 08:58
Valid: true

UPX0
Size: - Virtual size: 14.6MB

UPX1
Size: 7.3MB - Virtual size: 7.3MB

.rsrc
Size: 88KB - Virtual size: 88KB

.text
Size: 1.2MB - Virtual size: 1.2MB

.rdata
Size: 630KB - Virtual size: 630KB

.data
Size: 27KB - Virtual size: 46KB

.tls
Size: 10KB - Virtual size: 9KB

.gfids
Size: 4KB - Virtual size: 3KB

.rsrc
Size: 19.9MB - Virtual size: 19.9MB

.reloc
Size: 72KB - Virtual size: 72KB