firefox-129[.]0a1[.]en-US[.]win64[.]installer[.]exe

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General

Target

firefox-129.0a1.en-US.win64.installer.exe
Size

64.5MB
MD5

540608763362907cb9a94ddc7ff5ebe7
SHA1

bd95a071c6fe2e398b494f8496e6e03689f8587e
SHA256

4cde573c03930860f424f7a44caec9bc3cf6075e15a6a5717f0f945000bd5e49
SHA512

d45c64dd9e0870ad193858e4944d65ce4dc90ba0c6f7772c934a08461d17dcf2ee0848afa63d75960af0f6a33de000d3672f9b6d1db87b92744af54535973866
SSDEEP

1572864:9il/qHA8aWgvMgHjQqrLAD/hTf6PPwOLc1gF8PEG+:MlilaX8qvAgUgF8r+

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

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

resource
unpack001/out.upx

Files

firefox-129.0a1.en-US.win64.installer.exe
.exe windows:4 windows x86 arch:x86

Code Sign

01:24:0a:fb:1e:38:0b:8a:16:f1:4b:71:9d:f4:d3:c0
Certificate

Issuer

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

Not Before

09/06/2022, 00:00

Not After

09/11/2031, 23:59

Subject

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

Extended Key Usages

ExtKeyUsageTimeStamping

Key Usages

KeyUsageDigitalSignature
KeyUsageCertSign
KeyUsageCRLSign

08:ad:40:b2:60:d2:9c:4c:9f:5e:cd:a9:bd:93:ae:d9
Certificate

Issuer

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

Not Before

29/04/2021, 00:00

Not After

28/04/2036, 23:59

Subject

CN=DigiCert Trusted G4 Code Signing RSA4096 SHA384 2021 CA1,O=DigiCert\, Inc.,C=US

Extended Key Usages

ExtKeyUsageCodeSigning

Key Usages

KeyUsageDigitalSignature
KeyUsageCertSign
KeyUsageCRLSign

7e:89:b9:df:00:6b:d1:aa:4c:48:d8:65:03:96:34:ca
Certificate

Issuer

CN=Dummy

Not Before

01/01/2013, 07:00

Not After

02/01/2013, 07:00

Subject

CN=Dummy

Extended Key Usages

ExtKeyUsageCodeSigning

Key Usages

KeyUsageDigitalSignature

07:37:b0:d0:dc:dc:ab:8d:78:d2:f4:0c:b1:22:f9:3f
Certificate

Issuer

CN=DigiCert Trusted G4 Code Signing RSA4096 SHA384 2021 CA1,O=DigiCert\, Inc.,C=US

Not Before

02/04/2024, 00:00

Not After

18/06/2027, 23:59

Subject

CN=Mozilla Corporation,OU=Firefox Engineering Operations,O=Mozilla Corporation,L=San Francisco,ST=California,C=US

Extended Key Usages

ExtKeyUsageCodeSigning

Key Usages

KeyUsageDigitalSignature

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

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

05:44:af:f3:94:9d:08:39:a6:bf:db:3f:5f:e5:61:16
Certificate

Issuer

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

Not Before

14/07/2023, 00:00

Not After

13/10/2034, 23:59

Subject

CN=DigiCert Timestamp 2023,O=DigiCert\, Inc.,C=US

Extended Key Usages

ExtKeyUsageTimeStamping

Key Usages

KeyUsageDigitalSignature

9c:bb:ba:28:79:36:af:6e:79:17:dc:f4:0a:f9:c7:fe:d8:2b:d5:6a:7f:40:bd:65:9f:1a:0b:ee:a9:f9:b3:d0
Signer

Actual PE Digest

9c:bb:ba:28:79:36:af:6e:79:17:dc:f4:0a:f9:c7:fe:d8:2b:d5:6a:7f:40:bd:65:9f:1a:0b:ee:a9:f9:b3:d0

Digest Algorithm

sha256

PE Digest Matches

true

Headers

File Characteristics

IMAGE_FILE_RELOCS_STRIPPED
IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_LINE_NUMS_STRIPPED
IMAGE_FILE_LOCAL_SYMS_STRIPPED
IMAGE_FILE_32BIT_MACHINE

Sections

UPX0
Size: - Virtual size: 144KB

IMAGE_SCN_CNT_UNINITIALIZED_DATA
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

UPX1
Size: 64KB - Virtual size: 68KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.rsrc
Size: 63KB - Virtual size: 64KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
out.upx
.exe windows:4 windows x86 arch:x86

Headers

File Characteristics

IMAGE_FILE_RELOCS_STRIPPED
IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_LINE_NUMS_STRIPPED
IMAGE_FILE_LOCAL_SYMS_STRIPPED
IMAGE_FILE_32BIT_MACHINE

Sections

.text
Size: 105KB - Virtual size: 105KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.rdata
Size: 16KB - Virtual size: 15KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.data
Size: 2KB - Virtual size: 10KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.rsrc
Size: 63KB - Virtual size: 63KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Signatures

Files

Code Sign

01:24:0a:fb:1e:38:0b:8a:16:f1:4b:71:9d:f4:d3:c0Certificate

Extended Key Usages

Key Usages

08:ad:40:b2:60:d2:9c:4c:9f:5e:cd:a9:bd:93:ae:d9Certificate

Extended Key Usages

Key Usages

7e:89:b9:df:00:6b:d1:aa:4c:48:d8:65:03:96:34:caCertificate

Extended Key Usages

Key Usages

07:37:b0:d0:dc:dc:ab:8d:78:d2:f4:0c:b1:22:f9:3fCertificate

Extended Key Usages

Key Usages

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

Extended Key Usages

Key Usages

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

Key Usages

05:44:af:f3:94:9d:08:39:a6:bf:db:3f:5f:e5:61:16Certificate

Extended Key Usages

Key Usages

9c:bb:ba:28:79:36:af:6e:79:17:dc:f4:0a:f9:c7:fe:d8:2b:d5:6a:7f:40:bd:65:9f:1a:0b:ee:a9:f9:b3:d0Signer

Headers

File Characteristics

Sections

UPX0 Size: - Virtual size: 144KB

UPX1 Size: 64KB - Virtual size: 68KB

.rsrc Size: 63KB - Virtual size: 64KB

Headers

File Characteristics

Sections

.text Size: 105KB - Virtual size: 105KB

.rdata Size: 16KB - Virtual size: 15KB

.data Size: 2KB - Virtual size: 10KB

.rsrc Size: 63KB - Virtual size: 63KB

01:24:0a:fb:1e:38:0b:8a:16:f1:4b:71:9d:f4:d3:c0
Certificate

08:ad:40:b2:60:d2:9c:4c:9f:5e:cd:a9:bd:93:ae:d9
Certificate

7e:89:b9:df:00:6b:d1:aa:4c:48:d8:65:03:96:34:ca
Certificate

07:37:b0:d0:dc:dc:ab:8d:78:d2:f4:0c:b1:22:f9:3f
Certificate

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

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

05:44:af:f3:94:9d:08:39:a6:bf:db:3f:5f:e5:61:16
Certificate

9c:bb:ba:28:79:36:af:6e:79:17:dc:f4:0a:f9:c7:fe:d8:2b:d5:6a:7f:40:bd:65:9f:1a:0b:ee:a9:f9:b3:d0
Signer

UPX0
Size: - Virtual size: 144KB

UPX1
Size: 64KB - Virtual size: 68KB

.rsrc
Size: 63KB - Virtual size: 64KB

.text
Size: 105KB - Virtual size: 105KB

.rdata
Size: 16KB - Virtual size: 15KB

.data
Size: 2KB - Virtual size: 10KB

.rsrc
Size: 63KB - Virtual size: 63KB