Firefox_Setup_55[.]0[.]3[.]exe

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General

Target

Firefox_Setup_55.0.3.exe
Size

32.9MB
MD5

ecd9d935a65afe2a17212249e18b6457
SHA1

89d35bb2f6a5c828bb209420e280936e434c2b73
SHA256

55743ff749e6987207b65719d6935a0909488122b6672bc1177630d73e3ef43d
SHA512

75bc7265e7b1a28ad83ccb58f553d76ace8da960a23dc924e4bb3d68eb100745f9663b7aea0b9ed01405ec5592312bd7175b31128abf57146b7a70f7fcf302c6
SSDEEP

786432:HOGTijxLA5U7VcSjS/AGJL8RSDsRhqIYC4eZJHkEQi6KOh/7KEcssKsoM:HOtN8U7A/AG184DsRcg4eZ+FvDp1AK7M

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_Setup_55.0.3.exe
.exe windows:4 windows x86 arch:x86

Code Sign

0c:e7:e0:e5:17:d8:46:fe:8f:e5:60:fc:1b:f0:30:39
Certificate

Issuer

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

Not Before

10/11/2006, 00:00

Not After

10/11/2031, 00:00

Subject

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

Key Usages

KeyUsageDigitalSignature
KeyUsageCertSign
KeyUsageCRLSign

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

0c:53:96:dc:b2:94:9c:70:fa:c4:8a:b0:8a:07:33:8e
Certificate

Issuer

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

Not Before

23/06/2017, 00:00

Not After

28/06/2019, 12:00

Subject

CN=Mozilla Corporation,O=Mozilla Corporation,L=Mountain View,ST=California,C=US

Extended Key Usages

ExtKeyUsageCodeSigning

Key Usages

KeyUsageDigitalSignature

0e:cf:f4:38:c8:fe:bf:35:6e:04:d8:6a:98:1b:1a:50
Certificate

Issuer

CN=Symantec Time Stamping Services CA - G2,O=Symantec Corporation,C=US

Not Before

18/10/2012, 00:00

Not After

29/12/2020, 23:59

Subject

CN=Symantec Time Stamping Services Signer - G4,O=Symantec Corporation,C=US

Extended Key Usages

ExtKeyUsageTimeStamping

Key Usages

KeyUsageDigitalSignature

7e:93:eb:fb:7c:c6:4e:59:ea:4b:9a:77:d4:06:fc:3b
Certificate

Issuer

CN=Thawte Timestamping CA,OU=Thawte Certification,O=Thawte,L=Durbanville,ST=Western Cape,C=ZA

Not Before

21/12/2012, 00:00

Not After

30/12/2020, 23:59

Subject

CN=Symantec Time Stamping Services CA - G2,O=Symantec Corporation,C=US

Extended Key Usages

ExtKeyUsageTimeStamping

Key Usages

KeyUsageCertSign
KeyUsageCRLSign

03:be:8b:79:31:a8:03:6c:61:2d:56:b8:01:07:b6:fa:8a:c7:f0:36
Signer

Actual PE Digest

03:be:8b:79:31:a8:03:6c:61:2d:56:b8:01:07:b6:fa:8a:c7:f0:36

Digest Algorithm

sha1

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: 136KB

IMAGE_SCN_CNT_UNINITIALIZED_DATA
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

UPX1
Size: 56KB - Virtual size: 56KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.rsrc
Size: 34KB - Virtual size: 36KB

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: 124KB - Virtual size: 124KB

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: 3KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.rsrc
Size: 34KB - Virtual size: 34KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Signatures

Files

Code Sign

0c:e7:e0:e5:17:d8:46:fe:8f:e5:60:fc:1b:f0:30:39Certificate

Key Usages

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

Extended Key Usages

Key Usages

0c:53:96:dc:b2:94:9c:70:fa:c4:8a:b0:8a:07:33:8eCertificate

Extended Key Usages

Key Usages

0e:cf:f4:38:c8:fe:bf:35:6e:04:d8:6a:98:1b:1a:50Certificate

Extended Key Usages

Key Usages

7e:93:eb:fb:7c:c6:4e:59:ea:4b:9a:77:d4:06:fc:3bCertificate

Extended Key Usages

Key Usages

03:be:8b:79:31:a8:03:6c:61:2d:56:b8:01:07:b6:fa:8a:c7:f0:36Signer

Headers

File Characteristics

Sections

UPX0 Size: - Virtual size: 136KB

UPX1 Size: 56KB - Virtual size: 56KB

.rsrc Size: 34KB - Virtual size: 36KB

Headers

File Characteristics

Sections

.text Size: 124KB - Virtual size: 124KB

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

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

.rsrc Size: 34KB - Virtual size: 34KB

0c:e7:e0:e5:17:d8:46:fe:8f:e5:60:fc:1b:f0:30:39
Certificate

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

0c:53:96:dc:b2:94:9c:70:fa:c4:8a:b0:8a:07:33:8e
Certificate

0e:cf:f4:38:c8:fe:bf:35:6e:04:d8:6a:98:1b:1a:50
Certificate

7e:93:eb:fb:7c:c6:4e:59:ea:4b:9a:77:d4:06:fc:3b
Certificate

03:be:8b:79:31:a8:03:6c:61:2d:56:b8:01:07:b6:fa:8a:c7:f0:36
Signer

UPX0
Size: - Virtual size: 136KB

UPX1
Size: 56KB - Virtual size: 56KB

.rsrc
Size: 34KB - Virtual size: 36KB

.text
Size: 124KB - Virtual size: 124KB

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

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

.rsrc
Size: 34KB - Virtual size: 34KB