Malicious PDF — malware analysis report

Static analysis result for SHA-256 bb944aafadbbf4b9…

MALICIOUS

PDF

102.4 KB Authoring application: Serif PagePlus First seen: 2020-09-24
MD5: 794ae5e4556c09af62268b8965e66113 SHA-1: 217ad249faba50c85adc0dc3cdb9f5cb8a399c49 SHA-256: bb944aafadbbf4b99d2b1c74748db7547487840e2d5491cb5e8144fee0f4a964
192 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a large number of embedded URLs pointing to other PDF files hosted on various domains. This behavior is indicative of a link farm or a distribution mechanism for malicious content. The ClamAV detection 'Pdf.Phishing.TtraffRobotInstall-7605656-0' further supports a phishing or malicious intent. No scripts were extracted from this sample, and the document body was heavily obfuscated and truncated, limiting further analysis of its direct content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 4

  • ClamAV: Pdf.Phishing.TtraffRobotInstall-7605656-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.TtraffRobotInstall-7605656-0
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • PDF link to algorithmically-generated URL high PDF_RANDOM_URL_LINK
    PDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL http://stalvanmourik.com/uploads/1/3/0/2/130270901/davidowuke-zazam-vanazumewivuxe.pdf In PDF document text
    • http://mlj-law.com/uploads/1/3/0/8/130874347/4b605322a7006ff.pdfIn PDF document text
    • http://mikebouchard.net/uploads/1/3/0/2/130272390/8557101.pdfIn PDF document text
    • http://deannapaulsen.com/uploads/1/3/0/3/130313157/228480.pdfIn PDF document text
    • http://psvisions.com/uploads/1/3/0/5/130590312/kojibaje.pdfIn PDF document text
    • http://arcworksdesign.org/uploads/1/3/0/7/130775271/1353229.pdfIn PDF document text
    • http://www.destinedforlove.rpjandco.com/uploads/1/3/0/2/130270923/ragamizokasoxowuwubu.pdfIn PDF document text
    • http://duaneclark.net/uploads/1/3/0/6/130640223/911f3bafc.pdfIn PDF document text
    • http://reifierentertainmentdevelopment.com/uploads/1/3/0/7/130775977/2421613.pdfIn PDF document text
    • http://retrobathandbody.net/uploads/1/3/0/2/130288887/c8a14075b02.pdfIn PDF document text
    • http://vegatrader.com/uploads/1/3/0/8/130874634/badizik.pdfIn PDF document text
    • http://pusayorkunited.net/uploads/1/3/0/6/130639766/venanadoriro.pdfIn PDF document text
    • http://brentmichaelchow.com/uploads/1/3/0/6/130639272/livag.pdfIn PDF document text
    • http://brandywinearrows.com/uploads/1/3/0/6/130604166/9e9ee5dda0dc3.pdfIn PDF document text
    • http://cmthain.com/uploads/1/3/0/2/130273846/243736.pdfIn PDF document text
    • http://officespace1999.com/uploads/1/3/0/4/130489080/a4fc8a.pdfIn PDF document text
    • http://worldport.shop/uploads/1/3/0/7/130739398/23fdcb.pdfIn PDF document text
    • http://autodiscover.westside-church.com/uploads/1/3/0/2/130270917/ed7309eb.pdfIn PDF document text
    • http://sharedtravel.voyagerwebsites.com/uploads/1/3/0/4/130435547/130435547.html#cardiac+output+definition+pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
    • https://fedoraproject.org/wiki/Licensing/LiberationFontLicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007010.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7010 11440 bytes
SHA-256: 488c7b95a48afa50a97fb1991e8bcfc194b5805eb3070382aca8742cdf352673
font_01_sfnt_off00014383.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x14383 16060 bytes
SHA-256: b080e6aa9682ff87567a230b404ab00780bafcfd3ba11e3f536b788ca6e08ef5
font_02_sfnt_off000157e7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x157E7 3180 bytes
SHA-256: 2f81d8a32baed8acd76628942b9a150d2b9f59c47ae37ec2f4968d50ad1ed43a

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