Malicious PDF — malware analysis report

Static analysis result for SHA-256 a827b47201a14596…

MALICIOUS

PDF

111.5 KB Created: 2020-08-04 23:42:25 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 8a34aa7e0d3ed7422ae595d7e9fd97a0 SHA-1: 4896b65030eeb08ec3674c29f195cb54f974410e SHA-256: a827b47201a14596e62a32ad0ecc458d20f31404ddb25617e05bfdb165d9c151
194 Risk Score

Malware Insights

MITRE ATT&CK
T1059.001 PowerShell T1566.002 Spearphishing Attachment

The PDF file contains a critical heuristic firing for a malicious redirector link, pointing to 'ttraff.com'. This indicates an attempt to direct the user to a malicious site. Additionally, a PDF SEO link farm heuristic was triggered, suggesting the PDF is part of a larger scheme to generate traffic or distribute malicious content. The embedded URL in the document body confirms the presence of a link intended for user interaction.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • 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 https://ttraff.com/pify?keyword=facilities+and+equipment+of+arnis+pdf In PDF document text
    • http://files.sellingwithwilsonanthony.com/uploads/1/3/1/3/131381078/7235265ec5245.pdfIn PDF document text
    • http://files.countyparkfriends.org/uploads/1/3/0/8/130814279/zobisulit_selitiga_sojinotavom.pdfIn PDF document text
    • http://files.yackamoorundielandcaregroup.com/uploads/1/3/0/7/130738576/f55136849ebb37.pdfIn PDF document text
    • http://files.sandracowan.com/uploads/1/3/1/6/131606687/nolufuzatujivebaj.pdfIn PDF document text
    • http://files.terrellga.com/uploads/1/3/1/4/131453636/c5f987c9449c6.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9163/8934/files/watch_superbad_123movies.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6702/3259/files/6135258942.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0608/2717/files/pudem.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4968/0028/files/82389598139.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/1324/8923/files/79631511732.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/57515970725.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0382/2755/files/novup.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0392/8991/files/49676699704.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4345/4102/files/applied_linguistics_books.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7415/0809/files/33057380376.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5180/9957/files/pugaduw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5152/2977/files/vizobudaj.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00016208.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x16208 5384 bytes
SHA-256: 3ab51ffb718637d5a0fb49134aab3eb03facfbf39d9f0745b85efca6129c5b79
font_01_sfnt_off0001743e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1743E 10572 bytes
SHA-256: 8703f5aeef85f21570500efbe69124f76d556eb24f7fe3fe678e0cd2349ed7dc
font_02_sfnt_off0001988d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1988D 16772 bytes
SHA-256: 1a6b78d8a87bbd0a835fcdf72f4180e90659478caf3b6b072715ca472a97d8c0