Malicious PDF — malware analysis report

Static analysis result for SHA-256 3ffd6260ae253d05…

MALICIOUS

PDF

42.9 KB Created: 2020-08-20 21:07:13 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 13295678baf87c6da27822ea92dbbeaf SHA-1: 1ad5d4376baa52eaeb67db35da28006f1c17e215 SHA-256: 3ffd6260ae253d0534110be905c2d090317e21f7c9f87493a70c9a72db9cc64b
202 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link T1059.001 PowerShell

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'ttraff.com'. This URL is part of a link farm designed to obscure the true destination, which is likely malicious. The document body also contains the same URL, presented as a lure for a 'flash player update', and a large number of other PDF links, many hosted on Shopify, likely to improve SEO for malicious search terms. The presence of a 'download button' heuristic further supports a social engineering attack.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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=adobe+flash+player++firefox+windows+xp In PDF document text
    • http://jifuke.writluxe.org/uploads/1/3/1/4/131455069/doxazavejasapugato.pdfIn PDF document text
    • http://files.the2degrees.org/uploads/1/3/2/7/132712115/xurokixodijozo_nazoxutulurexu_nutezusev_vodod.pdfIn PDF document text
    • http://files.mikesmale.com/uploads/1/3/1/4/131437636/nunuxezuza_dumojeposawixa_xafosuv_sagage.pdfIn PDF document text
    • http://files.flytotheskyteam.com/uploads/1/3/1/4/131453253/4730622.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/1/0428/5700/5215/files/56019767543.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0089/7440/files/machiavelli_the_prince_hackett.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4016/2467/files/22606701366.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4642/1158/files/20140473483.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1752/7715/files/morajivifanoruxebovu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3197/0471/files/wixojazipowatesaf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9039/4788/files/99063209678.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0158/5570/files/defap.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/2256/4000/files/i_m_so_brooklyn_instrumental.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5046/6471/files/57982329148.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2917/6232/files/15255132470.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/4745/0774/files/girl_paper_bag_puppet_template.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006887.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6887 5520 bytes
SHA-256: fff783166ea6c36f7f776e7332005b6c26b22db60a17db8155a70d34c51efd14
font_01_sfnt_off00007b54.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7B54 10228 bytes
SHA-256: 3e98e578c1a25b456ffe40b396b96a9fae441d71627f4c3e113abe946f467f3e