Malicious PDF — malware analysis report

Static analysis result for SHA-256 108bbf29d031ef53…

MALICIOUS

PDF

56.4 KB Created: 2020-08-02 13:10:45 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 2e2b1e68194e712949719902b9022e7e SHA-1: fa9fdb39c7ea879fa449c6130952dd23c55fde0b SHA-256: 108bbf29d031ef53c77e8f4345ccd0dae0ce3b09228cf7b3112e7627e52704d9
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a mass of external links, many pointing to a redirector service (ttraff.cc), suggesting a link farm or phishing lure. The document body, though heavily obfuscated, contains the same redirector URL and references to PDF files hosted on Shopify, indicating an attempt to drive traffic to malicious infrastructure. The ML classifier strongly supports the malicious nature of this PDF.

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.cc/pify?keyword=tatta+hitotsu+no+koi In PDF document text
    • http://files.victoriachampionart.com/uploads/1/3/0/9/130969485/pawixi.pdfIn PDF document text
    • http://files.memberships.jacwellness.com/uploads/1/3/0/7/130776104/1430325.pdfIn PDF document text
    • http://files.lesliesearsart.com/uploads/1/3/2/6/132681969/fejufiveg.pdfIn PDF document text
    • http://files.housewifeofhorror.com/uploads/1/3/0/7/130775011/dulexuforewiso.pdfIn PDF document text
    • http://files.batrssocal.com/uploads/1/3/1/3/131384789/vipibifoxoteroxu.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/1/0434/1514/2567/files/lijonalepojixatu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6539/2804/files/rotozivuma.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9046/9283/files/rozevupatav.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7854/1722/files/repoparegaxuwejenaburo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5290/0260/files/39708931651.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9746/4731/files/reference_images_for_3d_modeling.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2287/5797/files/manufimag.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9826/8065/files/lego_batman_2_cheat_codes.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8233/3856/files/87172868355.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/7387/2807/files/72651867227.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1669/1612/files/jayco_owners_forum.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2865/9869/files/gitinewuvatewozelawixarit.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

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_off00007e8b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7E8B 10564 bytes
SHA-256: 767becc9e88d8e19b32521fcd9d0e05fb3ce0a6c702cb9097280ddadb9f5a9d7
font_01_sfnt_off0000a147.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA147 4660 bytes
SHA-256: 66ceefcd0c71eb62d5754c1ded72ce02ae7f038ffb860e447e1acf5aefe69a53
font_02_sfnt_off0000b11b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB11B 10356 bytes
SHA-256: 3ae14dddb1d6bd8033d04c984cc55d2d5f09d67db551423ada87bb47bda7fe74

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