Malicious PDF — malware analysis report

Static analysis result for SHA-256 68799c1a6986b088…

MALICIOUS

PDF

45.2 KB Created: 2020-07-28 09:36:38 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 4800939b1980a50f86a2f768316f15ac SHA-1: 3b90afaba86a35064ecd11d2a9a2c5b5e2514a35 SHA-256: 68799c1a6986b088a7c21bfc8a48efcb321ff564d83feee69687435a20e2d59c
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains multiple heuristics indicating it is part of a link farm and uses a redirector to obscure the final destination. The primary redirector URL is `https://ttraff.ru/pify?keyword=capit%25C3%25A3es+de+areia+pdf+baixar`. While no scripts were extracted, the PDF structure and embedded links suggest an attempt to distribute or redirect to other malicious content, likely as part of a phishing or scam campaign.

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.ru/pify?keyword=capit%25C3%25A3es+de+areia+pdf+baixar In PDF document text
    • http://files.bsquarepro.com/uploads/1/3/1/4/131453917/335168.pdfIn PDF document text
    • http://files.aldendieselandtractorrepair.com/uploads/1/3/1/6/131637255/2790132.pdfIn PDF document text
    • http://files.christiandewulf.com/uploads/1/3/0/8/130815009/wegon_xarivaxan.pdfIn PDF document text
    • http://files.midwestcraftshows.com/uploads/1/3/1/8/131857734/02ac2c84e2452.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/1/0429/8627/4967/files/88933985985.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/dogudanivivakow.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5395/6758/files/tujovasuxemogipujaneze.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9275/5111/files/20264682806.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7921/2959/files/mojegubuvebusat.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0069/1866/files/jibabuteba.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4856/6938/files/nepuzasamuleruxapej.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7205/2643/files/45304012341.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/dadimutixiwukigojubiw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/punafaga.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3124/8542/files/pifodif.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0118/3384/files/funitogejix.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006eae.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6EAE 5124 bytes
SHA-256: 307eaba0e52483ba612ad64f1f9fc373f50f721b3b1a6cec0e6d4233b6429b77
font_01_sfnt_off00007f91.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7F91 12636 bytes
SHA-256: 8e73b83ff6d0dc71beda78d7f4ec34cac38143b089bbfa24c070e2e6d7fb76c6

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