Malicious PDF — malware analysis report

Static analysis result for SHA-256 1c205bdc68634394…

MALICIOUS

PDF

41.6 KB Created: 2020-08-04 23:38:13 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 3b275f4361e7b9cedf1cf3e9e7071f94 SHA-1: 709513c6e8110c30da8983e926f2f457b2a34f35 SHA-256: 1c205bdc68634394901a3f1121af46257c6a149dc3219821a093791096bbbc6e
194 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.com/pify?keyword=applied+linguistics+books+pdf'. This indicates a phishing or scam attempt. The document also exhibits characteristics of a link farm, with numerous embedded URLs, many pointing to Shopify-hosted PDFs, suggesting an attempt to manipulate search engine results or distribute content. No scripts were extracted from this sample.

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=applied+linguistics+books+pdf In PDF document text
    • http://files.positively-mindful.com/uploads/1/3/0/8/130874016/kirukozufugo-sarufobi-pawedetusamaxu-niluwuruporet.pdfIn PDF document text
    • http://files.grandeprairierugby.com/uploads/1/3/1/3/131397973/butififizimoz.pdfIn PDF document text
    • http://files.firetobekindled.org/uploads/1/3/1/4/131453256/zumemilizelexotozo.pdfIn PDF document text
    • http://files.nick-young.net/uploads/1/3/1/6/131606373/7057666.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1966/5561/files/juzabos.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8561/8583/files/77231738039.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/8567/4149/files/13257714444.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/7154/6279/files/13790687242.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7727/1716/files/golang_load_balancer.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/koxumugude.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/doxufuvezemog.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/9739/0244/files/wigarusiriz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3414/7989/files/82101060001.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4635/4594/files/77393045344.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_off00004cd6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4CD6 5092 bytes
SHA-256: ecf8154b17810d63ca6c27bfff8d7cf722ed3b1d4a461237ba44349545dcc427
font_01_sfnt_off00005e3b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5E3B 13768 bytes
SHA-256: 226b67b387ca3b0b9864a13832dc60fd8e0345b59bbabf39f75b58e87ed1626c
font_02_sfnt_off000089f7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x89F7 4324 bytes
SHA-256: ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3

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