Malicious PDF — malware analysis report

Static analysis result for SHA-256 7c407760232147d8…

MALICIOUS

PDF

41.2 KB Created: 2020-07-31 19:52:27 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 9732640613288254fe7767b9ed1a0a2a SHA-1: 6291f4f761cc04b1d76c5ffcaab79cfaa11e7647 SHA-256: 7c407760232147d8ed8c1e1830a956c33465f85a14737ce2313cdadd964a851a
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous embedded links, many of which point to redirector infrastructure. The primary redirector URL, 'https://ttraff.com/pify?keyword=dnd+5e+divine+sense', is flagged as malicious and likely serves as a lure for phishing or malware distribution. The document body, though heavily obfuscated, contains references to D&D 5e, suggesting a social engineering pretext. The ML classifier strongly indicates maliciousness.

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=dnd+5e+divine+sense In PDF document text
    • http://files.pshigodagirlsfarm.com/uploads/1/3/0/8/130815137/gonikalugazav-safirewoj-jafazebum.pdfIn PDF document text
    • http://files.oswegoeastmensxctf.com/uploads/1/3/1/4/131406435/mevumu-kosopijojarosit-metilozitin-bapelu.pdfIn PDF document text
    • http://files.womenatworkco.com/uploads/1/3/0/7/130776592/58ef27d7.pdfIn PDF document text
    • http://files.onehumanfamily.org/uploads/1/3/1/3/131384635/bafuxa.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/1/0437/3233/6791/files/xidefobak.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9915/2799/files/fiwavopekuvopuzodifipud.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/9123/7791/files/37565964078.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/40545468116.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9004/3285/files/84724966887.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9920/8346/files/87616814410.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7384/6952/files/muloda.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8758/5699/files/16874036442.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/6276/9302/files/74536897113.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/0083/7782/files/bokaxafonuz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7763/2154/files/26901684036.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 7

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_off00006746.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6746 4664 bytes
SHA-256: 68eeb2232fd34902b616a398ec2b4b64bdbb2d0414504dd0255eacb561e067e1
font_01_sfnt_off0000774a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x774A 9656 bytes
SHA-256: 529ce6fcf720e573226e9ba22b2d8f9dbdc4eacf0357817b956bc3d945c4f844

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