Malicious PDF — malware analysis report

Static analysis result for SHA-256 8fb200bb414d2607…

MALICIOUS

PDF

43.5 KB Created: 2020-08-08 13:00:33 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 8fb24fe2e6e5c36e3a806e7ac0f97af6 SHA-1: 8b63e88768e661f929db83512e05b27ce4c8420e SHA-256: 8fb200bb414d260761311219358bd3035cd599c6b44bc93594cbb762ad40af9a
194 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many of which point to a link farm hosted on Shopify. One critical heuristic indicates that the document contains a malicious redirector link to 'ttraff.cc'. The document body, though heavily obfuscated, contains the URL 'https://ttraff.cc/pify?keyword=analytical+geometry+grade+10+formulas+pdf', suggesting a lure to download further content under the guise of educational material. The presence of numerous links and the redirector strongly indicate a phishing or content-luring attack.

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=analytical+geometry+grade+10+formulas+pdf In PDF document text
    • http://files.breakdown4car.co.uk/uploads/1/3/0/7/130775659/suruviteb-dipapasivakur-vikex.pdfIn PDF document text
    • http://files.initiatives.com.hk/uploads/1/3/0/8/130813643/a34612a550c231e.pdfIn PDF document text
    • http://files.gonefishinnd.com/uploads/1/3/1/4/131453256/2607876.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/1/0427/8580/0358/files/belowisimexoxowa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3806/5308/files/baguzeb.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4298/7422/files/10363613845.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3170/7294/files/74596027241.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7202/7814/files/52938490735.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/7311/7087/files/free_registry_repair.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9301/6222/files/sijonorulinefusi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5453/7624/files/47230461830.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/9237/6741/files/81315411766.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/2641/3725/files/karel_j_robot.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/78985131446.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6682/6656/files/8003802587.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 3

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_off00006b3a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6B3A 5760 bytes
SHA-256: 567d96022182f580c5d5b19c1f38ff0bea3589d79d77ddbdc8ec872579d01e16
font_01_sfnt_off00007ed7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7ED7 10076 bytes
SHA-256: 96d67246377dc79818fe949098a92712cee767f6c8304e4dec90b7c04b0b67e3

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