Malicious PDF — malware analysis report

Static analysis result for SHA-256 2c715a385fc8df59…

MALICIOUS

PDF

56.8 KB Created: 2020-08-11 23:22:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 58a065d1ce56e4586d5a53ce0047d2e3 SHA-1: 4967b41c89aa0851350a93b8116cd4cc343461ca SHA-256: 2c715a385fc8df5985c6671956376d4b9ca8a7466b703986e8994bf56d9a88fc
194 Risk Score

Malware Insights

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

The PDF contains a link farm designed to redirect users to malicious infrastructure, specifically identified by the PDF_MALICIOUS_REDIRECTOR_LINK heuristic. The embedded URL points to a redirector service that appears to be part of a link farm strategy, as indicated by the PDF_SEO_LINK_FARM heuristic. The primary malicious URL identified is https://ttraff.com/pify?keyword=encyclopedia+of+mathematics+james+stuart+tanton+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.com/pify?keyword=encyclopedia+of+mathematics+james+stuart+tanton+pdf In PDF document text
    • http://files.southtownscatholic.org/uploads/1/3/1/6/131636990/3996155.pdfIn PDF document text
    • http://vutidoso.sarahjenness.com/uploads/1/3/0/8/130814328/8733394.pdfIn PDF document text
    • http://files.niwawriters.net/uploads/1/3/0/8/130873758/voxewi.pdfIn PDF document text
    • http://files.joyofmakeup.ca/uploads/1/3/1/0/131069887/jegosobumega_savogik_wojefukisanule.pdfIn PDF document text
    • http://files.circleoffriendspreschool1.com/uploads/1/3/0/7/130738553/datexumemawulo.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/1/0428/3714/7811/files/zenajalo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9092/8026/files/automatic_control_theory.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/8711/6965/files/advanced_wastewater_treatment_process.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1612/6625/files/75284073320.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9154/2681/files/62577370180.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/mufowotipopugisafe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2286/0966/files/canon_80d_manual_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/1795/9586/files/autobiography_of_mahatma_gandhi_in_marathi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0425/4615/files/audit_of_current_liabilities.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7006/2754/files/github_ga-_students.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9027/1651/files/34714767609.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_off000098f3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x98F3 5532 bytes
SHA-256: 7d34274aba9fe1b641adddee290992bbc766cd72352a5c439f2ddf4abbb8497f
font_01_sfnt_off0000aba1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xABA1 13164 bytes
SHA-256: 73324459e632cfc6227971ef597eeee01c833798a21b429f8fa09fe6bb1e702f

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