Malicious PDF — malware analysis report

Static analysis result for SHA-256 58fae18793ab11a2…

MALICIOUS

PDF

40.3 KB Created: 2020-08-07 18:57:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 022a4cf9d5890e294cb1fff47da18e37 SHA-1: 6dc78ac6de0860029894d5e6a28ed49994e091d7 SHA-256: 58fae18793ab11a2303165fac42fee6076cd345b97ba5ac2e7e7a5a11295e1fb
194 Risk Score

Malware Insights

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

The PDF file was flagged by multiple critical heuristics for containing malicious redirector links and a large number of embedded links, indicating a link farm. The primary malicious URL identified is https://ttraff.com/pify?keyword=br%25C3%25BCche+multiplizieren+textaufgaben+pdf. While no scripts were extracted, the structure and heuristics strongly suggest the document's purpose is to lure users to malicious sites.

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=br%25C3%25BCche+multiplizieren+textaufgaben+pdf In PDF document text
    • http://files.leannajaneyoga.com/uploads/1/3/0/7/130776401/49fb4cf18075.pdfIn PDF document text
    • http://muvefunef.revartmontana.com/uploads/1/3/1/4/131437363/vumuvuvapu.pdfIn PDF document text
    • http://xufat.theomgdonutshop.com/uploads/1/3/1/8/131856772/memakewaxutevi.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/1/0428/6621/3031/files/job_interview_questions_and_answers_esl.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3532/0735/files/chair_exercises_for_seniors_with_pictures.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3914/6662/files/28283075283.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2032/8865/files/niwudivupobofujotoxokire.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/7649/9096/files/tetris_html_code.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3096/0549/files/action_day_planner.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8813/3787/files/sigefu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8099/0366/files/35646193689.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5684/0354/files/83306456581.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5782/3390/files/breadboard_circuits_for_beginners.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/1917/2000/files/30704118375.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2516/9565/files/losafazeluxutufosupako.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/6090/1528/files/xibibokisarit.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1570/7551/files/dotasadupabinamoligixozuf.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 2

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_off00005b4f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5B4F 5820 bytes
SHA-256: 16e9b89739e55bd2d1e355343710eed9b572a471da8c3a53309135e58d399b83
font_01_sfnt_off00006ecd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6ECD 10732 bytes
SHA-256: ef4f34e22f1875fad90a9e2b2c53806aa1ad99444730ed0c26f522a602f1581a

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