Malicious PDF — malware analysis report

Static analysis result for SHA-256 6b20fe93cf8b2c28…

MALICIOUS

PDF

39.1 KB Created: 2020-08-04 09:44:31 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 89f75f6a11c828cc809e1d12e25465bf SHA-1: c6a17966fffdb7a06185743700df66f289c2d600 SHA-256: 6b20fe93cf8b2c28ff6e2385553605968fba8be3ff9c63dd7ee696f24f004f1a
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains numerous links, including one pointing to a known malicious redirector infrastructure at 'https://ttraff.com/pify?keyword=bonusheft+knappschaft+pdf'. This suggests a phishing or scam attempt, likely using the 'Bonusheft' lure to entice clicks. The PDF also hosts a link farm of other PDFs, indicating a broader campaign to distribute malicious content. While no scripts were explicitly extracted, the PDF structure and embedded links are indicative of malicious intent.

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=bonusheft+knappschaft+pdf In PDF document text
    • http://files.pregnancylossinsilence.com/uploads/1/3/0/9/130969206/dc64b658b3f1.pdfIn PDF document text
    • http://files.heavenlyfreshfarm.com/uploads/1/3/0/9/130969206/c8bbd63c05388a8.pdfIn PDF document text
    • http://kuvejiv.scotthanberry.com/uploads/1/3/1/6/131636655/rokitogugujedesunigo.pdfIn PDF document text
    • http://files.ktncradio.com/uploads/1/3/2/7/132740905/1300118.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/1/0437/8578/1405/files/josorodefonumezube.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6430/3516/files/28667858812.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9980/8149/files/26031716614.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/5830/8006/files/13689153783.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1280/0159/files/carmina_burana_parts.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9505/5777/files/loreverun.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/0686/8126/files/blank_map_of_continents_and_oceans.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/74195332560.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1238/2117/files/nokafidomo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/51994241049.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7257/7946/files/13406927864.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 6

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_off000057ea.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x57EA 5228 bytes
SHA-256: 12a60026e20ee98521e30d0fd6abcdc1694369f8798028ad125e9db69fa9e3b0
font_01_sfnt_off000069ba.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x69BA 11112 bytes
SHA-256: c6c965e83b74979ec8ac63a3580e65bc7ab351748601b2b47266aca01876a8a7

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