Malicious PDF — malware analysis report

Static analysis result for SHA-256 08c87516f6203352…

MALICIOUS

PDF

46.5 KB Created: 2020-08-07 06:30:32 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 70b081341fb6b2e12233761efaafd491 SHA-1: e242f5bfe1e7f9f0ab4a10d91963d211cac2e8d2 SHA-256: 08c87516f62033520e15b2e5d731b20b194ca36f5c2a1c357d7478129e198669
194 Risk Score

Malware Insights

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

The PDF document contains numerous links, many of which point to a redirector service that is known to host malicious content. The document body itself contains a prominent link to this redirector, suggesting a phishing or scam attempt. The presence of embedded URLs and the ML classifier's high confidence score indicate 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.ru/pify?keyword=benim+hocam+kpss+t%25C3%25BCrk%25C3%25A7e+pdf In PDF document text
    • http://files.hammanrealestate.net/uploads/1/3/1/3/131380008/supebukejisada.pdfIn PDF document text
    • http://files.waimariehvcroquet.org/uploads/1/3/0/7/130775949/fuwimakubavudovej.pdfIn PDF document text
    • http://files.cocewl.org/uploads/1/3/1/4/131437318/xuduju.pdfIn PDF document text
    • http://files.mariecharpentier.net/uploads/1/3/1/4/131483019/batipaxadas.pdfIn PDF document text
    • http://files.oceaneyessupply.com/uploads/1/3/0/8/130813427/pumipozosamava.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/1/0431/0879/4525/files/mathematics_worksheets_grade_7.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4993/4229/files/vupafavabafudasakigad.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9746/4731/files/nudutejawuv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/1060/3677/files/jeginuseb.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9681/0396/files/meditation_piano_sheet_music_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8719/0430/files/guzif.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2180/2404/files/ketikiniwavujesezareb.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5425/1670/files/jusasusukenimaxaxol.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/9906/8310/files/lodatikuzakowezavege.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5554/6517/files/vopaxopoguzadexi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1246/4550/files/case_files_obgyn_5th_edition_free.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_off00007388.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7388 5780 bytes
SHA-256: 414a23218d1860c4c773e1c2b5fd6d0daf32af3677d2e77273d9de61c20981b2
font_01_sfnt_off00008690.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8690 11476 bytes
SHA-256: d60176b3df2dd52a518fad6ebe6b31c17c5a2b75562f810e22114c062e436aff

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