Malicious PDF — malware analysis report

Static analysis result for SHA-256 1e7b814a3455cd34…

MALICIOUS

PDF

44.7 KB Created: 2020-08-11 23:08:53 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 270c3fcb38038677962fd7b36231246c SHA-1: 1c8f003425b0f1ade6dfc5b930ebcc832567b592 SHA-256: 1e7b814a3455cd348b56c17a8c17da53431e00ae46246fd971656eba4b5e16c2
202 Risk Score

Malware Insights

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

The PDF contains a mass external link farm, with a critical heuristic firing for a malicious redirector link. The document body, though heavily obfuscated, contains text that appears to be a lure for 'Botany mcq questions and answers pdf'. The primary malicious IOC is the redirector URL, which likely leads to further malicious content or malware. The presence of numerous links, many pointing to Shopify domains, suggests an attempt to obscure the malicious destination through a link farm.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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=botany+mcq+questions+and+answers+pdf In PDF document text
    • http://files.hannieshouse.org/uploads/1/3/1/1/131164168/wiwegomotoloz-xogiduzimorijo.pdfIn PDF document text
    • http://files.zmfarabian.com/uploads/1/3/1/3/131383549/lisusewunidaza-narur-dexozojike.pdfIn PDF document text
    • http://puzaxoguk.artofmeka.studio/uploads/1/3/1/4/131408100/d2ec529.pdfIn PDF document text
    • http://files.thelasalleclub.com/uploads/1/3/1/1/131163736/54f7907d65433d.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/1/0429/4197/2646/files/23498993016.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/0849/8591/files/savuwekalefesuvedexopuko.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9869/4042/files/18415668163.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7386/3829/files/warolubadujobeza.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/0096/9896/files/sinusitis_aguda_tratamiento_antibiotico.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3448/3616/files/endometritis_puerperal_tratamiento.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3147/7922/files/gidefi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2544/8615/files/addition_worksheets_for_grade_4.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0307/4971/files/11685474422.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4570/7166/files/16661239563.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9262/3001/files/stihl_fs_45_parts.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 4

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_off00006f86.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6F86 5636 bytes
SHA-256: 06226d2391cfa145c4d0293768e791526ea75b0daea3c39ae1e0b71e3b1b75ed
font_01_sfnt_off000082a9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x82A9 10332 bytes
SHA-256: b83b161079656b6018c8a8c3f0919a16bef1094d6b23cf26f7a06a980a90c659

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