Malicious PDF — malware analysis report

Static analysis result for SHA-256 24a6fd75a14180bf…

MALICIOUS

PDF

42.7 KB Created: 2020-07-30 20:27:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 258230ec1952cf3ad2fadba12e0df6a6 SHA-1: 1b99715b20c75bfb34496b6df51ef1fc92ec1de9 SHA-256: 24a6fd75a14180bf451f16de5c63a862380a1124aaf7195a7b524dc1abe5057d
194 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'ttraff.ru'. Additionally, it exhibits a PDF link farm heuristic, with numerous links to Shopify-hosted PDFs, suggesting a common SEO poisoning tactic. The ML classifier strongly flagged this PDF as malicious. The primary attack vector appears to be a social engineering lure using a seemingly benign document title to entice clicks on malicious links.

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=anatomy+of+domestic+animals+pdf In PDF document text
    • http://files.veescape.com/uploads/1/3/1/3/131398278/zubinaruzemas.pdfIn PDF document text
    • http://files.zakidaman.com/uploads/1/3/0/7/130738504/losubot.pdfIn PDF document text
    • http://files.katewestcott.com/uploads/1/3/0/9/130970003/fubepililovop_zutunup_jimon.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/1/0438/4253/5581/files/temoge.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0306/8068/files/renarasakawet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4441/3341/files/kipezu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5583/2471/files/xitofikinut.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6053/5196/files/satisaderisatekizotelun.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7307/7409/files/xosanabifudutukal.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1624/1831/files/vinalalesafose.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/5824/2470/files/gimimik.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2348/3548/files/tupagojerof.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9479/3630/files/gutupuloderugusiwageriw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5937/2439/files/banuruwudotoz.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_off00006c84.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6C84 5084 bytes
SHA-256: 3687ee61fa4facc5b5dad8a88e1e1c3c0bcd5eeedceb105ba4383f1fd72c4039
font_01_sfnt_off00007dc5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7DC5 9464 bytes
SHA-256: 5f1e5dd3fae816099cc79dbf8b119a4f2363e97846b4de917638e350f0280fcc

Open this report in the interactive analyzer, or submit your own file for analysis.