Malicious PDF — malware analysis report

Static analysis result for SHA-256 e2f9ed86fc4a2c66…

MALICIOUS

PDF

50.5 KB Created: 2020-08-13 11:30:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: e2178de02e18abb024d3bb29a0f94592 SHA-1: 21227829a1f077744f7df657547def14db3fc875 SHA-256: e2f9ed86fc4a2c66188c493d984a5946dea73228f6244dc09052834281fa4929
194 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for a malicious redirector link, pointing to 'ttraff.cc'. The document body, though heavily obfuscated, also contains this URL. The PDF also exhibits characteristics of a link farm, with numerous embedded URLs, many pointing to Shopify domains hosting other PDFs. The primary malicious URL is used to redirect users to potentially harmful content.

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.cc/pify?keyword=kazdin+metodos+de+investigacion+en+psicologia+clinica+pdf In PDF document text
    • http://kurevaka.instafiltersstory.com/uploads/1/3/0/7/130776760/4009069.pdfIn PDF document text
    • http://files.rootsboutique.shop/uploads/1/3/1/4/131407278/7276178.pdfIn PDF document text
    • http://vitex.weegather.com/uploads/1/3/0/7/130739379/saziwofuze.pdfIn PDF document text
    • http://files.urbanmilan.com/uploads/1/3/0/7/130739067/nopebomaruzeb.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/1/0440/2449/6286/files/brasart_320_bula.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/4506/9724/files/focas_1500c_bilge_alarm_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/7787/6377/files/guxidirujikazomaxululin.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/0765/3526/files/68251742443.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9681/0396/files/rewrite_exercises.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0444/1587/7287/files/40991051608.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3701/5719/files/2923505147.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6343/5679/files/17933145304.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3631/9639/files/medical_terminology_questions.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/4209/2694/files/devitejefumoxapufin.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6227/1898/files/tonid.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 3

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_off00008585.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8585 5456 bytes
SHA-256: e56cdfe7adbd104e08d958b4c7617c4b02ab8d79b8ef8fb782223bfbaa58a58a
font_01_sfnt_off00009823.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9823 11032 bytes
SHA-256: 9b3c72e6dfab2ff49c4b0bd1fe1d3431fe6ca503b0693538dda242ed1da9a90a

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