Malicious PDF — malware analysis report

Static analysis result for SHA-256 c0259505a78c8f4e…

MALICIOUS

PDF

107.7 KB Created: 2020-07-31 20:47:20 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: e9b430a79bcd5d5b4f66879d22ec3a9d SHA-1: f7aad6488d01d049c34cc495e85b0de90620b3ee SHA-256: c0259505a78c8f4ec99cca1f24b2b486c8872b8404b86921e1863b423580316c
234 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.001 Malicious Link

The PDF file contains a heuristic firing for a malicious redirector link, pointing to 'https://ttraff.ru/pify?keyword=abode+flash+11'. Additionally, it exhibits characteristics of a browser extension/update installation lure, indicating a social engineering attempt. The document body, though heavily obfuscated, contains the URL 'https://ttraff.ru/pify?keyword=abode+flash+11', reinforcing the malicious intent. The presence of numerous PDF links suggests an attempt to distribute further malicious content or engage in SEO manipulation.

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.
  • Browser extension / update installation lure high SE_BROWSER_INSTALL_LURE
    Document tells the user to install a browser extension, plugin, viewer, or browser update to view content — a common social-engineering path for credential theft and malware installation
  • 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=abode+flash+11 In PDF document text
    • http://files.lemoulinetcollection.com/uploads/1/3/0/7/130776795/8872326.pdfIn PDF document text
    • http://files.erictigley.com/uploads/1/3/1/3/131384771/kogugazanode.pdfIn PDF document text
    • http://files.mirandalarayne.com/uploads/1/3/2/7/132740541/potega.pdfIn PDF document text
    • http://files.brasbyconstruction.com/uploads/1/3/2/6/132681456/73706.pdfIn PDF document text
    • http://files.woodworkslexington.com/uploads/1/3/2/7/132710783/0ab6400d5af9a0.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/1/0433/3672/8726/files/vuxipobedomumupaguzeg.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4542/8122/files/78597020778.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6702/3253/files/78285518522.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/0191/2224/files/gipabebaboxagolide.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0877/7637/files/11720202300.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7854/1722/files/kizetavuvojumafoxuwo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/8976/5279/files/74366772402.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4886/9786/files/48388820749.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/6980/9564/files/banalaxi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8285/8144/files/kusikaluni.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8469/3160/files/97750084042.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

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0001409e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1409E 10160 bytes
SHA-256: 86443f8dfadacd3d15bddf7e931dec5e99df10190998207bd1cc29ed1ab6332b
font_01_sfnt_off00016235.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x16235 5080 bytes
SHA-256: f501921bd3b49bb731fbc230b80abeccf94dc5d9f436053f9865390088a274db
font_02_sfnt_off00017382.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x17382 14332 bytes
SHA-256: ef98c187213f47430a6740bf56ab9d45c84f454e225e8b2e004d02a7c802110b