Malicious PDF — malware analysis report

Static analysis result for SHA-256 2650ed9da14401d5…

MALICIOUS

PDF

32.2 KB Created: 2020-08-21 17:39:46 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 6d6bf5e798b22f9ad9cf4f19fa19f149 SHA-1: 719281eb72e7ad21726a820d33b9dfb976bd48eb SHA-256: 2650ed9da14401d59ce4af9ecd58b0e46b8265933aa986b97e3f3b4bf13f3eb3
194 Risk Score

Malware Insights

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

The PDF file contains numerous embedded links, with a critical heuristic firing for a malicious redirector. The primary malicious URL identified is 'https://ttraff.ru/pify?keyword=joji+can%2527+t+get+over+you+free'. The document body appears to be corrupted or obfuscated, but the presence of the malicious link and the PDF_SEO_LINK_FARM heuristic strongly suggest an attempt to redirect users to malicious content, likely for phishing or malware delivery.

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=joji+can%2527+t+get+over+you+free In PDF document text
    • http://zenotap.codewisebc.com/uploads/1/3/1/4/131453945/5819515.pdfIn PDF document text
    • http://puwujal.rushhourbiomedical.com/uploads/1/3/1/6/131606349/8135866.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/1/0436/4887/6697/files/fezotavufu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9163/9974/files/chellame_chellam_endrai_song.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2207/3506/files/nisigotozoguzedalonuvin.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0462/4603/5607/files/97294885802.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7306/1532/files/61933487932.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9866/9220/files/77939863395.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1638/7733/files/building_planning_and_design_books.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5150/8131/files/53169750374.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2023/9519/files/58227809583.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5348/2138/files/63195114934.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1737/1801/files/66064876923.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1005/6615/files/23604251255.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 2

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_off00004136.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4136 5100 bytes
SHA-256: 2fde0f2fe719b1532fc2ffb3e68c9768fb6ca062b2851d8e26e7a6b25d82ada7
font_01_sfnt_off000052bb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x52BB 9764 bytes
SHA-256: 5fef7065445427d89f97ffb4553f6df974804e5cfac72cd4f8c820c246893203

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