Malicious PDF — malware analysis report

Static analysis result for SHA-256 fe658f5b179b9720…

MALICIOUS

PDF

35.9 KB Created: 2020-08-03 12:17:59 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 826710d8a077cb1973daccf7b317efe3 SHA-1: 634dafebab603b0031753f5830556bf664c2b679 SHA-256: fe658f5b179b9720cf23960c45226b50ee40bf8daaeba4287e82df5bdf325481
194 Risk Score

Malware Insights

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

The PDF contains a link to a known malicious redirector, ttraff.ru, disguised with a keyword related to song chords. It also exhibits characteristics of a PDF link farm, with numerous embedded links pointing to various external PDFs, many hosted on Shopify. The primary intent appears to be luring users to malicious infrastructure through deceptive links within the document.

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=ajarku+berdiam+chord+pdf In PDF document text
    • http://files.nswspruikle.com/uploads/1/3/1/4/131453592/xopogogatu_duxodazakizal.pdfIn PDF document text
    • http://files.londonambulanceservice-patientsforum.org/uploads/1/3/1/4/131454270/5d8a2e87f1.pdfIn PDF document text
    • http://files.kinneylmft.com/uploads/1/3/1/3/131398504/delutemasopikenedojo.pdfIn PDF document text
    • http://gerilis.travelbyrobins.com/uploads/1/3/2/8/132815002/558fe4.pdfIn PDF document text
    • http://files.insomnilacq.com/uploads/1/3/1/4/131454316/ce438c4ecec406c.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/1/0435/1783/7467/files/sibisufabelesuxafi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7940/1634/files/star_wars_force_and_destiny_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5681/6540/files/48423982014.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4077/6093/files/muwosuwuv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4818/9603/files/3297983035.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6381/2002/files/29358630515.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3124/8539/files/54125927048.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6750/6845/files/kagufuledepisal.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4015/2479/files/jipumatitinumaxadibaxo.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 7

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_off00004e1b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4E1B 5452 bytes
SHA-256: 9a9fc70c9de909822578bf825476a48f43d8fdc8fc0245c71dab65770cd66f73
font_01_sfnt_off00006085.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6085 10028 bytes
SHA-256: c4be484a6b639a64fc2a18d73e4171bb0ac8885d845309f0e7df2d5c65e43366

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