Malicious PDF — malware analysis report

Static analysis result for SHA-256 2481124cbe6bad00…

MALICIOUS

PDF

50.5 KB Created: 2020-08-25 06:53:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 1f4eb14cd45b162beec3ec9a4c97a6a8 SHA-1: f054c4c500ec33da1b77623d22972ff4d8f0a592 SHA-256: 2481124cbe6bad008e042b837ed9c2f210f369254f189860ead597f166641f3d
194 Risk Score

Malware Insights

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

The PDF contains multiple embedded URLs, with one identified as a known malicious redirector. The ML classifier strongly flagged this PDF as malicious. The presence of numerous links, including those hosted on potentially compromised Shopify domains, suggests a link farm or SEO poisoning tactic to distribute malicious content. The primary malicious URL identified is https://ttraff.ru/pify?keyword=bronkitis+dewasa+pdf.

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=bronkitis+dewasa+pdf In PDF document text
    • http://rabifezo.stagcoffeecardiff.com/uploads/1/3/1/3/131380739/0c3ed67c33d4f.pdfIn PDF document text
    • http://ropafexip.aspiremountainacademy.com/uploads/1/3/1/4/131454807/siwezogevesete.pdfIn PDF document text
    • http://files.teamgerbs.com/uploads/1/3/2/3/132302910/folekelapelu_gajefowi_narubasaderevaj_fubojif.pdfIn PDF document text
    • http://toxig.berwickpsychologyandhypnosis.com/uploads/1/3/0/7/130776485/6441588.pdfIn PDF document text
    • http://girezafo.mazopublishers.com/uploads/1/3/1/8/131856080/9885688.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/1/0434/3952/1958/files/buku_ahmadiyah.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/nisexabidubukov.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8706/8322/files/ionic_compound_practice_worksheet_key.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0883/5229/files/pizubabojipiwo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/9522/6523/files/frank_ocean_thinking_about_you_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7153/6285/files/4790._2c_chapter_10.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/0718/6843/files/63435925870.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7892/7014/files/23897539491.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_off0000884b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x884B 5208 bytes
SHA-256: c636dd7ddf2c77b50ca83e08b7545e22cc27059f69df78dd95285fc80f576086
font_01_sfnt_off00009a2a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9A2A 10264 bytes
SHA-256: 752034054554faf6ddcfe325ff91dfdf92d7a0d44a5e54552c33715257d92515

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