Malicious PDF — malware analysis report

Static analysis result for SHA-256 e2779a0b53e2bbd8…

MALICIOUS

PDF

37.8 KB Created: 2020-08-19 07:01:10 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 0ccad321d3fa0cf2a4f04499146736b2 SHA-1: e272182dc6aa60285300dcb1891502d552803238 SHA-256: e2779a0b53e2bbd896e4cdc3378fa655abe59d8d93aa80c84e34dca4515b4293
194 Risk Score

Malware Insights

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

The PDF file exhibits characteristics of a link farm, containing numerous embedded URLs. One critical heuristic identified a link to known malicious redirector infrastructure at 'https://ttraff.ru/pify?keyword=bradmin+professional+utility'. While many other links point to benign Shopify domains, the presence of the malicious redirector and the sheer volume of links suggest a malicious intent, likely for SEO manipulation or to host further malicious content. No scripts were extracted from this sample.

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=bradmin+professional+utility In PDF document text
    • http://files.travellifegoal.com/uploads/1/3/1/3/131379980/zidowuxar_zawabibaxupugen_polujirajesixas_mixurij.pdfIn PDF document text
    • http://files.onegoverningbody.com/uploads/1/3/2/3/132303406/posupekakijuz.pdfIn PDF document text
    • http://files.dbyj.com/uploads/1/3/1/3/131383580/memomaxo.pdfIn PDF document text
    • http://files.thetntmteam.com/uploads/1/3/1/3/131382395/9052969.pdfIn PDF document text
    • http://files.mysweetblueshop.com/uploads/1/3/0/8/130814387/4332766.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/1/0429/2768/5799/files/dedokovabekosexi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2313/0009/files/42227416631.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/80084587067.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1322/6139/files/hitachi_absorption_chiller_catalogue.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7205/2643/files/4854803309.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6509/8908/files/finaledupe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1756/0473/files/dominating_sword_immortal_novela_espaol.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0200/3615/files/74463201415.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9186/1410/files/1474140746.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 8

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_off000056b0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x56B0 5336 bytes
SHA-256: 2f53066a5168b1233f7f3c7ae551e2d4b89d58f8231491f63b49d2f76ed85b13
font_01_sfnt_off000068c7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x68C7 9912 bytes
SHA-256: eaa63aefa67f3f807f45c667b36a0918d00611b9a9d3b5a6a4e5a57e54dcd196

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