Malicious PDF — malware analysis report

Static analysis result for SHA-256 3a33b715af07f04e…

MALICIOUS

PDF

39.5 KB Created: 2020-08-15 00:22:46 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: d524cd94070cb55387cbe643d07728c7 SHA-1: baffaad8cb303b2897f32da2fb86c62ba09ad9f3 SHA-256: 3a33b715af07f04e440f5d412948cdb8aa4cef796d9252bea4ff440126860e0a
194 Risk Score

Malware Insights

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

The PDF contains a significant number of embedded links, with one pointing to a known malicious redirector. The ML classifier also strongly indicated maliciousness. The document body contains garbled text but includes the URL 'https://ttraff.ru/pify?keyword=adelitas+way+alive', which is flagged as a malicious redirector. The presence of numerous external PDF links suggests a link farm or SEO manipulation tactic, potentially to distribute further malicious content or to obscure the true destination.

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=adelitas+way+alive In PDF document text
    • http://files.pentictonexcel.com/uploads/1/3/1/6/131636891/c66646b8.pdfIn PDF document text
    • http://files.proudlion.co.uk/uploads/1/3/0/9/130969637/585974417d05.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/1/0437/5219/4202/files/barbara_cartland_ebooks_free_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/8065/5775/files/zoguguv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6345/9496/files/28957958718.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8692/1376/files/begeguperofokebetirobavoj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8630/6710/files/35285931071.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3699/0885/files/kavopilagop.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6018/2692/files/39617109179.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/0770/3201/files/19878026059.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2805/4169/files/29709009727.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/51982080438.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
🗂 Part of campaign: ameliakatjohnson.com 5 samples

Related samples 3

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_off00005d04.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5D04 4964 bytes
SHA-256: 78dbaa133b1f428fdca893ce0de6dfcbdcd2266ed0579b9ad601a3b3353ff019
font_01_sfnt_off00006e11.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6E11 10440 bytes
SHA-256: 891beb0539827b262ec05ee55416c59b9ff37609b7b400b0f270195bef94b968

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