Malicious PDF — malware analysis report

Static analysis result for SHA-256 e5bea08aae2c25b1…

MALICIOUS

PDF

41.3 KB Created: 2020-08-25 18:15:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 658940e060be23c86306a7b516ee12be SHA-1: 0c1292870ef82bae439583b72c6e2ac437ae2bf4 SHA-256: e5bea08aae2c25b106259e8745b663b97823f8835e78f87dc3911dd6bc91070c
194 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, with a critical heuristic firing for a malicious redirector. The primary malicious URL identified is https://ttraff.ru/pify?keyword=how+to+diagnose+and+repair+automotive+electrical+systems+%2528motorbooks+workshop%2529. The document appears to be part of an SEO poisoning or phishing campaign, leveraging a link farm to distribute malicious content.

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=how+to+diagnose+and+repair+automotive+electrical+systems+%2528motorbooks+workshop%2529 In PDF document text
    • http://files.mrragersblog.com/uploads/1/3/0/7/130739810/wotasa-ranatusesafefi.pdfIn PDF document text
    • http://lizalal.rachelhenson.com/uploads/1/3/1/4/131453960/wimupibixozotet.pdfIn PDF document text
    • http://files.heritagephilharmonic.org/uploads/1/3/2/8/132815172/a635ec.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/1/0432/2613/6731/files/xafivelusoxuzuvanotiga.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/wifufokamavobopizevotug.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1317/6469/files/the_bloody_countess_alejandra_pizarnik.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0441/3066/4600/files/13928686703.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4923/8178/files/tipejuz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2906/1032/files/36088381549.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/4333/8912/files/pesepu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8991/2218/files/31840045030.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9197/5580/files/beer_pasteurization.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_off00006278.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6278 6060 bytes
SHA-256: 0bfa841ed96ed55e495733864bb5a341cb2703f76084ac9208a96e7abd0e3d0c
font_01_sfnt_off00007714.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7714 9448 bytes
SHA-256: 689a68943e054bea1ec4b440a115c58c5c5391ddd17f072bd806625c7279be1b

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