Malicious PDF — malware analysis report

Static analysis result for SHA-256 27a0aa413da13b6c…

MALICIOUS

PDF

101.4 KB Created: 2020-07-25 17:12:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: d366f6def99491e2c1f4a773b09d30df SHA-1: 92930d7a320d41e472b4c345b6a113dde1939579 SHA-256: 27a0aa413da13b6c57d7a4a2ce4a554738bce2c7555dfb299c1186363d0b7c49
194 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many pointing to Shopify-hosted PDFs, indicating a link farm strategy. One critical heuristic identified a link to a known malicious redirector at 'https://ttraff.ru/pify?keyword=wajid+baghdadi+new+song'. The ML classifier strongly flagged this PDF as malicious. The document body appears to be malformed or obfuscated, preventing a clear understanding of its direct user-facing purpose beyond the malicious links.

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=wajid+baghdadi+new+song In PDF document text
    • http://files.authortaradawn.com/uploads/1/3/1/6/131606186/xosekibip_pewaximuwakewal_dazekezo_dusoku.pdfIn PDF document text
    • http://files.capstoneqs.com/uploads/1/3/1/3/131398336/vopis.pdfIn PDF document text
    • http://files.karoobirdingsafaris.com/uploads/1/3/1/8/131871572/233469.pdfIn PDF document text
    • http://files.tjackdoula.com/uploads/1/3/0/8/130814063/3862668.pdfIn PDF document text
    • http://files.cecilyscloset.org/uploads/1/3/0/7/130775441/9323173.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/1/0430/6799/8359/files/33300843551.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8937/9993/files/39695516111.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2520/3354/files/bugelokujenezuxidu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8311/1323/files/41995433806.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3583/6059/files/dejodow.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6911/2474/files/60350431129.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8574/8642/files/95938682029.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3335/4659/files/92146016566.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/7524/7003/files/rukemefawaw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5649/5783/files/27185342685.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3108/4712/files/mowititazigenewegopusewat.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0963/7530/files/74022684530.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_off0001486d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1486D 4988 bytes
SHA-256: 3dc8ef5c961fc328ef98ab005be196129efa3e0f13fde4ec592ca2afea4ad872
font_01_sfnt_off00015967.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x15967 14904 bytes
SHA-256: f05eb39a1f700a678cfedac2b418ad0e11b83101e29b285fece6db90eecec738

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