Malicious PDF — malware analysis report

Static analysis result for SHA-256 0f0a4783ea36e694…

MALICIOUS

PDF

42.4 KB Created: 2020-08-05 00:09:22 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: bb299111153ff7e183c97616e2c1339f SHA-1: ba1f64cd64cf191769c3171b18059fba149b5ecf SHA-256: 0f0a4783ea36e694e3e4e97daa7fe063611fcb6fa25a173f8d50f17775645957
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains numerous links to external resources, many of which are hosted on Shopify and appear to be part of a link farm designed to attract users searching for specific documents. The primary redirector URL, https://ttraff.ru/pify?keyword=free+download+asme+section+ix+pdf, is flagged as malicious and indicative of a phishing or scam operation. The document body, though heavily obfuscated, contains the same lure text and URL, reinforcing the malicious intent.

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=free+download+asme+section+ix+pdf In PDF document text
    • http://files.cmoseleymusic.com/uploads/1/3/1/4/131438313/rurojibimilix_dunox_waxas.pdfIn PDF document text
    • http://files.jaxmta.org/uploads/1/3/1/1/131164479/dd11544a18286.pdfIn PDF document text
    • http://files.convictedprinting.com/uploads/1/3/1/8/131871518/vazevavumina.pdfIn PDF document text
    • http://files.rangersafc.co.nz/uploads/1/3/0/7/130775135/bosese.pdfIn PDF document text
    • http://gudirawow.painterly.shop/uploads/1/3/1/8/131872269/zowawifom.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/1/0433/7270/7990/files/67889521.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5067/2026/files/jegaxa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/1347/8312/files/36327988508.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/5130/0517/files/zabedamusajone.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7227/5103/files/nobokaraletawametube.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3531/9711/files/5527677245.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3103/5047/files/kabbalah_black_magic.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6535/1071/files/suruxolujes.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9464/6688/files/52933247036.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6090/4615/files/resujulonegagiro.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_off00006680.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6680 5416 bytes
SHA-256: fc0ae2e956f076b45b5014f0fa079182570e1bf83d01ee02772dd552f59f6497
font_01_sfnt_off000078f4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x78F4 10760 bytes
SHA-256: 01484a240ec15962b0990383676c13db3622d66f29a7a9cfd9c478019e98a023

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