Malicious PDF — malware analysis report

Static analysis result for SHA-256 c82e7a6545af0bc0…

MALICIOUS

PDF

41.0 KB Created: 2020-08-23 15:54:35 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: 9c2f4258dbadf90efc3641be12ce5d19 SHA-1: 3f5189d9bb3523b833f3aa07c0333e31740591e4 SHA-256: c82e7a6545af0bc0380d200719125b45ed917ce2cb713d1dadc903a7f020b353
194 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for a malicious redirector link, pointing to 'https://ttraff.ru/pify?keyword=uninor+internet+manual+setting'. Additionally, it exhibits characteristics of a PDF link farm, with numerous embedded links, many hosted on cdn.shopify.com. The document body, though heavily obfuscated, contains the same malicious URL, suggesting an attempt to disguise malicious content as a manual or informational document.

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=uninor+internet+manual+setting In PDF document text
    • http://files.bunchwashington.com/uploads/1/3/0/7/130739810/jizet.pdfIn PDF document text
    • http://zilezoze.investwithsmdc.com/uploads/1/3/2/8/132814956/zutuzifixi.pdfIn PDF document text
    • http://sebopenat.omninsw.waggamatters.com/uploads/1/3/1/8/131857120/zejenosatiza.pdfIn PDF document text
    • http://files.adf64.org/uploads/1/3/0/8/130874329/xatulifa.pdfIn PDF document text
    • http://zubekuzi.nhsjrotc.com/uploads/1/3/1/3/131379434/sonavixonev.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/1/0435/7508/3167/files/kuxibulav.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0877/7637/files/18045420199.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0625/4494/files/street_fighter_3_2nd_impact.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4135/6950/files/5004636061.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8918/3398/files/10057431519.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0883/5229/files/lobufero.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3646/7612/files/gozoxuzawupakevenogid.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1520/9123/files/61197687103.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_off00006126.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6126 4996 bytes
SHA-256: d440ffef73e64b84a10001a1df245890f6adacc197ad2a26230b477e3048e929
font_01_sfnt_off00007206.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7206 11320 bytes
SHA-256: 34804201a47a1cef8d3d41040edda98379de7f4af0e900587e5a5d7e127fd193

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