Malicious PDF — malware analysis report

Static analysis result for SHA-256 6901c6ba9f08ec58…

MALICIOUS

PDF

47.7 KB Created: 2020-08-11 14:09:00 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: e0396e11a7fcffe0e53db51e76083617 SHA-1: 6a6dac381a1e4644acb769382cdf523ec5a8b05d SHA-256: 6901c6ba9f08ec5889ea14d860637085cd43f93b376736798d9182a4773a9672
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous links, many of which point to a redirector service (ttraff.com) that is known to host malicious content. The document body, though heavily obfuscated, contains a URL that is also present in the heuristics, indicating a likely phishing or malware distribution attempt. The presence of a large number of SEO-optimized PDF links suggests an attempt to generate traffic and potentially distribute malware through deceptive means.

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.com/pify?keyword=buscopan+injetavel+bula+pdf In PDF document text
    • http://files.aomskw.com/uploads/1/3/1/8/131856071/8269911.pdfIn PDF document text
    • http://meribez.cutiepiepampering.com/uploads/1/3/1/3/131378950/komalin.pdfIn PDF document text
    • http://gedin.moiraosullivan.com/uploads/1/3/2/6/132682883/gisajabip.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/1/0431/5847/0813/files/wuvixenanamukuvugi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8606/1480/files/negolebopine.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8181/7495/files/kowixevabedatigokipuko.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8023/6702/files/juzenesigod.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/7245/2776/files/linear_algebra_hoffman_solution_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/4574/6848/files/gumuzujapodadu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6826/8456/files/96003659147.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6596/6754/files/niparugovelew.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6811/9445/files/mamilogakolofofudajafotu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/5529/8213/files/77668017815.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9113/2577/files/tijedezusimipug.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5095/1066/files/kipafunizemuwanoruxaxo.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 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_off00007c56.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7C56 5380 bytes
SHA-256: 04bdf75d5d3bc681a2589697c7e2398d681cbc9496d8a0bce59c263a93c91c7c
font_01_sfnt_off00008eb7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8EB7 10568 bytes
SHA-256: cf1d66f042b068f6a10ef135f9e9dedd715ade995e59a76f0c89f3acc032d892

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