Malicious PDF — malware analysis report

Static analysis result for SHA-256 5bfd2e7e0c0b94b5…

MALICIOUS

PDF

42.3 KB Created: 2020-08-05 09:39:14 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: f9d57e3a1cd81edf6db2888c3766d1e0 SHA-1: 8db5ca41397b68e361024d96cc8c7b9bd431c56e SHA-256: 5bfd2e7e0c0b94b5f0ddec77ebc00c3989bcc8319b5cdacc10f4bc82e865132b
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous links to an SEO redirector, which is a common tactic for phishing and malware distribution. The primary redirector URL, 'https://ttraff.com/pify?keyword=disadvantages+of+systematic+sampling+pdf', is flagged as malicious. This indicates the file is designed to trick users into visiting a malicious site under the guise of providing a 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.com/pify?keyword=disadvantages+of+systematic+sampling+pdf In PDF document text
    • http://files.inthelaughterlocker.com/uploads/1/3/2/6/132695714/fd8e1a7d90.pdfIn PDF document text
    • http://files.kendrathomastravaille.com/uploads/1/3/0/8/130813781/vowebolulixemuzug.pdfIn PDF document text
    • http://xajerakij.aznstra.com/uploads/1/3/1/3/131379362/984ea55297c160.pdfIn PDF document text
    • http://files.seryklee.com/uploads/1/3/2/8/132815008/rodowadivarajodub.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/1/0428/9835/8432/files/76102764406.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5565/1743/files/gesewesafagozaliwubojos.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7228/3033/files/github_deploy_keys.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8184/2332/files/niwomulibudumatu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0859/7927/files/sezari.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5114/7676/files/94626925656.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9019/8180/files/diwusoziguneri.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9262/3001/files/safuwovirosabegofurufe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/pamuzinesikajojefex.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9014/0583/files/56269075777.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3038/8642/files/87953022547.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 7

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_off00006763.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6763 5540 bytes
SHA-256: de0bbdda82b4cf80a2e48ec0afd48f610e4c160d340263d5a30e2255f283654d
font_01_sfnt_off00007a4f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7A4F 9980 bytes
SHA-256: 729b041eb105acfbf277131f46dd61028416dfe52c6bbca2426f244ba7762d80

Open this report in the interactive analyzer, or submit your own file for analysis.