Malicious PDF — malware analysis report

Static analysis result for SHA-256 d8e3f9e627db6c56…

MALICIOUS

PDF

51.2 KB Created: 2020-08-07 00:55:45 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 5ced82fdf174ef706dda4320a6803087 SHA-1: 5120122d40a799837191054ac4023159e72e200d SHA-256: d8e3f9e627db6c5667151b8d440156d750d80ad61bc0d50341dc438b80c11cdf
194 Risk Score

Malware Insights

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

The PDF file contains numerous embedded links, with a critical heuristic identifying a malicious redirector at 'https://ttraff.ru/pify?keyword=examples+of+self+appraisal+comments+pdf'. This suggests a phishing or redirection attack, aiming to lead the user to malicious infrastructure. The document body, though heavily obfuscated, contains the same URL, reinforcing its role as a lure. The presence of multiple Shopify URLs indicates a link farm strategy.

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=examples+of+self+appraisal+comments+pdf In PDF document text
    • http://files.alicehjones.com/uploads/1/3/2/6/132681507/7517035.pdfIn PDF document text
    • http://files.thibodauxdrivingschool.com/uploads/1/3/1/8/131856476/9073959.pdfIn PDF document text
    • http://files.treeoflifehypnosis.net/uploads/1/3/2/6/132681212/dunefo.pdfIn PDF document text
    • http://files.drbouck.com/uploads/1/3/0/7/130740196/7166d1cf63f.pdfIn PDF document text
    • http://files.prakrutischool.in/uploads/1/3/1/4/131437807/63c44ffeef93e.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/1/0431/9775/9643/files/59917029843.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6113/2968/files/potovuzepalejajuguzurot.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/41841620016.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/4793/4359/files/sociology_journal.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6522/1028/files/64561946523.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/3062/3894/files/pumukites.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2216/3876/files/lalow.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/8470/7992/files/bolijijujitu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1104/6558/files/71814165139.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/5932/8662/files/bedikuxorafenirupavagaw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6528/6566/files/nosafirusajej.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/8634/6408/files/68824650783.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8787/9580/files/fonizuxamudaperepa.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_off00008ade.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8ADE 5328 bytes
SHA-256: c0b615ae272da694712e1ea75c06650f1d2a2b6a2062e523ab0d95b60d36de25
font_01_sfnt_off00009ce9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9CE9 10088 bytes
SHA-256: 6013c7a737ce8edc6d9f9b5bec0f5f9b0ac37528ed2c4dc4781466dd459cf1a5

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