Malicious PDF — malware analysis report

Static analysis result for SHA-256 2c5f0f31a7b913db…

MALICIOUS

PDF

45.3 KB Created: 2020-08-09 20:39:22 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 6a8d76e6210cc2a7a62a212f554d61b1 SHA-1: 199cdb3c56020e56b43eedded4dfb2b2f9df6512 SHA-256: 2c5f0f31a7b913dbb52d7be4be7d3c7e98f19bb603ad4b6efd2f1e51fa4662c5
194 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many of which point to a link farm hosted on cdn.shopify.com. One of the primary links directs to a known malicious redirector at ttraff.ru, disguised with a keyword search for 'autumn leaves partitura pdf real book'. This suggests a phishing or scam attempt to redirect users to malicious content. No scripts were extracted from this sample.

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=autumn+leaves+partitura+pdf+real+book In PDF document text
    • http://files.hospicecareteam.org/uploads/1/3/2/7/132740958/zerezonulum.pdfIn PDF document text
    • http://vatugesaw.currantcreekoutfitters.net/uploads/1/3/1/1/131163599/tifozeribep.pdfIn PDF document text
    • http://files.menardcountycemeterymd.com/uploads/1/3/0/7/130775837/vokoxun.pdfIn PDF document text
    • http://files.vermontcustomfitness.com/uploads/1/3/2/7/132740586/3521859.pdfIn PDF document text
    • http://mifujowe.holistichealingacu.com/uploads/1/3/1/3/131398140/7913851.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/1/0433/4885/2894/files/angioedema_facial.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6346/0508/files/44396683198.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/39646295774.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0425/4615/files/84059727536.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/5413/5456/files/2020_canadian_calendar_printable.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6422/2101/files/86943895890.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4649/3605/files/nutem.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8702/6581/files/texulovivosubemupegina.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7300/2906/files/95557891485.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8475/9711/files/pomezadelinemu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/18187133080.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 5

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_off00006594.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6594 5440 bytes
SHA-256: 659d574c4477ee5f169114607a9a24768744b7bb116d4d7f115b5a79558c3bc0
font_01_sfnt_off00007803.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7803 15560 bytes
SHA-256: 5166f9c1c4a61d503da5028318aeb5bd1b91f3df230f8559de02ea723876b65d

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