Malicious PDF — malware analysis report

Static analysis result for SHA-256 26ef2e550d896b39…

MALICIOUS

PDF

44.4 KB Created: 2020-07-30 13:07:11 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: 9a061cfd4b48bddaa292c52498d606cd SHA-1: bb9d9a463ab643ddd69e894bcb446d35a1117da8 SHA-256: 26ef2e550d896b39c5afb1cd0127a6c610a4e46a2310d65e99a54631d3643db7
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains numerous embedded links, with the primary link directing to a known malicious redirector. The document body, though heavily obfuscated, suggests a lure related to creating PDF books in Photoshop. The heuristic firings confirm the presence of malicious redirector links and a link farm, indicating a phishing or SEO poisoning attack.

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=how+to+make+pdf+book+in+photoshop In PDF document text
    • http://files.refugefriends.org/uploads/1/3/1/4/131454106/zaget-noxepivi-fakimidod-ximitiwozoxi.pdfIn PDF document text
    • http://files.trustinrealestate.com/uploads/1/3/1/4/131437685/4151154.pdfIn PDF document text
    • http://files.mulyouth.org/uploads/1/3/2/8/132815220/mokevu.pdfIn PDF document text
    • http://files.virtualpowerplants.ca/uploads/1/3/1/4/131453114/basubifetudisasigo.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/2857609843.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9853/0201/files/99655098078.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4155/3575/files/kifex.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/zututekafufefosapebuk.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3459/0878/files/losimudegitidejudiku.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1122/7300/files/39933196809.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0736/9639/files/sikugubavesekegaxom.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/7311/9143/files/84117000416.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1140/0102/files/goxorawepedifolago.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6300/0734/files/33804122169.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9291/7924/files/xikigupivajafobodatowa.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_off0000702a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x702A 5200 bytes
SHA-256: a83b9460f3f474e921f898ad959fc5bd1f58d2efb898f1a6853c392c137b23f5
font_01_sfnt_off000081b3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x81B3 10296 bytes
SHA-256: 042bb8935177ecabaf345a5724bb7063b4df5f24069ffe4277e59e4c162c3e6f

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