Malicious PDF — malware analysis report

Static analysis result for SHA-256 5cb59cd226b29559…

MALICIOUS

PDF

40.6 KB Created: 2020-08-01 11:49:28 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 7ee72808c982309aa001681c74d99248 SHA-1: 940dc0bd89f2d15eee3f7d9099ccfc1740e7f888 SHA-256: 5cb59cd226b29559ea6872d77ff02116b3a4a5a9cc3ae88680bc95c4d393c2df
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains a link farm and a redirector URL, indicating a phishing or scam attempt. The embedded link `https://ttraff.ru/pify?keyword=sublime+sublime+zip` is identified as a malicious redirector, likely leading to a malicious payload or phishing page. The document body, though heavily obfuscated, contains references to the redirector URL, reinforcing its malicious intent.

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=sublime+sublime+zip In PDF document text
    • http://files.sioceansidecarlsbad.com/uploads/1/3/0/8/130874658/tafupel.pdfIn PDF document text
    • http://files.911bodyresq.com/uploads/1/3/0/7/130776118/natarudul-wasawebi-pifag-nisaneneduk.pdfIn PDF document text
    • http://files.melfair.com/uploads/1/3/0/8/130813694/77f95ac64.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/1/0431/9395/8560/files/lirumofibaralixavixane.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5346/6271/files/nazesajitenodemegevobina.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2717/7380/files/kefezodokas.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6656/4507/files/26416091795.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9762/9596/files/vebevafoxevatonesuf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1415/1589/files/46225519176.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/49893706483.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0879/4530/files/3295894892.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1234/9334/files/61526983683.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1991/0820/files/45407539724.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000605c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x605C 4952 bytes
SHA-256: c14e787e8dff54cfc3747dc290c6844acf0b1a310c4ed59cf047a20ec3c83d6d
font_01_sfnt_off00007128.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7128 10848 bytes
SHA-256: 29131eebacfca2638dd791daf0924333064b7736e0939387e63daffa739b0b87