Malicious PDF — malware analysis report

Static analysis result for SHA-256 4265bf2a8e95b220…

MALICIOUS

PDF

45.6 KB Created: 2020-08-14 23:38:05 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 670910c854f2910f856382435453c35d SHA-1: ee60143d1d38b22e89cddb01b7792425dc1a63d4 SHA-256: 4265bf2a8e95b2209501f1b3fdb7aaf1741781dbb5eb3d7ae6e750357cbf0af7
202 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'ttraff.ru'. Additionally, it exhibits characteristics of a PDF link farm, with numerous embedded links, many hosted on Shopify. One of these links, 'https://cdn.shopify.com/s/files/1/0432/4153/7696/files/wajimixojage.pdf', is also listed as an IOC. The document body contains obfuscated text and a reference to the malicious URL, suggesting an attempt to disguise the malicious intent. The presence of a download button heuristic further supports a lure-based attack pattern.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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=eastern+nc+saltwater+fishing+report In PDF document text
    • http://files.valuetrainsusa.com/uploads/1/3/1/6/131636825/740c75f538b0.pdfIn PDF document text
    • http://files.lemonpatches.com/uploads/1/3/1/4/131408170/0285e64c22228.pdfIn PDF document text
    • http://files.shop.crystalcoastcoffee.com/uploads/1/3/1/3/131379268/tirisubujopewanaz.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/1/0432/4153/7696/files/wajimixojage.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4111/9653/files/chemistry_book_for_high_school.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/5269/3669/files/fewoberoleruxesabor.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/1887/7090/files/75208178257.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6874/4099/files/16140257064.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/2964/0854/files/77479224659.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0441/4255/9384/files/23772037654.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8239/1451/files/420660526.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/7299/2918/files/debuki.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_off00006866.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6866 5328 bytes
SHA-256: bc42f6857d90d1991688b55b1a4a425c799f1b1408f96d6640eed447fe8447ed
font_01_sfnt_off00007a90.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7A90 15188 bytes
SHA-256: 108211f14b28a8ef065fcccdf9f9a4d6b3a00ecacd1aecfade1f461bacc57826

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