Malicious PDF — malware analysis report

Static analysis result for SHA-256 e80d0766ac29b436…

MALICIOUS

PDF

48.8 KB Created: 2020-07-28 19:14:16 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 5186812ef5b7f38448a7636eeeceb921 SHA-1: 9b73ffa27804101110fccd26278e8dce03ae75bf SHA-256: e80d0766ac29b436845f4cd142f74a9143eacc2c870111db8bb265c1a6d55f38
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.001 Malicious Link T1059.001 PowerShell

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'ttraff.cc'. Additionally, it exhibits a PDF link farm behavior, with numerous links to external PDFs, many hosted on Shopify. The document body, though heavily obfuscated, contains metadata suggesting it was generated by wkhtmltopdf. The primary attack pattern involves luring users to malicious sites via these links.

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.cc/pify?keyword=manualidades+por+navidad+2019 In PDF document text
    • http://files.mobileonegaming.com/uploads/1/3/0/7/130738710/24911e10608035.pdfIn PDF document text
    • http://files.lindberghforte.org/uploads/1/3/1/0/131070688/xemul.pdfIn PDF document text
    • http://files.elementsoflifeinstitute.com/uploads/1/3/1/4/131407890/wigepidifolutenilin.pdfIn PDF document text
    • http://files.bluewrenadventures.com/uploads/1/3/0/9/130969915/2f0ae85c83.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/1/0433/8742/0835/files/2885759774.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5863/4658/files/63639023697.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6017/4754/files/52474104274.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/mejamuzeditika.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2514/5760/files/jawumafi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2171/4079/files/24482758509.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7038/2490/files/58885943605.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1869/0458/files/63318440850.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/4916/5734/files/56838354873.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/77330784460.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9419/5870/files/71305331662.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9320/5916/files/3239537803.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_off00007f38.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7F38 5300 bytes
SHA-256: 94915b746f6fde84cba54854a2d4dbb4b2b2c5dc2fe3a734262a0a4d5342f421
font_01_sfnt_off00009142.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9142 10960 bytes
SHA-256: 4ccf590bd4c51d9571c5cd412b033317bece9fc9f9f3100a53c21b913bf3529a