Malicious PDF — malware analysis report

Static analysis result for SHA-256 c14c54e6aa682282…

MALICIOUS

PDF

49.6 KB Created: 2020-07-27 16:31:58 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 020353ef0acc87528675b91f89d1bf8e SHA-1: 712a354e85dc0bdb2af3d0c3b98ab62046781e17 SHA-256: c14c54e6aa682282c81fd704085cc7962034d78e97b01c25a35c429e25332b72
194 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 features a PDF link farm heuristic, indicating a large number of outbound links, many hosted on cdn.shopify.com. The ML classifier also strongly flagged this PDF as malicious. The document body, though heavily obfuscated, appears to contain metadata related to 'wkhtmltopdf' and a keyword search, suggesting a lure for potentially malicious content.

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=root+android+tv+box+l%25C3%25A0+g%25C3%25AC In PDF document text
    • http://files.listerfluidpower.com/uploads/1/3/1/3/131379719/xigaw.pdfIn PDF document text
    • http://files.eyretonponyclub.com/uploads/1/3/0/9/130969153/7674e0e5b687.pdfIn PDF document text
    • http://files.flouriche.com/uploads/1/3/0/7/130776611/a697518dd504.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/1/0438/5452/8677/files/48384656893.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/5906/7550/files/46082095176.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7587/0613/files/timutarame.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7206/1591/files/2833201054.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/4501/8017/files/kamapitosulako.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5627/5362/files/76898737793.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7614/8638/files/37379170691.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4021/0072/files/fugosu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7833/6165/files/73105700785.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2651/4077/files/40012371696.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8212/9320/files/32664844569.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 4

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_off0000837a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x837A 5048 bytes
SHA-256: 91e27e786de4f2f9417c131f612ca5d18f08453685d0073d3d955314062a0fc7
font_01_sfnt_off00009420.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9420 10316 bytes
SHA-256: 13ffc36e840b3515bf9312e1130687a4bc3e3a72183043b0f0c0cba709c27dfd

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