Malicious PDF — malware analysis report

Static analysis result for SHA-256 04708f33d6d155de…

MALICIOUS

PDF

35.5 KB Created: 2020-08-23 09:03:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 8ef23ca6036ecfd5a23ff08a463f8fcc SHA-1: 0e69dc6965e09e89cd4c5efc17433384902610f5 SHA-256: 04708f33d6d155de5703e9e8c9f01e8569cf44c95b466ac2f291bb1decba5afe
194 Risk Score

Malware Insights

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

The PDF contains multiple heuristics indicating malicious redirector links and a link farm, suggesting it's designed to lead users to potentially harmful content. The document body, though heavily obfuscated, contains a URL that matches the malicious redirector found in the heuristics. The presence of embedded URLs and the ML classifier's high confidence score further support the malicious nature of this document.

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=one+piece+online+2+pirate+king+guide In PDF document text
    • http://basujup.stchrislocker.com/uploads/1/3/0/8/130813765/d6ea6c1c7b030.pdfIn PDF document text
    • http://files.deepaklalsaini.com/uploads/1/3/1/1/131164130/09a06035bc7e0a.pdfIn PDF document text
    • http://kavawufod.royaltyscholar.com/uploads/1/3/1/8/131857054/mepodajivupirowema.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/1/0431/5663/5804/files/accessibility_checker_fors.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8228/5216/files/food_for_thought_answer_key.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6318/9405/files/best_free_dvd_burning_software.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7294/5312/files/immigration_police_report.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9178/7937/files/chahat_full_movie_movies_counter.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5794/6519/files/69698619179.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/9919/9390/files/42036720233.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6459/7397/files/liranokunotitimasukixozo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8794/4096/files/49086859502.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2173/7882/files/binawabojafukizupobavawib.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6528/6564/files/baptism_certificate_template.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
🗂 Part of campaign: stchrislocker.com 5 samples

Related samples 6

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_off00004c71.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4C71 5284 bytes
SHA-256: b383ae85feb935dad99caaafc0a6fb957ebc71f51add2e4e9b9901088d91c4f4
font_01_sfnt_off00005e72.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5E72 10220 bytes
SHA-256: a7b5c2a7718b735830fcf626df83648cdc3b5872fe981382d902dc5e50ec7d40

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