Malicious PDF — malware analysis report

Static analysis result for SHA-256 0fd5c69048a6931b…

MALICIOUS

PDF

39.3 KB Created: 2020-09-20 04:37:25 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 42d24cd5937b42df36af1a06cda90537 SHA-1: dfd00f090486481445e97e3a720dfebe0dfbc9dd SHA-256: 0fd5c69048a6931b7adac8c0076df2a75d947acb3e0078cbf3c0c9ac91794ddf
194 Risk Score

Malware Insights

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

The PDF contains multiple embedded links that point to redirector infrastructure, specifically identified by the PDF_MALICIOUS_REDIRECTOR_LINK and PDF_SEO_LINK_FARM heuristics. The primary redirector URL is https://ttraff.club/wix?keyword=delta+force+student+discount, which is likely used to obscure the final malicious destination. The document body, though heavily obfuscated, contains similar URLs, suggesting a phishing or scam attempt to trick users into clicking through to potentially harmful 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.club/wix?keyword=delta+force+student+discount In PDF document text
    • http://zusukef.styestreatment.com/uploads/1/3/1/4/131482975/19b71ccae4e84d.pdfIn PDF document text
    • http://files.randolphgardenclub.org/uploads/1/3/1/8/131856125/8713147.pdfIn PDF document text
    • http://files.marenerji.com/uploads/1/3/0/8/130874493/bobuzilowugowetag.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/1/0435/3340/2266/files/kala_song_lyrics_in_tamil.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7751/6955/files/48483242245.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0029/8648/files/xodoxinezusaxije.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0482/0513/6024/files/my_time_at_portia_museum_checklist.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2439/2087/files/jiwugemo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0483/9695/9901/files/knights_and_dragons_hack_2019.pdfIn PDF document text
    • https://b221ac99-8483-4bc3-aba0-1c780a3c0db1.filesusr.com/ugd/48f461_3df85639e6a74ef4878ffad7ea68cf9f.pdf?index=trueIn PDF document text
    • https://22bd3403-01d3-439d-ae6b-8562f4e5ae95.filesusr.com/ugd/33a2e4_e025b2edac224d719781d968d07aeac8.pdf?index=trueIn PDF document text
    • https://f09c942c-df50-485e-af9e-7e2511a09ed6.filesusr.com/ugd/3ed902_d519895f0e654193889de36e7cb23eb0.pdf?index=trueIn 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 2

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_off00005c5d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5C5D 5012 bytes
SHA-256: 7206efeb7e24fc5595bb0715c488911067200acd5dd738ecab940bd020c75996
font_01_sfnt_off00006d7e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6D7E 10364 bytes
SHA-256: 972ce143ab33629d0cff17656e541aa182735f6a0c05d2990d81b55c69682a1c

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