Malicious PDF — malware analysis report

Static analysis result for SHA-256 82f3d7a4dc5f3acf…

MALICIOUS

PDF

40.0 KB Created: 2020-08-14 19:16:55 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 511331f3ffd9213df417ca29db8851dd SHA-1: d0902431f291e701356ee7f3815b836f7ae7f187 SHA-256: 82f3d7a4dc5f3acf1e24a18881d02788f1a76fdcd19b113d6d5e501aa653eb89
194 Risk Score

Malware Insights

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

The PDF contains numerous links, many pointing to redirectors and SEO link farms, designed to trick users into downloading content. The primary redirector URL, 'https://ttraff.ru/pify?keyword=clumsy+ninja+mod+money+apk', suggests a lure for a game mod download. While no scripts were explicitly extracted, the PDF structure and embedded links strongly indicate a phishing or malware distribution attempt.

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=clumsy+ninja+mod+money+apk In PDF document text
    • http://files.teacherbattleplans.com/uploads/1/3/0/9/130969545/pukijazawi_kabudugoderetuf_kurokamevopat_pitulutaxekasup.pdfIn PDF document text
    • http://files.oakfamilycounseling.com/uploads/1/3/1/8/131856212/muviriledexegomuxo.pdfIn PDF document text
    • http://juravupog.clearwaterridingschool.co.nz/uploads/1/3/0/7/130776791/gukunedekidepopef.pdfIn PDF document text
    • http://xeditak.purplespirithealing.com/uploads/1/3/0/8/130813420/labasumovuk_rutido_viwux.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/1/0433/6081/3208/files/25734594081.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5661/7877/files/fortune_teller_guide_persona_5.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6130/4728/files/nicholson_microeconomic_theory.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5542/3396/files/creative_approaches_to_problem_solving_3rd_edition.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5843/8039/files/mcdougal_littell_algebra_2.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/neretidesalefadim.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3301/0081/files/antenatal_diet_health_education.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5802/8959/files/xavizipexorazifobaza.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9359/0167/files/66440778538.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_off00005f9e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5F9E 5156 bytes
SHA-256: ef2b60e2fc9f26bfadb54daedd647ca5633bb73fc26330365bde4dfcad2f4f30
font_01_sfnt_off00007120.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7120 10060 bytes
SHA-256: d548e75c373f45c343884663cb26588ea71b807fae4933bcad654291fb7d4009

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