Malicious PDF — malware analysis report

Static analysis result for SHA-256 82ed9dc795b8612b…

MALICIOUS

PDF

41.9 KB Created: 2020-10-07 16:05:13 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 23f14ccb58be862c05d2a872d8b83b87 SHA-1: 1ba2fd52559b452ebf4409b724ac271eb3206b33 SHA-256: 82ed9dc795b8612bd039fdb7d366d9605256d65704b837fad17f9accf8ab72c6
184 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many of which point to disposable hosting and redirectors, indicating a link farm designed to distribute malicious content. The document body mentions 'how to hack asphalt 8 android lucky patcher', a lure to encourage clicks on these links. The ML classifier strongly flagged this PDF as malicious, and the presence of redirector links confirms a malicious intent to lead users to harmful sites.

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.
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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.link/pify?keyword=how+to+hack+asphalt+8+android+lucky+patcher In PDF document text
    • http://files.keebskorner.com/uploads/1/3/1/4/131437018/gunovilivax_zukuzaguteveto_kefususopubom_wifibokedoteje.pdfIn PDF document text
    • http://files.foreststreetps.com/uploads/1/3/1/3/131379692/divoputujuzilinalax.pdfIn PDF document text
    • http://mamevaj.hangupscompany.com/uploads/1/3/2/6/132682006/f37073886e.pdfIn PDF document text
    • http://files.oportunityisknocking.com/uploads/1/3/2/7/132740204/mokogagewutizir_japupitimolugob_jazepedumefuta_mulesagubelek.pdfIn PDF document text
    • https://site-1040876.mozfiles.com/files/1040876/watedebof.pdfIn PDF document text
    • https://site-1036680.mozfiles.com/files/1036680/migadanojiji.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/1/0485/0185/0273/files/gillette_fusion_manual_blades_-_8_cartridges.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4cf79fa9-252b-46dc-8a04-8a604b04f97e/6199713452.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e668ce94-803c-4ea5-96fe-c35e8b4b4986/49732108597.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7bfd35d3-e1a1-44c6-b00f-3b99691ce0ae/93473700609.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_off0000621b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x621B 5576 bytes
SHA-256: e718845143a41301994bdea922b2ad65d84712232b0fc7df54e79cb3765c2fe0
font_01_sfnt_off0000751e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x751E 11244 bytes
SHA-256: e150095ee415b3f5d76c8f49f88fcc3d8472cb7704a0b3bd28b4ead9c19af7bc