Malicious PDF — malware analysis report

Static analysis result for SHA-256 070b3494a840f6d5…

MALICIOUS

PDF

40.1 KB Created: 2020-10-12 20:13:04 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: 9a6e446997b70730db7c7eacd6bfdabd SHA-1: 37dd39e22a7540347d862bdd9da14a612118fcd4 SHA-256: 070b3494a840f6d53116773b7485681bc2d0057ba68e756510ba311192d57e7a
132 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF contains embedded links that redirect to known malicious infrastructure, as indicated by the PDF_MALICIOUS_REDIRECTOR_LINK heuristic. The document body, though partially corrupted, contains text suggesting a lure for exam papers, and the presence of a download button further supports a phishing or redirection attempt. The ML classifier also strongly flagged this PDF as malicious.

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 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://ggtraff.ru/strik?keyword=ibps+clerk+pre+2020+question+paper+pdf In PDF document text
    • https://site-1036791.mozfiles.com/files/1036791/bizipasu.pdfIn PDF document text
    • https://site-1039446.mozfiles.com/files/1039446/fapakilelijuzulud.pdfIn PDF document text
    • https://site-1039991.mozfiles.com/files/1039991/41560488327.pdfIn PDF document text
    • https://site-1044515.mozfiles.com/files/1044515/46955632681.pdfIn PDF document text
    • https://site-1043445.mozfiles.com/files/1043445/zixogiwuxekamu.pdfIn PDF document text
    • http://files.myalmightyblog.com/uploads/1/3/0/7/130776486/489ddc0.pdfIn PDF document text
    • http://nemedivo.afrisekgroup.com/uploads/1/3/0/8/130814328/8f469.pdfIn PDF document text
    • http://wuzor.lilianholm.com/uploads/1/3/1/3/131381045/8421934.pdfIn PDF document text
    • http://sijem.lilcongames.com/uploads/1/3/1/0/131070786/pipenesiponuli.pdfIn PDF document text
    • http://wulajudis.lauralieben.com/uploads/1/3/0/7/130739964/rejimixoke.pdfIn PDF document text
    • http://files.richardsandersonphotography.co.uk/uploads/1/3/1/6/131637814/8184622.pdfIn PDF document text
    • http://files.lamarqueitaliangreyhounds.com/uploads/1/3/0/8/130873937/0d6050.pdfIn PDF document text
    • http://files.anjasinternationalworld.com/uploads/1/3/1/3/131379991/lotoxupe-zisej-wajulagovabaj-jerefutavob.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/879507d7-ef75-4ce9-b343-ffcf7dbcb916/63203523352.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1be841f7-4783-4f0b-86ff-d1b998d244a5/gizomotumefipojodizog.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/872d4b3d-f0b7-4d88-9cc6-9be8838bd016/35562126506.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 8

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_off00005e76.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5E76 5688 bytes
SHA-256: 34880a784ddd6c84d290d2edc449fed53432932444af7e504eb69c071469a20f
font_01_sfnt_off000071cb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x71CB 9932 bytes
SHA-256: 1a57b3df2f6041365bd81f618a712b50437cd204b9ecb6a4c22491d0749f50d8

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