Malicious PDF — malware analysis report

Static analysis result for SHA-256 2b6118cdac8c4da9…

MALICIOUS

PDF

48.9 KB Created: 2020-11-03 17:23:56 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-17
MD5: 9dd236f9d9c3f8f41c89cbf628763092 SHA-1: af78f380752730986369a8d74692a05b2104257a SHA-256: 2b6118cdac8c4da9acb159c900dae5429faa515fbdb388065da32c8439adc913
202 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • 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://gettraff.ru/wb?keyword=paypal%20money%20adder%20download%20apk In PDF document text
    • https://derejesi.weebly.com/uploads/1/3/4/3/134388634/febasidiwaxokag.pdfIn PDF document text
    • https://wetuxabo.weebly.com/uploads/1/3/0/8/130873937/farepo.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/voxazedisula/ac3a7c3a3o_de_cobranc3a7a_de_titulo_extrajudicial.pdfIn PDF document text
    • https://s3.amazonaws.com/wizidimawag/calendar_2018_india_with_holidays_and_festivals_download.pdfIn PDF document text
    • https://s3.amazonaws.com/kibavutibeved/dajasuz.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2e1e6b4d-c622-4c14-958f-dfd2d2ae1d60/vivajufegudebom.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/05e64cc1-fb9a-47c6-a00c-ed5176c6e1be/21481393604.pdfIn PDF document text
    • https://s3.amazonaws.com/dapekufoxiraku/55666763297.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/93eaaa8f-ac03-44ef-9113-ecffb90ab4cf/incomplete_and_codominance_worksheet.pdfIn PDF document text
    • https://s3.amazonaws.com/sojaxub/foxatosi.pdfIn PDF document text
    • https://s3.amazonaws.com/wovitiku/how_to_print_speaker_notes_in_google_slides.pdfIn PDF document text
    • https://s3.amazonaws.com/tudawufed/brain_teasers_for_kids.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2cb41664-83a5-4c57-ac0f-694ffdb8a655/2958704745.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_off00007de1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7DE1 5184 bytes
SHA-256: 36b145cd2cc85f022ea1955c9fb43dc3c7f134f6dfec7119726b212b25fa1c6a
font_01_sfnt_off00008f84.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8F84 11476 bytes
SHA-256: 1be65e8c77abdd083f93ffe04198a57d5af6dc96e0edc24ca85b97b59eb1623b

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