Malicious PDF — malware analysis report

Static analysis result for SHA-256 8f60876d8c46e3dc…

MALICIOUS

PDF

49.7 KB Created: 2020-10-04 22:47:54 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-04-30
MD5: 9b4c6325d06445df6e6c7fab13f299d7 SHA-1: 0bbd03eed7055f3bc4b1bbc24c74b600f5c07cc0 SHA-256: 8f60876d8c46e3dc008712a3a2a774aea31adc065a509caecd7aa2c33108e055
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.
  • Travel-support phone-number stuffing scam critical SE_TRAVEL_SUPPORT_PHONE_SCAM
    Document repeats phone numbers in airline/travel/refund/support language, often across multiple regional phrasings. This matches SEO/support-scam PDFs that impersonate airlines or travel brands and route users to attacker-controlled call centers rather than a normal travel document.
  • 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/strik?keyword=lista+phrasal+verbs+b1+pdf In PDF document text
    • https://site-1036628.mozfiles.com/files/1036628/56775669944.pdfIn PDF document text
    • https://site-1036689.mozfiles.com/files/1036689/54278441450.pdfIn PDF document text
    • https://site-1039378.mozfiles.com/files/1039378/4195425407.pdfIn PDF document text
    • https://site-1043651.mozfiles.com/files/1043651/53170813285.pdfIn PDF document text
    • https://site-1040896.mozfiles.com/files/1040896/rebagizemuxubedavovi.pdfIn PDF document text
    • https://site-1039740.mozfiles.com/files/1039740/tuvapapodulu.pdfIn PDF document text
    • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off000078d1.bin)
    • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off000078d1.bin)
    • https://uploads.strikinglycdn.com/files/2adb0d3f-2b32-4d7e-911a-d04137eb35df/17229207238.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/baac8965-65c5-4899-aa45-6d5108081ae5/fenufasik.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/40f5032b-932a-4514-96af-24a40e2db229/wodefumugebakigi.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/558c3c89-3ba5-4683-a82d-a262c07c1b90/33706157689.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b905a2b8-4172-4fa5-8956-9d90f1cd889c/1222719454.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c6b2835a-49c8-4a39-bc4a-c105e738cd63/45292159026.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b9269cd7-5b9e-4766-a53f-46da59c867a9/11446112365.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/50330022-a857-4372-8940-cf273d0ad9aa/82417523581.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 extracted file (font_00_sfnt_off000078d1.bin)

Related samples 6

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_off000078d1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x78D1 5320 bytes
SHA-256: 6c1b780a60f0ecba1e9c226aa18ef1336b44a295c80e9c340476eee7c610c93a
font_01_sfnt_off00008aef.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8AEF 14288 bytes
SHA-256: 39886cbbbd2b7f22d0ea88f9010400814db29de9bacf5a28c5f5a0140520322b

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