Malicious PDF — malware analysis report

Static analysis result for SHA-256 aa8757fac8710ae0…

MALICIOUS

PDF

40.7 KB Created: 2020-09-30 18:18:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-06
MD5: e82621625f6fa57da57c473a225f4551 SHA-1: c54e373ad17df8eb07479c2208590fa764eeaaff SHA-256: aa8757fac8710ae07a0e74128267f13df005df6079d86ad5d8636f3a1d177c09
134 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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.
  • 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://gettraff.ru/strik?keyword=carrier+ethernet+2.+0+pdf In PDF document text
    • https://site-1037196.mozfiles.com/files/1037196/46798987673.pdfIn PDF document text
    • https://site-1037122.mozfiles.com/files/1037122/xirewisajemesutugalo.pdfIn PDF document text
    • https://site-1037869.mozfiles.com/files/1037869/77187448322.pdfIn PDF document text
    • https://site-1037022.mozfiles.com/files/1037022/55672944466.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/04030f3e-0a91-4ace-b6b8-430af9225729/63392319838.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/46a92f5c-b088-4c05-968f-b0393238e088/99462568598.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/bc0c5a1a-d5bb-487f-a452-1a36564cea51/finipev.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c7459e06-19d8-4277-af68-79c4f3f220b0/fozagisubi.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/843f3139-fdc5-48e3-8243-5f0715f79ff9/buxupotavulawovis.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/11cf12d8-faca-40e3-9b9c-455669d90c43/94439960404.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6d526773-38b1-460b-81c4-643bf23722b1/60709042568.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4faef74c-5d26-42ac-9a38-6cbd999f010e/67460517195.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/48938ae8-3e2a-433c-914f-3c862055baa9/gilakolomikomigafe.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/df1390ab-8255-4069-994a-7480ebbdaf21/64367060907.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/45c7f324-427f-4dfe-a03a-8b4b42b45600/davumufavisolese.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/dd89269a-0e9d-4c5b-9320-7e792db557e0/65078671274.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7a2e92b6-2239-4afc-b983-a757fc9fce8f/14861377931.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_off000061c2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x61C2 5132 bytes
SHA-256: 4d98a6c1f01e7c50969e477674c79f57161e3de6cec791645d57cdc624796d7b
font_01_sfnt_off00007337.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7337 10220 bytes
SHA-256: c081462b43a98f685792f7703be8d047201d9c8f13018abf5849c40962cee041