Malicious PDF — malware analysis report

Static analysis result for SHA-256 335ed9cf2d766924…

MALICIOUS

PDF

39.6 KB Created: 2020-08-20 13:59:28 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 91266c398a813316d316e85cc3952bcf SHA-1: ffbb5c03cbb147aaf7d10f0cb048395507cf0d9e SHA-256: 335ed9cf2d766924d7d51f6eacc1f9d085f71e5fcee6c9d3112b454219549e86
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a mass external link farm, with one critical link pointing to known malicious redirector infrastructure. The document body, though heavily obfuscated, contains text referencing a 'Donnelly weather report' and includes the malicious URL. This suggests the document is a lure to redirect users to malicious content.

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.
  • 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://ttraff.cc/pify?keyword=donnelly+weather+report In PDF document text
    • http://lapigugep.gandecollective.com/uploads/1/3/2/6/132681333/nokexip.pdfIn PDF document text
    • http://paxaj.yannispizzeriadeerfield.com/uploads/1/3/1/6/131637814/bejawozule_tusuruwerikew.pdfIn PDF document text
    • http://files.makeupbysarahe.com/uploads/1/3/0/7/130739826/08f8b5b.pdfIn PDF document text
    • http://jigesit.eliterecuperativecare.com/uploads/1/3/0/9/130969723/1dc5a840.pdfIn PDF document text
    • http://zojanop.dedethford.com/uploads/1/3/1/4/131410399/444bc6cce2.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/1/0429/7703/4399/files/character_certificate_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7602/5510/files/abstract_wallpaper_4k_apk.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5962/5627/files/vokozakako.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7840/9622/files/31631717136.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3251/8554/files/bengal_tiger_songs_ravi_teja.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2729/1544/files/nozaduzokaj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/5772/3030/files/agile_web_development_with_rails_4_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7456/7843/files/horizontal_and_vertical_translations_of_functions_worksheet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3056/1436/files/jemasaka.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4557/6088/files/nirusud.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9474/6023/files/58445927536.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9308/2783/files/xabewunowajifuv.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_off00005825.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5825 4920 bytes
SHA-256: de85b31dc521816f10163d00421cf99f3f35171effb8228f40490c7a89af47a2
font_01_sfnt_off000068f5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x68F5 12832 bytes
SHA-256: 9f24d024be041133dc5e345f9c0764118d01d099bff659bdf344de0fd4f19b75