Malicious PDF — malware analysis report

Static analysis result for SHA-256 c0c699efd9fb0f18…

MALICIOUS

PDF

71.2 KB Created: 2021-01-27 01:07:26 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-02
MD5: dbc02eb73e9f1819fe8b92128bf688cd SHA-1: 60394481fa644cb1a9950c63cd5458c97b70424f SHA-256: c0c699efd9fb0f18a261931dbe377e92212151ff97461afd964810493a90f732
262 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 7

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://traffmen.ru/wb?keyword=treasure%20slots%20free%20vegas%20slots%20casino%20games In PDF document text
    • https://s3.amazonaws.com/miledu/kalinuzonofebil.pdfIn PDF document text
    • https://s3.amazonaws.com/vexeliku/bomag_bw120ad-_5_parts_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/zeworibuzoza/44320946620.pdfIn PDF document text
    • http://slmit.fun/national_teacher_appreciation_day_2021kn0yk.pdfIn PDF document text
    • https://s3.amazonaws.com/sasufufa/80578294504.pdfIn PDF document text
    • https://dogodomob.weebly.com/uploads/1/3/4/0/134017369/dutamibigigar-rilufirojodokik-nikilub-mopunuzufip.pdfIn PDF document text
    • http://spencermcman.us/watch_the_rundown_online_freee52ms.pdfIn PDF document text
    • http://helpcopyright-service.com/62524597691ddctf.pdfIn PDF document text
    • https://cdn.sqhk.co/pixafosabow/itid7hd/starfish_movie_2020.pdfIn PDF document text
    • http://kebotup.66ghz.com/android_app_store_developer_cost.pdfIn PDF document text
    • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off0000ca0f.bin)
    • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off0000ca0f.bin)
    • http://www.daltonmaag.com/In extracted file (font_02_sfnt_off0000ffd8.bin)
    • http://lofomaseforuz.rf.gd/rune_factory_4_monster_gift_guide.pdfIn PDF document text
    • http://lowazuxakosilal.epizy.com/sengoku_basara_4_pc_game.pdfIn PDF document text
    • http://kavaxix.rf.gd/40661784778.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_off0000ca0f.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ca0f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCA0F 5092 bytes
SHA-256: 8a05c1dd14212fed2840c2df5d9f48eadf525bf97d1f1822bc3728bb7a05ccbd
font_01_sfnt_off0000db55.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDB55 10712 bytes
SHA-256: 211c869fbdc1dcee16b1ee951fe0716de391e70a2ce70e7156e3c87edeec61fa
font_02_sfnt_off0000ffd8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFFD8 4324 bytes
SHA-256: ad623bc7c681097dfa1224999cf6cc6072d3ca9a137655dc1129b0261f0b357c