Malicious PDF — malware analysis report

Static analysis result for SHA-256 3e3e06ebc33d69ab…

MALICIOUS

PDF

65.8 KB Created: 2021-02-12 08:14:33 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 59e505db2b95148b1c2b7343e21b9de6 SHA-1: e5e1923ab002f46fec4bc457e7155074e8887159 SHA-256: 3e3e06ebc33d69ab3960604c1c56f7188721fad2a95ebea40b5d6e57c92d52be
194 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • 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.
  • 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://yafferge.ru/wix?keyword=fromm+heartland+gold+puppy+feeding+guide In PDF document text
    • https://cdn.sqhk.co/jotoselu/cYH1Rig/hd_wallpaper_for_pc_1920x1080_gaming.pdfIn PDF document text
    • https://cdn.sqhk.co/visukodo/iegiCic/flaming_skull_wallpapers_for_phone.pdfIn PDF document text
    • https://cdn.sqhk.co/luxixumogez/Ghaghwm/zombie_age_mod_apk_3.pdfIn PDF document text
    • https://cdn.sqhk.co/pirasemofoge/gwAfjbh/borewibikejedibusoxofaja.pdfIn PDF document text
    • https://cdn.sqhk.co/dizoketa/JghAjj1/wotemavasubofemubidare.pdfIn PDF document text
    • https://cdn.sqhk.co/pukikojat/gefFkop/come_say_hi_in_spanish.pdfIn PDF document text
    • https://cdn.sqhk.co/wefenilu/a3YOGIf/donexalojed.pdfIn PDF document text
    • https://cdn.sqhk.co/fidumugovoz/jiiimha/54879990273.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4502464/normal_5fe50b3d8dd37.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4454821/normal_601e7bbe48b73.pdfIn PDF document text
    • https://cdn.sqhk.co/fekigimuzib/25PMhjj/beholder_5e_challenge_rating.pdfIn PDF document text
    • https://cdn.sqhk.co/nupegefozub/iif0igo/memakovo.pdfIn PDF document text
    • https://cdn.sqhk.co/tinulafi/doOtxTQ/79736050553.pdfIn PDF document text
    • https://cdn.sqhk.co/dizoketa/gRhqiaE/proximo_pase_elite_de_noviembre_2020.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4417030/normal_5fd15be09f98e.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4379222/normal_5fe5558c210ee.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn 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_off0000c76d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC76D 5336 bytes
SHA-256: 78677e7149ebb7a7066de856b15f6e0173898f9ad63d6febd22ea766054c0ad4
font_01_sfnt_off0000d976.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD976 9588 bytes
SHA-256: e0334d2a48265cf3054c4ce54b96f369b82521d4626d3bcd8fef2deaba45ce8a