Malicious PDF — malware analysis report

Static analysis result for SHA-256 7f484304e7c44418…

MALICIOUS

PDF

63.5 KB Created: 2021-02-17 18:59:19 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: f2bddb675ac0e4f1550ccba54d0e9ad0 SHA-1: f00a2be076ec8da30cce23df55b28cd094fd1703 SHA-256: 7f484304e7c4441887d58acd586b0a3dee1a610df3ce64308cc6db43dd1c2e3b
196 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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.
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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://leonvi.ru/wix?keyword=total+drama+island+elimination+order+scratch PDF link annotation
    • https://gojulujowavid.weebly.com/uploads/1/3/4/8/134886085/fifumu.pdfIn PDF document text
    • http://artdebug.site/58730007043u0cca.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4468267/normal_5ffbe2957614a.pdfIn PDF document text
    • http://100naturals.fun/android_notification_channel_example_githubmlqqo.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4480187/normal_5ffb10d616287.pdfIn PDF document text
    • http://slmit.fun/chennai_express_movie_song_mingdux6z.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4448549/normal_60126a3296987.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4454277/normal_5ffb93e834e4f.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/xuvamuba/lutiputerevifekosufuf.pdfIn PDF document text
    • https://s3.amazonaws.com/tinezedu/tax_exempt_donation_letter_template.pdfIn PDF document text
    • https://s3.amazonaws.com/tamobalasu/avidemux_free_for_android.pdfIn PDF document text
    • https://s3.amazonaws.com/vibasujefir/automower_435x_awd_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/kovilowab/biblia_takatifu_free_app.pdfIn PDF document text
    • https://s3.amazonaws.com/lusegokaves/calligraphy_name_app.pdfIn PDF document text
    • https://s3.amazonaws.com/gatazeromij/siwag.pdfIn PDF document text
    • https://s3.amazonaws.com/pogolo/gulevijelido.pdfIn PDF document text
    • https://s3.amazonaws.com/jiguwuzobozobaz/18666304918.pdfIn PDF document text
    • https://s3.amazonaws.com/xidazeze/akashaganga_movie_song_free.pdfIn PDF document text
    • https://s3.amazonaws.com/lezopobigeza/97450508252.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_off0000bf29.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBF29 5128 bytes
SHA-256: 48f89fc3e75beba1dbb62c81e7a8f509c7ba657132075d9ba55a295d87bbfa21
font_01_sfnt_off0000d069.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD069 9348 bytes
SHA-256: 8be39100bd58cfefbd0c993e348ce8739628873a976f2a9a339bbac078c2c4f3