Malicious PDF — malware analysis report

Static analysis result for SHA-256 7b0570eb894a6606…

MALICIOUS

PDF

64.9 KB Created: 2021-02-12 23:39:25 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 3fe03a0236f8747acb3b778395528049 SHA-1: e52aacedb24d655597d047a515357af4f04d0f42 SHA-256: 7b0570eb894a66061d7ef465bfa4e440279f8a8f76432eac8c42307c75da3332
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=tenmarks+games+banana+jungle PDF link annotation
    • https://jimedugevebuz.weebly.com/uploads/1/3/4/4/134437071/371401.pdfIn PDF document text
    • https://cdn.sqhk.co/xotolodi/ifW5jhb/unesco_sustainable_development_goals_health.pdfIn PDF document text
    • https://cdn.sqhk.co/lelabepena/b5ERjeP/wimebukumiwugipenux.pdfIn PDF document text
    • https://cdn.sqhk.co/mofijovelu/Y5icJ0d/ikea_dresser_drawers.pdfIn PDF document text
    • https://cdn.sqhk.co/dolitife/djhjhgd/malezevomalonokab.pdfIn PDF document text
    • https://cdn.sqhk.co/reteduze/jjohfjb/temezepibamipojekexese.pdfIn PDF document text
    • https://cdn.sqhk.co/zokelotosa/aUjaji8/wiwilewurosip.pdfIn PDF document text
    • https://cdn.sqhk.co/zojoguxuban/diiAyii/game_of_thrones_lannister_family_members.pdfIn PDF document text
    • https://cdn.sqhk.co/defisepeniba/bOifVGF/vatuzaxutovororaxun.pdfIn PDF document text
    • https://cdn.sqhk.co/xonepogafix/aRhfFgh/pumpkin_carving_kit_walmart_canada.pdfIn PDF document text
    • http://wiruxenolap.22web.org/64966046913.pdfIn PDF document text
    • http://vomuniwawan.iblogger.org/moviguzuluj.pdfIn PDF document text
    • https://sufojise.weebly.com/uploads/1/3/0/7/130739234/vujalupopixoter.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/mudurixo/kinofofaxojir.pdfIn PDF document text
    • https://s3.amazonaws.com/jafujasiwetid/widanemakipidofilulabuva.pdfIn PDF document text
    • http://kunonepu.rf.gd/77994998657.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_off0000c207.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC207 5232 bytes
SHA-256: 047dcb03c88222ea1bd575c90c0cd57e67dbc40f8a336dec1aaf06f42fe602f2
font_01_sfnt_off0000d3c3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD3C3 10196 bytes
SHA-256: 56171829042bce6bea2a821ac907bc49e0d0d5f0541a143ae0ea0d9a0573bc08