Malicious PDF / .VIR — malware analysis report

Static analysis result for SHA-256 3f8b5dfb93740596…

MALICIOUS

PDF / .VIR

396.1 KB Created: 2022-11-19 10:30:47 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2024-07-13
MD5: e6ab5efc4a97a2ff2417ac0b2e267e62 SHA-1: 09317a2926bf8b525c77e5dcecbc52f3031d43ee SHA-256: 3f8b5dfb93740596f7a137b858faef7e975cb461248135c45ca1b5d9e54f2f8b
76 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.6800

Heuristics 4

  • 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://rinavupitaf.weebly.com/uploads/1/3/1/1/131164375/3870760.pdf In PDF document text
    • https://jegeromimafos.weebly.com/uploads/1/4/2/5/142541652/87934.pdfIn PDF document text
    • http://nesekonker.com/panel/kcfinder/upload/files/82077288185.pdfIn PDF document text
    • http://ekkerszerviz.hu/userfiles/file/jazokuxopedusosiwi.pdfIn PDF document text
    • http://polishedskincare.com/minaret/uploads/file/gifenevezeguneneduleleli.pdfIn PDF document text
    • https://gukenesiwedik.weebly.com/uploads/1/3/4/7/134735424/2610147.pdfIn PDF document text
    • https://forssah.co/userfiles/file/mogoka.pdfIn PDF document text
    • https://cmsmda.dyned.com/uploads/all/97364679509.pdfIn PDF document text
    • https://semitedajun.weebly.com/uploads/1/3/1/6/131636975/wiwosisak_loreb.pdfIn PDF document text
    • https://jevitasa.weebly.com/uploads/1/4/1/8/141886861/f85679e754662bd.pdfIn PDF document text
    • https://zazokovorif.weebly.com/uploads/1/3/4/3/134321981/5d59a3c70a29b7b.pdfIn PDF document text
    • https://sixumegeb.weebly.com/uploads/1/3/4/4/134476160/gekeritu_dazuwunax.pdfIn PDF document text
    • https://rizilujupesun.weebly.com/uploads/1/4/1/4/141489997/jisazesajok-keperifu-zalidobegogesim.pdfIn PDF document text
    • https://sufunisukexe.weebly.com/uploads/1/3/1/3/131381546/2642364.pdfIn PDF document text
    • https://xogefuvoza.weebly.com/uploads/1/3/2/3/132303221/3764287.pdfIn PDF document text
    • https://kukuwifusebuve.weebly.com/uploads/1/3/1/4/131438412/7541922.pdfIn PDF document text
    • https://bigimegena.weebly.com/uploads/1/3/1/4/131438437/1809837.pdfIn PDF document text
    • https://dojasifolepitop.weebly.com/uploads/1/4/2/0/142067715/535415.pdfIn PDF document text
    • https://alcc.c-zentrix.com/ALCC/mail_attachments/multitenant-ws-01/1/1650851452.pdfIn PDF document text
    • https://pujakopevu.weebly.com/uploads/1/3/2/6/132682627/bogekenonubow-dogisinarol-lemoji.pdfIn PDF document text
    • http://www.sindafaz.com.br/admin/editor/ckfinder/userfiles/files/fivofibabagevet.pdfIn PDF document text
    • https://subafoxa.weebly.com/uploads/1/3/1/3/131379179/mozebe.pdfIn PDF document text
    • https://fukuperuka.weebly.com/uploads/1/3/4/8/134883813/284d475bd881e1d.pdfIn PDF document text
    • http://jerry-cheese.com/kcfinder/upload/files/45446913338.pdfIn PDF document text
    • https://tewoxewofazavi.weebly.com/uploads/1/3/4/6/134625179/251128.pdfIn PDF document text
    • http://slkuang.com/v15/Upload/file/20221115437243990.pdfIn PDF document text
    • https://vienhung.com/webroot/img/files/17715538590.pdfIn PDF document text
    • https://cicadit.ro/UserFiles/file/saxejigamumovijemave.pdfIn PDF document text
    • https://mogebexub.weebly.com/uploads/1/4/1/5/141504593/terati.pdfIn PDF document text
    • http://gidromall.ru/img/uploads/file/xapupox.pdfIn PDF document text
    • https://raparugatefovax.weebly.com/uploads/1/3/4/3/134361383/740c4d53d758.pdfIn PDF document text
    • https://winateminapalem.weebly.com/uploads/1/3/4/0/134041456/tasuxa-gukabone.pdfIn PDF document text
    • http://oapsirs.com/c3?utm_term=jogo+midnight+club+3+para+celular+androidPDF link annotation
    • 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://dejavu.sourceforge.netIn extracted file (font_00_sfnt_off0005d287.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0005d287.bin)

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0005d287.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5D287 11196 bytes
SHA-256: 2feac9179deceea8e59da226a36c93365f2d1f8829d973e4bbbe981ab3f7aea4
font_01_sfnt_off0005ec1d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5EC1D 20296 bytes
SHA-256: f2a738ae19aab1e3e559d6f7c30f550544e665bc3e529b811269487f7d25d1fa