Malicious PDF — malware analysis report

Static analysis result for SHA-256 cb897ac542878d85…

MALICIOUS

PDF

294.4 KB Created: 2022-03-02 17:56:02 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-08
MD5: 82dacde48f7067d9cd8be5beca35c306 SHA-1: f05987f338564022e61755aaef7ea3d52a117134 SHA-256: cb897ac542878d850d8b19e8924ca2f3f3c38c5d212fbc381a5ab5b00e0818f8
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.7452

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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.
  • PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM
    PDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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://unityofmyanmar.org/images/files/57900484946.pdf In PDF document text
    • http://xn--80aafbladvtbfgupeaecrgg.xn--p1ai/pict/file/lidipatib.pdfIn PDF document text
    • http://www.icmtravel.net/assets/ckeditor/kcfinder/upload/files/jinalonoxupezubuzinogofe.pdfIn PDF document text
    • http://topopentertainment.com/wp-content/plugins/formcraft/file-upload/server/content/files/161ff66d191f4a---ludotolalowunijaxogaselo.pdfIn PDF document text
    • https://izyskately.ru/foto/ck/files/95610156117.pdfIn PDF document text
    • http://amirafouad.com/uploaded_files/file/63658794641.pdfIn PDF document text
    • http://www.naturapreserved.com/wp-content/plugins/formcraft/file-upload/server/content/files/16206f84955b8c---gofupigumesabebajipusiw.pdfIn PDF document text
    • http://k1a.ru/images/files/file/1281511132.pdfIn PDF document text
    • https://a2designbg.com/userfiles/file/93280329428.pdfIn PDF document text
    • http://ags-sib.ru/ckfinder/userfiles/files/51281247867.pdfIn PDF document text
    • http://qiuyutv.com/userfiles/files/20220228104518.pdfIn PDF document text
    • https://taiwancy.com/app/webroot/userfiles/files/moxewokunebafipejekabag.pdfIn PDF document text
    • http://www.findvoters.com/userfiles/file/tobasesatopawozi.pdfIn PDF document text
    • http://hydrem.ru/images/file/96615689520.pdfIn PDF document text
    • https://sipare.com.ar/wp-content/plugins/super-forms/uploads/php/files/luboha83i95inl218mn311qv6m/71086025549.pdfIn PDF document text
    • https://betoimobiliaria.com.br/admin/kcfinder/upload/files/zatapi.pdfIn PDF document text
    • https://hw-power.com/uploads/ckfiles/files/6213b5446057d.pdfIn PDF document text
    • http://nasfthr.com/userfiles/file/18253408907.pdfIn PDF document text
    • https://cfi-registration.org/buzzboxgift/img/userfiles/files/17589314291.pdfIn PDF document text
    • http://dieta-plus.pl/userfiles/file/dobutaripafaponenaj.pdfIn PDF document text
    • https://gionggiacam.gagiongvitgiong.com/ckfinder/userfiles/files/tisepulumilug.pdfIn PDF document text
    • https://casapenela.cgb.pt/admin/files/files/42135518653.pdfIn PDF document text
    • http://linklandhotels.com/upfile/editor/files/mizojebe.pdfIn PDF document text
    • https://loheb.co.za/XSRYdR1H?utm_term=lucie%27+s+list+baby+registry+cheat+sheetPDF link annotation
    • http://bdnchem.com/upload/files/litineparebadaza.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://dejavu.sourceforge.netIn extracted file (font_00_sfnt_off00042b92.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off00042b92.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00042b92.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x42B92 10628 bytes
SHA-256: 792281c87dddf862743facf4ee0077868b70889051565859797bbf52bbc65c22
font_01_sfnt_off00044426.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x44426 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_02_sfnt_off00045b41.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x45B41 18228 bytes
SHA-256: d2c5474289e8f7a42fba298200d83a2eea2c1f92cb2a7b6788ef6f30fe755b75