Malicious PDF — malware analysis report

Static analysis result for SHA-256 445dfb9f5211a398…

MALICIOUS

PDF

220.3 KB Created: 2022-04-06 01:53:16 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-12
MD5: 5ebc7b5f549402fce7850758e2bd1707 SHA-1: dfb52d2546ed2dbaa9b9617a116457f0cc8d6077 SHA-256: 445dfb9f5211a398993ec44658595f79b1c7fb9f962751b3ef6f278c140731a4
174 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains embedded JavaScript and multiple external URIs, including one identified as an SEO redirector for phishing. The ML classifier and ClamAV detection strongly indicate malicious intent. The embedded JavaScript likely facilitates the redirection or payload delivery, contributing to the phishing attack pattern.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8135

Heuristics 7

  • 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.
  • Embedded JS stream low PDF_JS
    PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
  • 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://sunuf.co.za/XSRYdR1H?utm_term=army+2.+5+mile+walk PDF link annotation
    • https://jekudadej.weebly.com/uploads/1/3/5/3/135301654/piruvuwemofirosisef.pdfIn PDF document text
    • https://keberalu.weebly.com/uploads/1/3/4/7/134725283/90ac7.pdfIn PDF document text
    • https://vedatirujoxe.weebly.com/uploads/1/3/1/6/131606280/4650174.pdfIn PDF document text
    • https://kasitawudak.weebly.com/uploads/1/3/1/3/131380619/3750730.pdfIn PDF document text
    • http://ekoturizm.mekan360.com/UserFiles/file/nabavatuseme.pdfIn PDF document text
    • https://sasifebuwanozag.weebly.com/uploads/1/3/4/2/134234849/garaxifif.pdfIn PDF document text
    • https://zanelonovubut.weebly.com/uploads/1/3/4/3/134315015/ca8ec46c.pdfIn PDF document text
    • http://usmp.pnl.ac.id/asset/kcfinder/upload/files/35292074168.pdfIn PDF document text
    • https://ddc-touggourt.dz/ar/files/89700938116.pdfIn PDF document text
    • http://www.creativitaecomunicazione.it/js/lib/ckfinder/userfiles/files/tabazivazejipoxolixilik.pdfIn PDF document text
    • https://zigudawaza.weebly.com/uploads/1/3/6/0/136035030/duziwusebefe-sonurox.pdfIn PDF document text
    • https://degardo.hollandpazsit.hu/ckfinder/userfiles/files/bikudozesupumovazok.pdfIn PDF document text
    • http://dfwsedan.com/nbloom/fckuploads/file/janileguvanemobogi.pdfIn PDF document text
    • https://kingwaterpure.com/ckfinder/userfiles/files/sesodavimekibobizetaxovez.pdfIn PDF document text
    • https://lepudumewo.weebly.com/uploads/1/3/5/9/135962044/72c6642bd464bf6.pdfIn PDF document text
    • https://wisakonison.weebly.com/uploads/1/3/4/7/134766038/rexoseledelefi_tasero_lixufaded_zixigonowizipis.pdfIn PDF document text
    • http://oldadmin.k12cart.com/media/files/53067438168.pdfIn PDF document text
    • http://www.iycadana.org/wp-content/plugins/super-forms/uploads/php/files/4lp7qhk6pnhcjnrbh84vtlro91/53901399373.pdfIn PDF document text
    • https://xaxusadusu.weebly.com/uploads/1/3/4/4/134497069/3686583.pdfIn PDF document text
    • https://ridejotewofo.weebly.com/uploads/1/3/5/3/135314456/9098512.pdfIn PDF document text
    • https://www.grecosalesinternational.com/wp-content/plugins/formcraft/file-upload/server/content/files/1620b76a6a952b---12309180255.pdfIn PDF document text
    • http://legrand-etika.su/kcfinder/upload/files/lorujotemizufirebavoxota.pdfIn PDF document text
    • http://beijinghuojia.cn/userfiles/file/rutonizi.pdfIn PDF document text
    • http://ashop.26srv.de/entwicklungsumgebung/ashop/user_ashop/cms_images/files/80422937519.pdfIn PDF document text
    • https://springfordfarm.com/sites/default/files/uploads/file/92174995742.pdfIn PDF document text
    • https://tresonance.org/uploadfiles/65744125428.pdfIn PDF document text
    • http://www.jimenez-casquet.com/wp-content/plugins/formcraft/file-upload/server/content/files/16240e17f51e70---zududesadimigibuna.pdfIn PDF document text
    • https://wubenigulusetib.weebly.com/uploads/1/3/4/7/134712949/4504259.pdfIn PDF document text
    • http://jplus-ag.com/upload/files/BodyFile__622D40CB0BE00.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 PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00030030.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x30030 19332 bytes
SHA-256: d607efea04361b6ec5728dc5cf29aca948d487d4ecb0c571bdb7f3bf6c5f3073
font_01_sfnt_off000332a1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x332A1 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off00034ab8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x34AB8 10372 bytes
SHA-256: b4ffb3a24fca04bd4618bb9c0ac91e302ff093dd59512a0b83394c5b63ae2d3a