Malicious PDF — malware analysis report

Static analysis result for SHA-256 a4fa0a07065bdd8c…

MALICIOUS

PDF

290.6 KB Created: 2022-02-10 18:06:23 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-07-01
MD5: b37d34ef0257cf01feb3bc52e8c6dd2b SHA-1: 3e972e00a825c487cb307cc78105545f9af747d1 SHA-256: a4fa0a07065bdd8c5db0db02b91689845c1bf4771b1a82a06de39c97ed9bb9c3
182 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.5647

Heuristics 8

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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.
  • Fake invoice / payment lure low SE_INVOICE_LURE
    Document contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://podar.co.za/XSRYdR1H?utm_term=household+accounts+excel+template PDF link annotation
    • https://castrolraceway.global-powersystems.com/~globa859/castrolraceway/userfiles/file/sexokipurufoleka.pdfIn PDF document text
    • http://ricettebiagi.it/uploads/assets/file/xupuxidezamesobodegoni.pdfIn PDF document text
    • http://dabaizhongxue.com/upload_fck/file/2021-8-24/20210824003119566742.pdfIn PDF document text
    • http://m-camper.ru/ckfinder/userfiles/files/tajok.pdfIn PDF document text
    • https://knurussian.kr/DATA/upload/files/202107271124442864.pdfIn PDF document text
    • http://maksimetall.ru/files/53277116980.pdfIn PDF document text
    • https://conexusinternational.com/ckfinder/userfiles/file/tusotapekegejuberivip.pdfIn PDF document text
    • http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613f1739c824d---76107462643.pdfIn PDF document text
    • https://www.huaikrachaohospital.go.th/assets/global/lib/ckfinder/userfiles/files/38751230554.pdfIn PDF document text
    • http://chiaranannini.com/userfiles/files/nefivogigise.pdfIn PDF document text
    • http://daiichihr.com/uploads/news_file/92301291740.pdfIn PDF document text
    • https://tallerescarrion.com/uploads/file/zipilavetepejud.pdfIn PDF document text
    • http://www.miyadenthai.com/image/upload/File/jirukerasupal.pdfIn PDF document text
    • http://88cpap.com/userfiles/files/38713100566.pdfIn PDF document text
    • https://olivier-daulte.com/ckfinder/userfiles/files/nesupomezinorifidudefelat.pdfIn PDF document text
    • http://spad.kr/userData/ebizro_board/file/23042061727.pdfIn PDF document text
    • http://www.hkwebdesign.com.hk/wp-content/plugins/formcraft/file-upload/server/content/files/1616d2b4375941---xowiroretu.pdfIn PDF document text
    • http://elsped.hu/files/file/70252976941.pdfIn PDF document text
    • https://kudamatsu.org/userfiles/file/14335223221.pdfIn PDF document text
    • http://konstruktor33.ru/app/webroot/files/files/37719131675.pdfIn PDF document text
    • https://sunriseinnjasper.com/nbloom/fckuploads/file/30727778084.pdfIn PDF document text
    • https://motty-etai-sharon.com/files/files/tanerifamebevofebosa.pdfIn PDF document text
    • https://senfina.top/uploads/files/tadefovapajiparagadafe.pdfIn PDF document text
    • http://chanakol.com/ckfinder/userfiles/files/jofikofukoduxo.pdfIn PDF document text
    • https://starbox.fr/img/files/59868971283.pdfIn PDF document text
    • https://sy-chemical.com/UserFiles/file/sinirudujeme.pdfIn PDF document text
    • http://vencedor.coop/images/admin/file/79067723923.pdfIn PDF document text
    • https://parlagame.com/calisma2/files/uploads/xupiwem.pdfIn PDF document text
    • https://zegaoyun.com/calisma2/files/uploads/26930731249.pdfIn PDF document text
    • http://english-island.pl/wp-content/plugins/super-forms/uploads/php/files/0slcoar1dj75b8407us9lr0af4/wenaxebikav.pdfIn PDF document text
    • https://dolphinsolutions.net/ckfinder/userfiles/files/fupuxegazoxeli.pdfIn PDF document text
    • http://visualpaint.com/wp-content/plugins/formcraft/file-upload/server/content/files/161de05af4b150---42043311096.pdfIn PDF document text
    • https://chocoinmobiliario.com/wp-content/plugins/super-forms/uploads/php/files/766adb34015144dd0efa0c0ed3b64373/22489174092.pdfIn PDF document text
    • http://rsentco.com/upload/file/fizobaxuvixan.pdfIn PDF document text
    • https://krassimirtaskov.com/userfiles/files/genekel.pdfIn PDF document text
    • http://industrialdevices.in/uploads/22800018494.pdfIn PDF document text
    • http://adance0112.com/upfile/editor/file/36504819908.pdfIn PDF document text
    • http://www.kindytennis.com/wp-content/plugins/formcraft/file-upload/server/content/files/161b4bb0717a67---55917868415.pdfIn PDF document text
    • http://www.studiolegalefusimorelli.com/wp-content/plugins/formcraft/file-upload/server/content/files/161b9f9830b92d---52641974564.pdfIn PDF document text
    • http://ateliergermain.net/sites/default/files/file/72088042918.pdfIn PDF document text
    • https://penzehir.com/dorceiys/ckfinder/userfiles/files/lazen.pdfIn PDF document text
    • http://janjoling.com/public/ckfinder/userfiles/files/28469827182.pdfIn PDF document text
    • https://aldea.work/wp-content/plugins/super-forms/uploads/php/files/a5301ce82b59527f089d446ff99faec2/2808022531.pdfIn PDF document text
    • http://ngocphuocjsc.com/public/default/ckeditor/files/wukupawibasalusazejaji.pdfIn PDF document text
    • http://bwa.olsztyn.pl/bwa3/admin/kcfinder/upload/files/gesisixevem.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
    +4 more URL(s)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000419bf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x419BF 18408 bytes
SHA-256: 4d4a242cf3d6c5f926609e485609fa9445e33a6df8495a3a59a31607dac2c1f4
font_01_sfnt_off00044a17.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x44A17 10780 bytes
SHA-256: c7d9131610d041bb496e03291942a732fecc4a7a44f9768426adffc96173861e
font_02_sfnt_off000462c4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x462C4 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9