Malicious PDF — malware analysis report

Static analysis result for SHA-256 01aa8f319867378e…

MALICIOUS

PDF

299.5 KB Created: 2021-12-22 20:14:55 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-01
MD5: 7fcbcf8bc35e492064e63be92cced62f SHA-1: ddc503ce294d71d30bc501254c7fa76875adcd9e SHA-256: 01aa8f319867378e26dc6008f95b5fbf707b3a3908447e91eee9f3cd10d24085
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.7334

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
  • 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 http://a-range.ru/wp-content/plugins/formcraft/file-upload/server/content/files/161951ae9da6bd---34725665833.pdf In PDF document text
    • http://kimbuunguyen.com/uploads/userfiles/file/residagasukegolobute.pdfIn PDF document text
    • http://xn--9i1b14l32gg2dsybq3b.com/upload/fckeditor/file/68559386020.pdfIn PDF document text
    • http://www.theflightfest.com/wp-content/plugins/formcraft/file-upload/server/content/files/16180c2fc91bee---10321950731.pdfIn PDF document text
    • http://ed-web.cz/userfilesfile/14837894847.pdfIn PDF document text
    • https://seeyounow.net/userfiles/file/pufoxejurixol.pdfIn PDF document text
    • https://matkinhantai.com/luutru/files/posotinij.pdfIn PDF document text
    • http://ttccid.com/userfiles/file/41926745354.pdfIn PDF document text
    • https://inprovitcolombia.com/ckfinder/userfiles/files/buwidunirurigiri.pdfIn PDF document text
    • https://szallas-karpatalja.hu/upload/zivitebabele.pdfIn PDF document text
    • http://vakaruinzinerija.lt/userfiles/file/64238882132.pdfIn PDF document text
    • http://energo-winstal.pl/userfiles/file/maxawomumezesavanix.pdfIn PDF document text
    • http://kubablimel.pl/Image/files/giletegujexekabil.pdfIn PDF document text
    • https://groupunsur3.com/contents/files/navokajoxawuvubarelupi.pdfIn PDF document text
    • http://garantc.ru/userfiles/file/wunisedukuzaru.pdfIn PDF document text
    • http://the100voicesofgospel.de/fichiers/newsletter/file/jegezalowuzufajogovo.pdfIn PDF document text
    • https://costarica4d.com/contents/files/97743211307.pdfIn PDF document text
    • https://sipsib.ru/wp-content/plugins/super-forms/uploads/php/files/3e5b0c46e235a4892418dea016dc4401/39454288396.pdfIn PDF document text
    • http://www.verneteco.com/ckfinder/userfiles/files/24735211674.pdfIn PDF document text
    • https://lesartsdansmonjardin.com/userfiles/file/20210914033239.pdfIn PDF document text
    • http://funagamex.vn/PhuongNamGroup/userfiles/files/57474548866.pdfIn PDF document text
    • http://www.hj-bouwt.be/wp-content/plugins/formcraft/file-upload/server/content/files/1619d3c01c614a---juwisas.pdfIn PDF document text
    • http://www.alborada.es/ckfinder/userfiles/files/19321253452.pdfIn PDF document text
    • https://ap-qatar.com/userfiles/files/poxonipomewiw.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Gsjc/~3/u-9XGpgKpwY/uplcv?utm_term=arithmetic+sequence+worksheet+answers+pdfPDF 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 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_off00043bb8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x43BB8 16416 bytes
SHA-256: cfa2c3fbce80cc5607e01af033b793d17c57c214fb1d96e845eedea48cccd336
font_01_sfnt_off0004525c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4525C 11244 bytes
SHA-256: 5014e5f43a2aa8807535fc7d73fecf5cc22df6810baf2db2936f38237f7edea6
font_02_sfnt_off00046c6f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x46C6F 18876 bytes
SHA-256: 46ea212294108426ab2c66fdcec057061f13754079a5b176a39a7327666086de