Malicious PDF — malware analysis report

Static analysis result for SHA-256 f2fe6454d710cf5c…

MALICIOUS

PDF

83.5 KB Created: 2021-10-07 15:33:46 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-13
MD5: 8afdef5e141bce1a4738e98a7f40acf4 SHA-1: 3220c15f892bc2b61a6b93540ff9aaf83c2f445e SHA-256: f2fe6454d710cf5c51b08447d969ea9cbb3b878bd64271fd7362b8ae04b20b58
164 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains embedded JavaScript and numerous external URIs, many of which point to compromised CMS upload storage or disposable hosting, indicating a link farm designed to redirect users. The ML classifier and ClamAV detection strongly suggest malicious intent, likely for phishing or malware delivery via these links.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9956

Heuristics 7

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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.
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. 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://infrive.ru/uplcv?utm_term=300+gr+to+ml PDF link annotation
    • https://beaufortbond.com/wp-content/plugins/super-forms/uploads/php/files/834f87da6a0b6e4d5981befab26b64ca/madiralilelidazizelagez.pdfIn PDF document text
    • https://12tiga.com/contents/files/98368259096.pdfIn PDF document text
    • http://gat-asset.com/CKEdit/upload/files/43189753978.pdfIn PDF document text
    • http://gsoam.ge/wp-content/plugins/formcraft/file-upload/server/content/files/16130ecfd04bef---41156706086.pdfIn PDF document text
    • http://yesilderecine.com/admin/editor_resim/file/jilixadonedexax.pdfIn PDF document text
    • http://kozszemle.hu/uploads/files/wojazekelusego.pdfIn PDF document text
    • http://euhoca.com/js/ckfinder/userfiles/files/voreralatumer.pdfIn PDF document text
    • http://retailcop.ca/files/7167615456.pdfIn PDF document text
    • https://afraitn.com/basefile/afra/files/37450078980.pdfIn PDF document text
    • http://sl-light.ru/design/img/upload/file/mumefiwetameli.pdfIn PDF document text
    • http://wrtour.com/FileData/ckfinder/files/20211006_F28DA71B4F603C3B.pdfIn PDF document text
    • http://k12kos.com/ckfinder/userfiles/files/tovamobux.pdfIn PDF document text
    • http://freeorden.com/media/file/83973080169.pdfIn PDF document text
    • http://venusland.vn/app/webroot/img/files/67769675957.pdfIn PDF document text
    • http://gingerwooddesign.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613c23a441818---81810798130.pdfIn PDF document text
    • https://yp05.com/_UploadFile/Images/file/bozabamusi.pdfIn PDF document text
    • https://armature.ir/cache/fck_files/file/21025840040.pdfIn PDF document text
    • http://vom-ragnaroek.de/uploads/file/8199348530.pdfIn PDF document text
    • http://inspirationallabels.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/16149ae1d23557---97488930099.pdfIn PDF document text
    • http://bjsddesign.com/filespath/files/20210905133303.pdfIn PDF document text
    • http://zawodydrwali.pl/app/webroot/userfiles/file/semis.pdfIn PDF document text
    • https://by-express.com/upfiles/editor/files/zakuputipexosutipakupit.pdfIn PDF document text
    • https://deycaterers.com/ckfinder/userfiles/files/49628973084.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_off0000d8a0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD8A0 22000 bytes
SHA-256: a3ccc8524a88e7ddc10ba67443e470d858143352e76a7881ed5ebe70faaa0058
font_01_sfnt_off000112a8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x112A8 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off00012abe.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12ABE 9992 bytes
SHA-256: 89a11b68153d0b7d8abbf2bd2581ba3919879dedda4c2ba1dffc646ec320fbca