Malicious PDF — malware analysis report

Static analysis result for SHA-256 df9897b07212faf9…

MALICIOUS

PDF

80.2 KB Created: 2021-07-01 11:42:39 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-05
MD5: 29d02bab4591617879872f1dd5f0ed1e SHA-1: 4fd4803eb1ceb38d8afa9f9e0f80c4171db09cfd SHA-256: df9897b07212faf94db6371288c8230a0ed20347df7b0df36a1d3d74aae84bd8
156 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a link farm pointing to numerous compromised WordPress sites and disposable hosting, a common tactic for phishing or distributing malware. The ML classifier and ClamAV detection strongly indicate malicious intent, likely related to phishing or malware delivery via these external links.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9953

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
  • 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.
  • 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://111-orte.de/testarea/cwsCMSlight/media/files/94871247685.pdf In PDF document text
    • https://k-kompany.ru/wp-content/plugins/super-forms/uploads/php/files/10a6f9dd6b262ccc3ce9d0c454302d8a/kijifulenovanavonodoj.pdfIn PDF document text
    • https://thesmithgrouphouston.com/wp-content/plugins/super-forms/uploads/php/files/d1d98696f5d8bba3493a3543b64ed3c7/22244924745.pdfIn PDF document text
    • http://giftboxvietthuy.com/upload/ck/files/70838303472.pdfIn PDF document text
    • http://thm-holding.ru/wp-content/plugins/super-forms/uploads/php/files/2773c485ecc299caa7d136b7e7aebfed/waxuleveroja.pdfIn PDF document text
    • http://basaritarim.net/admin/editor_resim/file/xixatidodigepova.pdfIn PDF document text
    • http://fresh-j.info/images/uploadedimages/file/dexonetines.pdfIn PDF document text
    • http://akcjonariusz.com/UserFiles/file/41264347992.pdfIn PDF document text
    • http://tpdw.pl/userfiles/file/difexezifat.pdfIn PDF document text
    • http://www.sandzthabapanel.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/160aa616d033ad---kuninozesezemadutoneda.pdfIn PDF document text
    • http://ceskylakros.cz/userfiles/file/dozikepolomonosiser.pdfIn PDF document text
    • http://nadiadsa.org/userfiles/file/pebakogemon.pdfIn PDF document text
    • http://geopraxis.it/userfiles/files/9859032377.pdfIn PDF document text
    • http://pensionpoint.cz/userfiles/files/45796223745.pdfIn PDF document text
    • https://aldea.work/wp-content/plugins/super-forms/uploads/php/files/60f4f59eb88ce6d73b49dd70d293517d/20921740688.pdfIn PDF document text
    • https://www.alignerco.ca/wp-content/plugins/super-forms/uploads/php/files/2d534a703d2b9a033248e234877cdaba/dovajotexibugo.pdfIn PDF document text
    • http://www.farparts.cl/wp-content/plugins/formcraft/file-upload/server/content/files/160dd7d5f08eb2---wodejafomudabemiwixubawi.pdfIn PDF document text
    • http://resheto.ru/users_images//fck/file/zepubakema.pdfIn PDF document text
    • https://arerp.kr/data/file///bisobidi.pdfIn PDF document text
    • http://eske.hu/wp-content/plugins/formcraft/file-upload/server/content/files/1607acf431ec53---2847359509.pdfIn PDF document text
    • https://www.asahinadigital.com/wp-content/plugins/super-forms/uploads/php/files/c2175j1agb1k4qvr1qifi9e77o/dumixatorutoxawipuzugivuz.pdfIn PDF document text
    • https://www.okcfarmersmarket.com/wp-content/plugins/super-forms/uploads/php/files/43e5f0a0eca4a80ed839e5aadddb05d6/robiwudojufasukilivaz.pdfIn PDF document text
    • https://husvagnsexpo.se/wp-content/plugins/formcraft/file-upload/server/content/files/16079fbdb522be---savifuxozepitadox.pdfIn PDF document text
    • https://www.davidcosz.de/wp-content/plugins/super-forms/uploads/php/files/ahi3j1rdn0g1s1i3sp1i94lnba/45583523589.pdfIn PDF document text
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/YTWXjIUwRh0/uplcv?utm_term=the+rooftop+sydneyPDF 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_off0000d74a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD74A 17112 bytes
SHA-256: ca26fdb9a451619fc36023d92dab6f65fa47031b13c8997f2d0b14596a679406
font_01_sfnt_off0001041a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1041A 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off00011c31.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11C31 10372 bytes
SHA-256: 3aac20d2b4ce50a2d26bb7b1319ec49f3073bbd1dfb85b40b015fac5d2347821