Malicious PDF — malware analysis report

Static analysis result for SHA-256 e2020d4f9a11c918…

MALICIOUS

PDF

83.1 KB Created: 2021-07-31 00:53:04 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-27
MD5: 4f9c12f896be77510e87f34f92ca1976 SHA-1: 4c9087f0ce92fea84eaf63c687a4c18f455e02fd SHA-256: e2020d4f9a11c91825d4e7d8fe8e0bc883131394da34b68b31b8a9e1dfc8e1c0
164 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

This PDF file was flagged by multiple heuristics, including a critical ClamAV detection and an ML classifier indicating maliciousness. It functions as a link farm, containing numerous URLs that point to external resources, many of which are hosted on compromised WordPress sites. The presence of these links suggests an attempt to redirect users to malicious sites for phishing or malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9984

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.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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://wastran.ru/uplcv?utm_term=set+it+off+film+online+gucken PDF link annotation
    • https://k-kompany.ru/wp-content/plugins/super-forms/uploads/php/files/eeecced937b274860aba9debb2b3fd70/49746275691.pdfIn PDF document text
    • https://www.pennlighting.com/wp-content/plugins/super-forms/uploads/php/files/6c1eafdc328f7cb5dd280f5668fd0aa4/15160487653.pdfIn PDF document text
    • http://kme-kme.cz/files/file/11102733110.pdfIn PDF document text
    • http://kadh.kr/bobod/upload/file/danotuxaxamaxatixi.pdfIn PDF document text
    • https://www.pal-kont.hu/wp-content/plugins/super-forms/uploads/php/files/f0853f0c3bba82ca966d4f0dc1627fc4/96504069468.pdfIn PDF document text
    • https://bowenpainter.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ce8dfd2a342---33508741725.pdfIn PDF document text
    • https://www.kiteschule-kiel.de/wp-content/plugins/formcraft/file-upload/server/content/files/160792ee987013---rijitebusivopawenoxukizo.pdfIn PDF document text
    • http://scmsalliance.com/clients/864514/File/33583231892.pdfIn PDF document text
    • http://lixupeng.com/uploads/files/ketubigojebureg.pdfIn PDF document text
    • http://edu-family72.ru/content/images/uploads/file/44255528805.pdfIn PDF document text
    • http://immobilieninvestors.eu/userfiles/file/kasogugofe.pdfIn PDF document text
    • https://www.bountyvacation.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ca476cb14db---tujevixupatofafok.pdfIn PDF document text
    • http://buddhavehicle.com/userfiles/file/11699086167.pdfIn PDF document text
    • https://www.costaverde.it/wp-content/plugins/formcraft/file-upload/server/content/files/160b682a646214---josiritinobubokeke.pdfIn PDF document text
    • https://sieuthigo.vn/upload/ck/files/66151082145.pdfIn PDF document text
    • http://szentistvanpatika.hu/upload/file/43849493999.pdfIn PDF document text
    • http://verduciautodemolizioni.it/userfiles/file/rigeru.pdfIn PDF document text
    • http://evpltravel.com/xv_image/file/38276650316.pdfIn PDF document text
    • https://theshairpodcast.com/wp-content/plugins/super-forms/uploads/php/files/3a3160ec9986f15905329c9a0b7bc923/11436598795.pdfIn PDF document text
    • https://www.icslights.com/wp-content/plugins/super-forms/uploads/php/files/7a981cb9b80da4a4df5c37c3e4ad044d/rejazudabilile.pdfIn PDF document text
    • http://www.johnknox.ch/wp-content/plugins/formcraft/file-upload/server/content/files/160c6801a02721---61203798651.pdfIn PDF document text
    • https://nscs.org/wp-content/plugins/super-forms/uploads/php/files/a39b7a82942337a071a1b680a3ba61ee/8481623825.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_off0000e0b6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE0B6 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off0000f8cd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF8CD 10516 bytes
SHA-256: 2d497ebd58aa95857f6c0b8b02787b91240d2e06c1dc4acc69c9d079775e141f
font_02_sfnt_off000110b7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x110B7 18232 bytes
SHA-256: 17cc7963614bcce9a7e0c1ee9e1a657c3a8fe0823456b1a65087874232e0955f

Open this report in the interactive analyzer, or submit your own file for analysis.