Malicious PDF — malware analysis report

Static analysis result for SHA-256 7beeef26cd2be451…

MALICIOUS

PDF

79.0 KB Created: 2021-09-06 14:35:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-12
MD5: f201a21db347d9f41668abbc11244ed9 SHA-1: ecf4777eb55207ad0a66d6daedcd4bb720067b37 SHA-256: 7beeef26cd2be4519d0328dfb3956263a77f2dff32677774f05b089708450448
164 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains embedded JavaScript and is identified as a link farm, with many URLs pointing to compromised WordPress sites and disposable hosting. This suggests the document is designed to redirect users to malicious content, likely for phishing or malware delivery. The ClamAV detection and ML classifier further support its malicious nature.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9985

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 http://omgmediatank.com/userfiles/files/diwozifoj.pdf In PDF document text
    • http://www.neslihanonur.com/wp-content/plugins/super-forms/uploads/php/files/d85ab8d361e98d7e962c6f8556b8454a/14153576340.pdfIn PDF document text
    • http://dabien.co.kr/wp-content/plugins/formcraft/file-upload/server/content/files/160cbacad892ac---52149815822.pdfIn PDF document text
    • https://cengilli.com/icerik_images/file/gejujikamolerimota.pdfIn PDF document text
    • https://cosplay-expo.it/ckfinder/userfiles/files/jalufibe.pdfIn PDF document text
    • https://goodline.by/userfiles/file/nuvuzugafetenimusoziloni.pdfIn PDF document text
    • http://psychologyforeverybody.com/ckfinder/userfiles/files/90091585036.pdfIn PDF document text
    • https://www.eziblank.com/wp-content/plugins/super-forms/uploads/php/files/flg120c5plqds47kk650np0qu0/16348941598.pdfIn PDF document text
    • https://fallsplat.se/file/46493248979.pdfIn PDF document text
    • http://all-vehicle.net/js/upload/files/xesonobumanoxagupenebol.pdfIn PDF document text
    • http://www.videocopilot.net/assets/public/ckfinder/userfiles/files/nuwunolapezitake.pdfIn PDF document text
    • http://archidaldegan.eu/userfiles/files/63952960310.pdfIn PDF document text
    • https://balajitutorial.com/admin/userfiles/file/71934317769.pdfIn PDF document text
    • https://www.die-umzugsfabrik.com/wp-content/plugins/formcraft/file-upload/server/content/files/160d93e6d6fb93---gowisibaparotalefuvijisa.pdfIn PDF document text
    • http://btfa.tw/upload/files/7849782552.pdfIn PDF document text
    • http://cuuhoatudong.com/upload/files/75192951558.pdfIn PDF document text
    • https://weinquartier.at/wp-content/plugins/super-forms/uploads/php/files/5b05f1633ea8c04eb8b6acb758de9c05/18693440185.pdfIn PDF document text
    • https://andrejc.si/files/file/65907916146.pdfIn PDF document text
    • http://akbmodel.com/wp-content/plugins/formcraft/file-upload/server/content/files/160e14aa4bf79b---51362237436.pdfIn PDF document text
    • http://svaz-podnikani.cz/files/file/17171649039.pdfIn PDF document text
    • http://nowyhotelik.pl/userfiles/file/makabiwulanusoxize.pdfIn PDF document text
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/1KS0DP0cxss/uplcv?utm_term=kobo+ereader+manualPDF 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_off0000d402.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD402 10280 bytes
SHA-256: 58682363b3853bb0aba00b25ab22c50c4702f13f5f41b97248b9efd3bae12d75
font_01_sfnt_off0000eb08.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEB08 16756 bytes
SHA-256: 8616b93d9fa14275034a03153bab0243429a719268921d0cf05bae9cf0f2833c
font_02_sfnt_off000116c9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x116C9 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1

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