Malicious PDF — malware analysis report

Static analysis result for SHA-256 e6e23a21430bebd7…

MALICIOUS

PDF

100.8 KB Created: 2021-06-26 14:32:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3)
MD5: f5e9263e8248a60a636642134c258b6d SHA-1: 5d2ae1f09d005fe54175ddbea98f6f94f3eaf269 SHA-256: e6e23a21430bebd72ba3e88beb42cc77a18a60a912950e8766c388afbb294204
156 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous links pointing to compromised WordPress sites, indicating a link farm designed to redirect users to malicious content. The ML classifier and ClamAV detection strongly suggest malicious intent, likely for phishing or malware distribution. Although no scripts were explicitly extracted, the PDF structure and embedded URLs are indicative of a malicious document, potentially leveraging embedded JavaScript for exploitation.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9923

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 https://yourtuscanyguide.com/wp-content/plugins/super-forms/uploads/php/files/msejf739uo5el5cgkvoeqitts7/57894310610.pdf
    • https://fortlauderdale-carservice.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609c7d69e2fb1---wizizudunekejoli.pdf
    • http://pocatellocampfire.com/wp-content/plugins/super-forms/uploads/php/files/npfliqingabfu8eq33kot4442h/3436582163.pdf
    • https://enville.com/wp-content/plugins/formcraft/file-upload/server/content/files/160afe2525513a---wubufo.pdf
    • http://talleresjpg.es/img/file/tipilimatovupid.pdf
    • http://bascobrunswick.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1607d6de05f426---78781071214.pdf
    • http://www.kidnuri.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607b4b1e4a20e---15022725717.pdf
    • http://bellezaeimagen.com.mx/wp-content/plugins/formcraft/file-upload/server/content/files/160b7661fb444c---54449755906.pdf
    • https://elpmarketing.ca/wp-content/plugins/super-forms/uploads/php/files/a9cf05a00c42f65edadf191a8fa3d750/maxijakikeraw.pdf
    • https://holocaustresearch.pl/nowy/photo/file/pokifez.pdf
    • https://coluer.ir/documents/file/polinubonomisujimuwojewob.pdf
    • https://www.physioaktivkramer.de/wp-content/plugins/formcraft/file-upload/server/content/files/16091ba2c2db1b---morixupugujovogazimoba.pdf
    • https://forkidsvietnam.vn/wp-content/plugins/super-forms/uploads/php/files/8i31absdqp70eiivib36dq6pk9/66007783892.pdf
    • https://pousadamarazul.tur.br/wp-content/plugins/formcraft/file-upload/server/content/files/16093a6cc568b7---98647711661.pdf
    • https://thepetrichortouch.com/wp-content/plugins/super-forms/uploads/php/files/bd6t7mh5a3i8lmptonjk83olkf/57851575350.pdf
    • http://endustriyelkiralama.com/wp-content/plugins/super-forms/uploads/php/files/mppcqth1g92o3ik5dqjlp3hcft/laxibaridesoze.pdf
    • https://djhelaly.com/wp-content/plugins/super-forms/uploads/php/files/81bbee701baeab7e245beba99e4f786a/53180054711.pdf
    • http://suportti.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c22fc820a60---74046385596.pdf
    • http://zwickerfoto.hu/_user/file/90923816999.pdf
    • https://www.hdontheroadnapoli.it/wp-content/plugins/formcraft/file-upload/server/content/files/160b8026f2d5ef---8792671733.pdf
    • http://tomaszfilipczak.pl/userfiles/file/bevofodinizurimoninuv.pdf
    • https://mission4recruitment.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607f77aaa353f---91066428668.pdf
    • http://ideas4mypool.com/userfiles/file/74938191934.pdf
    • http://uniroll.pl/user_images/file/naniruwekeliforisad.pdf
    • http://land89.com/ckupload/files/mogokuzasonumuvaxajopuzi.pdf
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/GLLx1DTH0VQ/uplcv?utm_term=philosophy+of+the+unconscious+pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://dejavu.sourceforge.net
    • http://dejavu.sourceforge.net/wiki/index.php/License

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00012502.bin
3e0763b54f022e0c193f686b54584db324e9cec8b774c30d1a7ad9f7583521c6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x12502 10668 bytes
font_01_sfnt_off00013d6d.bin
bf4a0e51a9b15b73a6aef9b8d2135e8cdd09144e22a46c151333227d5a4bb9c5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x13D6D 17928 bytes
font_02_sfnt_off00016bf7.bin
9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x16BF7 16792 bytes

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