Malicious PDF — malware analysis report

Static analysis result for SHA-256 0db33888818e38cd…

MALICIOUS

PDF

79.0 KB Created: 2021-07-02 18:27:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-05
MD5: ba80ac9465fef76632380378defa7a25 SHA-1: 0a8462808124f5db87f7a4c3452e0d80c0b4eef7 SHA-256: 0db33888818e38cd6bd9391d54fc9901f3574e40e154ec92e2127962f5fd80a6
156 Risk Score

Malware Insights

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

The PDF contains a large number of links, many of which point to compromised WordPress sites and disposable hosting, indicating a link farm designed to lure users to potentially malicious content. The ML classifier and ClamAV detection strongly suggest malicious intent, likely related to phishing or malware distribution. No scripts were extracted, but the structure and URL analysis point to a phishing or redirection attack.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9933

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://www.stratcareerservices.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609e43cd63828---89882108573.pdf In PDF document text
    • http://klick-tipp.info/ckfinder/userfiles/publics/files/37708832114.pdfIn PDF document text
    • https://www.mercato.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/16090a867c64fd---41929205813.pdfIn PDF document text
    • http://nesemlak.com/test/images/uploads/files/jowigi.pdfIn PDF document text
    • https://samiznojmo.cz/wp-content/plugins/super-forms/uploads/php/files/b4406763d2c2e488b5002bbfd36b2304/ganalipafomexuzaro.pdfIn PDF document text
    • https://topjobsnepal.com/ckfinder/userfiles/files/suzurus.pdfIn PDF document text
    • https://jhservice.net/imagenes/galeria/files/komefupaginupibu.pdfIn PDF document text
    • https://plswa.com/wp-content/plugins/super-forms/uploads/php/files/25b8d848ed9c879f99084e3a25414180/4404973209.pdfIn PDF document text
    • http://pantryscan.com/123cars/imagefck/file/25961679744.pdfIn PDF document text
    • http://terminsk.by/pics/files/metusufo.pdfIn PDF document text
    • http://drvision.org/wp-content/plugins/formcraft/file-upload/server/content/files/160864b6230502---79896068818.pdfIn PDF document text
    • https://christembassyromford.org/wp-content/plugins/super-forms/uploads/php/files/fed66b8adeff6eae7385cafa63f724a6/17896865648.pdfIn PDF document text
    • https://www.hagensmarketing.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609ca3901ae84---27784445591.pdfIn PDF document text
    • https://creativitagh.com/pevron/www/img/file/46948178992.pdfIn PDF document text
    • http://cec-intl.ru/app/webroot/files/file/benaj.pdfIn PDF document text
    • http://stigstudiotecnico.it/userfiles/files/34866104419.pdfIn PDF document text
    • https://www.hospedeagora.com.br/wp-content/plugins/super-forms/uploads/php/files/nf6msegjsvh4n011m53h5q8n48/90070301401.pdfIn PDF document text
    • http://www.tobywells.org/media/fckdir/file/muzisom.pdfIn PDF document text
    • http://www.orhancoskun.com/wp-content/plugins/formcraft/file-upload/server/content/files/16082d51b02bf8---1632774541.pdfIn PDF document text
    • https://calmoinc.com/upload/editor/file/lodulali.pdfIn PDF document text
    • http://amindoost.ir/images/upload/files/xowupemugawuroj.pdfIn PDF document text
    • http://sutinlawkrabi.com/ckfinder/userfiles/files/lurefipigaxapidasomubasik.pdfIn PDF document text
    • https://sitebyside.ru/wp-content/plugins/super-forms/uploads/php/files/57a885d30fffb2e337cc9190083175ae/fubajomapajomitevu.pdfIn PDF document text
    • http://webscape.co.bw/wp-content/plugins/formcraft/file-upload/server/content/files/16078c932057ba---widebopitaxaratofowoweja.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Uplcv/~3/zMnd8XtcwSM/uplcv?utm_term=tiger+and+the+strawberryPDF 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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000baa8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBAA8 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off0000d2b9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD2B9 16312 bytes
SHA-256: 7d15b2d6d265aaca51dda18faee70a1b8fa9d95ed54cb111fb0895789092f9ae
font_02_sfnt_off0000e8c0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE8C0 16748 bytes
SHA-256: fec3f076b23eb4067d62faff22ff1b02bdcff01536b101ea0806caf020a30bfd
font_03_sfnt_off00011478.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11478 10664 bytes
SHA-256: 31024800fe72953c9834dd3ed1ab36659253feda268c44ca5667f3e5f881fa8e

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