Malicious PDF — malware analysis report

Static analysis result for SHA-256 48e5d7b26eb0044d…

MALICIOUS

PDF

121.4 KB Created: 2021-07-25 08:24:14 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-05
MD5: 97367639f6d4565541dcb01410ffaba8 SHA-1: c5d5ac157cf0b1058f66ab9cc4f30e1f0d9238fc SHA-256: 48e5d7b26eb0044dbd8a1902732a79ec9c09e4da2099bf073163b9b55316eed1
164 Risk Score

Malware Insights

MITRE ATT&CK
T1059.007 JavaScript T1566.001 Spearphishing Attachment

The PDF contains embedded JavaScript, which is a common technique for delivering malicious payloads or redirecting users to phishing sites. Several heuristics indicate the PDF is part of a link farm hosted on compromised or disposable domains, suggesting an attempt to distribute malware or phish for credentials. The ML classifier and ClamAV detection strongly support the malicious nature of this file.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9901

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 https://binarbaidfabrication.com/public_html/userfiles/file/bipeduvufesulitutower.pdf In PDF document text
    • https://ilc.ua/wp-content/plugins/super-forms/uploads/php/files/i9um5uts48tsu72c5e76g276m5/54171873549.pdfIn PDF document text
    • http://plovdivweek.com/app/templates/js/ckfinder/userfiles/files/xipimezujuvotuzofagigalul.pdfIn PDF document text
    • https://vinisfarm.com/wp-content/plugins/super-forms/uploads/php/files/97d436e70e56eefb73d6caf8a0f101c5/82614586503.pdfIn PDF document text
    • https://encouragingmath.com/wp-content/plugins/super-forms/uploads/php/files/6d2870fc9a3ffa936b46ac9cf0c6ac62/53701965543.pdfIn PDF document text
    • https://www.eziblank.com/wp-content/plugins/super-forms/uploads/php/files/99fe4494ac6d50707517063739f3eed4/79267287628.pdfIn PDF document text
    • https://transcendenceit.com/wp-content/plugins/super-forms/uploads/php/files/831b1b5eeef53e5281096f851f436f43/dugazulevegugofigaw.pdfIn PDF document text
    • https://mobilityservices.it/file/suwazorumezi.pdfIn PDF document text
    • https://g3az.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609847e073f8d---nezakaw.pdfIn PDF document text
    • http://diclenakliyat.com/userfiles/file/bumamilotufenebolosigeg.pdfIn PDF document text
    • https://bititechnika.com/uploads/file/vazukajuk.pdfIn PDF document text
    • https://www.djluk.co.uk/wp-content/plugins/super-forms/uploads/php/files/4g8jn121pj55j0iq21jr5f13qt/xubob.pdfIn PDF document text
    • https://stopserv.ru/files/file/tifugutesoviwuvurefeb.pdfIn PDF document text
    • http://chapelguild.com/images/usr/zorilusizemefuxuboveb.pdfIn PDF document text
    • http://www.phonefixcomo.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606c8471e9c46---zudoguziferakakigovus.pdfIn PDF document text
    • http://aodaibooking.com/FileData/ckfinder/files/20210718_8EF66021E2A8460F.pdfIn PDF document text
    • http://www.iso-clean.fr/wp-content/plugins/formcraft/file-upload/server/content/files/16080a6411cb71---rofiwepi.pdfIn PDF document text
    • https://www.brunosistemi.com/wp-content/plugins/formcraft/file-upload/server/content/files/160cac25932379---86611436192.pdfIn PDF document text
    • https://criteriacambio.com.br/wp-content/plugins/super-forms/uploads/php/files/83ktlq9magunntcstu0iiqbctd/xurusi.pdfIn PDF document text
    • http://bekkercoon.ru/ckfinder/userfiles/files/suvesunulurub.pdfIn PDF document text
    • https://scheidungsrecht-best.de/userfiles/file/luwidige.pdfIn PDF document text
    • http://bukharageorgia.com/sites/default/files/file/72009024804.pdfIn PDF document text
    • http://gennarimaq.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160912e2eacd29---ruvuweva.pdfIn PDF document text
    • https://www.kngroup.com/wp-content/plugins/formcraft/file-upload/server/content/files/16071a3b204c50---60384036801.pdfIn PDF document text
    • https://ajitcoatings.com/uploads/gulama.pdfIn PDF document text
    • http://krindustria.com.br/site/wp-content/plugins/formcraft/file-upload/server/content/files/1608d57ec2527e---16715093144.pdfIn PDF document text
    • https://feedproxy.google.com/~r/skout/mBVl/~3/DOqCt-cVA4I/uplcv?utm_term=el+cayado+del+pastor+pdf+gratisPDF 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_off0001744e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1744E 18868 bytes
SHA-256: 54dee43cf0140d525d92b77376acedf21f49359afef4cdafad0da600bf495269
font_01_sfnt_off0001a490.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1A490 10788 bytes
SHA-256: edebb10115d33264c2a31f1c843ae556bdecf22c199752a6ec883e98be6902d4
font_02_sfnt_off0001bd65.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1BD65 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1