Malicious PDF — malware analysis report

Static analysis result for SHA-256 20cee82243e56a45…

MALICIOUS

PDF

230.2 KB Created: 2021-07-30 03:35:16 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-09-29
MD5: 5ea767c242ce6cb29906cb130fc80149 SHA-1: 3f0fb87babfb297a7aa7ec7d7e01ddaf1445a871 SHA-256: 20cee82243e56a4576641600bd9fd2b52fc41217a85af8ba6a293974cd14c119
134 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document was flagged by multiple heuristics, including a critical ClamAV detection for 'Pdf.Phishing.Trojan'. The presence of a link farm pointing to compromised WordPress upload storage and the 'Urgency / deadline lure' heuristic suggest a phishing attempt. While no scripts were extracted, the document's structure and URL patterns are consistent with malware delivery or phishing campaigns.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9793

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.
  • 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://masterok-kovka.ru/wp-content/plugins/super-forms/uploads/php/files/300b36e55f705470e7160dfa8e13f28d/nudate.pdf In PDF document text
    • https://t2sc.me/userfiles/43040283140.pdfIn PDF document text
    • https://netiko.ge/img/Data/file/piler.pdfIn PDF document text
    • https://nusbetaja2.com/contents//files/18376134331.pdfIn PDF document text
    • http://www.zulfugar.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1607d4eec56863---72338298444.pdfIn PDF document text
    • https://study-go.info/wp-content/plugins/super-forms/uploads/php/files/a2328133c1f5b7085e68636c918b788c/gupozoxutuzovosub.pdfIn PDF document text
    • https://rosewoodcity.org/nbloom/fckuploads/file/zolixadexojimuvifufaxur.pdfIn PDF document text
    • https://k9-warrior.com/wp-content/plugins/super-forms/uploads/php/files/vvfs8jbti32sanuefqcjjpe3e3/pepodugajokukuk.pdfIn PDF document text
    • http://businessplan-capalpha.fr/mbp/upload/images/images/upload/ckfinder/wivox.pdfIn PDF document text
    • https://abril.pe/wp-content/plugins/super-forms/uploads/php/files/l1mr1pn4oa21hqov1ag8vphi8t/25892806228.pdfIn PDF document text
    • http://longarmquiltacademy.net/fckeditor/userfiles/file/82283064445.pdfIn PDF document text
    • http://backkwang.com/userData/board/file/76551597216.pdfIn PDF document text
    • http://mindentudor.hu/userfiles/file/rewodekikokul.pdfIn PDF document text
    • https://netiko.ge/img/Data/file/sadodumabunatalur.pdfIn PDF document text
    • http://garmagostaran.com/Upload/file/xesalowisugobepa.pdfIn PDF document text
    • http://www.training4thefuture.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/1606f6dceb20b7---33409400255.pdfIn PDF document text
    • https://vakukh.ru/wp-content/plugins/super-forms/uploads/php/files/4ad57d946e7d4e614ab501e214496266/demekumurorerafejegenu.pdfIn PDF document text
    • http://saludocupacionalpso.com/home/wp-content/plugins/formcraft/file-upload/server/content/files/16085a4fe8c70a---bogikajukuzezomufer.pdfIn PDF document text
    • http://audiomaster.se/wp-content/plugins/formcraft/file-upload/server/content/files/16075e891efeaf---senuvofupere.pdfIn PDF document text
    • https://suhrsmad.dk/wp-content/plugins/formcraft/file-upload/server/content/files/1606c7d1bc848e---59656665879.pdfIn PDF document text
    • https://zakarpattya-tour.com/upload/bizowikagebokagom.pdfIn PDF document text
    • https://endoaccessories.com/wp-content/plugins/super-forms/uploads/php/files/7gi4ls061u8e8ne4uq7t01eed7/wakivukumadokenini.pdfIn PDF document text
    • http://kiavysocina.cz/UserFiles/File/lokojatuvenuwozovumigal.pdfIn PDF document text
    • http://aliancegroup.su/wp-content/plugins/formcraft/file-upload/server/content/files/160a9184a2dc3d---87327463213.pdfIn PDF document text
    • https://feedproxy.google.com/~r/skout/mBVl/~3/BkSY9tpko7c/uplcv?utm_term=santana+corazon+espinado+guitar+chordsPDF 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_off00032a19.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x32A19 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off00034230.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x34230 10984 bytes
SHA-256: 8ec99e280b2fb0003896076237ae376cc0f7f79b95d1ef3ad218cd8bad857d11
font_02_sfnt_off00035b6e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x35B6E 17816 bytes
SHA-256: 73c2e4a5975937de6ad13df1a2d2efeaa4173b058e2790e6ece77ffb22d5c7c1

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