Malicious PDF — malware analysis report

Static analysis result for SHA-256 dc62002f714cccef…

MALICIOUS

PDF

79.8 KB Created: 2021-09-03 01:46:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-24
MD5: a3a6e92f9c9dd90434f8b91c84e386c3 SHA-1: 2b88190e9fb55422b31a502ca4b3e14e15ecfb95 SHA-256: dc62002f714cccefe385fadce5a07653ef53f13d6bb4b72e680d6bb5231a7505
164 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains embedded JavaScript and numerous external links, many pointing to compromised CMS uploads or disposable hosting, indicating a phishing or malware distribution attempt. The ML classifier and ClamAV detection strongly suggest malicious intent, likely to redirect users to malicious sites for further compromise.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9781

Heuristics 7

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://irlanc.ru/uplcv?utm_term=gosai+baganer+bhoot+pdf+free+download PDF link annotation
    • https://alrukn.co/userfiles/files/fonakome.pdfIn PDF document text
    • http://ipjanah.ir/wp-content/plugins/super-forms/uploads/php/files/3emotk6oqklh7bov6lke606r40/95560479328.pdfIn PDF document text
    • https://www.isnb.co.uk/wp-content/plugins/super-forms/uploads/php/files/db631322c9a599879726ac18ed6bd560/zotikasugizenef.pdfIn PDF document text
    • https://bistakalikotenetwork.com/userfiles/file/76351387565.pdfIn PDF document text
    • https://italvaping.com/file/82025588978.pdfIn PDF document text
    • http://heyumpnd.com/userfiles/file///sajodofopugelodemuxu.pdfIn PDF document text
    • https://adikkeempat.com/contents//files/26168184314.pdfIn PDF document text
    • https://expungemyrecordnj.com/wp-content/plugins/formcraft/file-upload/server/content/files/16087cd9ba3f8c---tenoninilofom.pdfIn PDF document text
    • http://lamdecal.com/Images_upload/files/fisodadubakesovewixaguku.pdfIn PDF document text
    • http://www.pirac.org/wp-content/plugins/super-forms/uploads/php/files/3af2a2ee11aaa7efd482fc489a5827a4/4371855159.pdfIn PDF document text
    • http://iviltra.lt/images/files/kemepekatuma.pdfIn PDF document text
    • http://huucodatlanh.com/userfiles/file/45636390113.pdfIn PDF document text
    • http://www.llmhospital.com/www/js/ckfinder/userfiles/files/powamikutina.pdfIn PDF document text
    • https://www.modianodesign.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607c8f354a57f---49782316078.pdfIn PDF document text
    • https://htchninc.com/d/files/bebeketufadojebod.pdfIn PDF document text
    • http://cropscipublisher.com/files/upfiles/file/nisamegafuzisebujida.pdfIn PDF document text
    • https://socialchangefactory.org/wp-content/plugins/super-forms/uploads/php/files/1f6260c55e6d0f993957ecd8921622fc/legotiwekijat.pdfIn PDF document text
    • https://economiadecomunion.com/ckfinder/userfiles/files/womugaluxupatajopojas.pdfIn PDF document text
    • http://gayaarchi.com/userfiles/file/20210714125848.pdfIn PDF document text
    • http://babamoleskine.com/files/file/95129973481.pdfIn PDF document text
    • https://indacphuc.com/wp-content/plugins/super-forms/uploads/php/files/adsek5nnl4i5ve1456dropvet4/fibokexuguworodotaviga.pdfIn PDF document text
    • http://popmetre.com/news/files/51851158837.pdfIn PDF document text
    • http://easternhoteljeju.com/FileData/ckfinder/files/20210705_8E7B86BA9EEB35A2.pdfIn PDF document text
    • http://cn-noah.com/uploadfile/file/54178028967.pdfIn PDF document text
    • http://kindervakantieweekdeurne.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160c0f72568d8f---85397561574.pdfIn PDF document text
    • http://www.realisthotel.com/wp-content/plugins/formcraft/file-upload/server/content/files/160e8e46bdb420---57715272370.pdfIn PDF document text
    • 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_off0000b7fb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB7FB 16256 bytes
SHA-256: c631c5210d1531d05a6e2f36765b11dbecbd434db968a2395daae1b6dd82d63d
font_01_sfnt_off0000ce16.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCE16 11040 bytes
SHA-256: c3ed17e0f7e438fb83feb90ded269c21ef32e44411c38a1f3d86785b81f8f059
font_02_sfnt_off0000e766.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE766 18112 bytes
SHA-256: 11121b6948ef6a7cc769b7a601734a631a2e61cf7424e6ceac09e98cc7d813da
font_03_sfnt_off00011726.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11726 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1

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