Malicious PDF — malware analysis report

Static analysis result for SHA-256 9d04cc03d06e8994…

MALICIOUS

PDF

86.9 KB Created: 2021-07-31 14:00:46 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-27
MD5: 0b210214ca7367cbcedc3b8e104d958e SHA-1: 395790b771436b387037152064be9af90955f76d SHA-256: 9d04cc03d06e8994066c77477678bc79180f0b0d85006e27bf0683e1c076ea70
164 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains embedded JavaScript and numerous external URIs, many pointing to compromised WordPress sites or disposable hosting, suggesting it functions as a link farm to distribute malicious content or phish for information. The presence of embedded JavaScript indicates potential for further exploitation or payload delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9991

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://drafthe.ru/uplcv?utm_term=como+ganhar+dinheiro+com+o+google+tradutor PDF link annotation
    • http://angelojrobles.com/admin_initial_test/userfiles/file/gijokuzex.pdfIn PDF document text
    • https://www.zochrot.org/ckfinder/userfiles/files/gubeduxemofopotazomodozop.pdfIn PDF document text
    • http://ljhalls.com/wp-content/plugins/super-forms/uploads/php/files/6ff2bbe83dba6e615419ae7c4eebb27c/84232852450.pdfIn PDF document text
    • https://aduanaldelvalle.com/userfiles/file/duparunapox.pdfIn PDF document text
    • http://decaldankinh.net/upload/files/dogajivifotonajebazumarez.pdfIn PDF document text
    • https://www.certificagreen.com/wp-content/plugins/formcraft/file-upload/server/content/files/160aa91953412f---gozalojena.pdfIn PDF document text
    • https://rrvchefs.com/wp-content/plugins/super-forms/uploads/php/files/a17d1fe743fd611d0903a294bf6bef99/mivapikakupomife.pdfIn PDF document text
    • http://hkt-optics.com/hkt/images/userfiles/file/91695957451.pdfIn PDF document text
    • http://andlupa.com/userfiles/file/wezav.pdfIn PDF document text
    • https://traveltokiev.com/wp-content/plugins/super-forms/uploads/php/files/79vkn0m5vuprr8514empjentd4/gukanekumanejuritukaputaj.pdfIn PDF document text
    • http://thepokewave.com/uploads/files/femev.pdfIn PDF document text
    • http://ar-intl.net/wp-content/plugins/super-forms/uploads/php/files/8b196qu1ppj7qeum0t9ikj8e60/zapupurafinomemuvinajewa.pdfIn PDF document text
    • http://vasilii-orlov.fun/wp-content/plugins/super-forms/uploads/php/files/1a818030a72fa86cb0a5a160e1edc331/90982475173.pdfIn PDF document text
    • https://www.adler-leitishofen.de/wp-content/plugins/formcraft/file-upload/server/content/files/16095a8a84bdf7---kejuxijorojexoz.pdfIn PDF document text
    • http://hasici-pristroje-eshop.cz/files/file/leperogelubutomuki.pdfIn PDF document text
    • https://abril.pe/wp-content/plugins/super-forms/uploads/php/files/l3rip7g9c31pd2ks177bm3mgha/137887178.pdfIn PDF document text
    • http://osheamaloneynylaw.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/37582560446.pdfIn PDF document text
    • https://empezo.xyz/js/ckfinder/userfiles/files/refusenedinigurodopabu.pdfIn PDF document text
    • https://gz-topstar.com/wp-content/plugins/super-forms/uploads/php/files/440d63cb944e0091fec93e7fb99f67b7/72650152879.pdfIn PDF document text
    • http://kirks-pool.com/wp-content/plugins/formcraft/file-upload/server/content/files/160782e88044e2---2561796830.pdfIn PDF document text
    • https://bf-pomosch.ru/wp-content/plugins/super-forms/uploads/php/files/799gc3o75dd0jis0dhni60qkv1/31223812219.pdfIn PDF document text
    • https://sygimportaciones.com/wp-content/plugins/super-forms/uploads/php/files/72svcdtjf2n8munbi8rj7g0m1s/63574530610.pdfIn PDF document text
    • https://primax.fr/wp-content/plugins/super-forms/uploads/php/files/suncbkucrm181vpduf96rjrdh6/54131493301.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e96d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE96D 21392 bytes
SHA-256: 7fef60719214ee08f70e50673ffe9a912b6315b5cb093d81aa861102861eb82f
font_01_sfnt_off00011cdc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11CDC 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off000134f3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x134F3 10780 bytes
SHA-256: 675e618d59b5ffa888123b11bc2f7ff4820cbd39941efbc6e6b94a652383469c

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