Malicious PDF — malware analysis report

Static analysis result for SHA-256 f24ab599df57c1c6…

MALICIOUS

PDF

68.1 KB Created: 2021-08-15 15:13:36 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3)
MD5: 7d77346fd25dfff0d577ad6f16013b85 SHA-1: 93283bc60f164a282f9881bd219ccec79a0ecb93 SHA-256: f24ab599df57c1c639a5567f02c01693cd4a901ed876b6c5c4fae37e19a50439
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF file was flagged by multiple heuristics as malicious, including ClamAV detecting it as a phishing trojan. It contains a link farm pointing to numerous compromised WordPress sites, likely designed to lure users into clicking malicious links. The presence of embedded URLs and the nature of the link farm suggest an attempt to distribute malware or phish for credentials.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7906

Heuristics 5

  • 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
  • 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://provisionsinternational.com/wp-content/plugins/formcraft/file-upload/server/content/files/16089a182611d9---dilef.pdf
    • https://growlocals.com/wp-content/plugins/super-forms/uploads/php/files/e9619fc50e3eecf15ea580157b5e40b7/nikes.pdf
    • http://www.x454.com/wp-content/plugins/super-forms/uploads/php/files/hcbl7modrqch30qoolav4r8b65/94352439856.pdf
    • http://buergerforum-tirol.at/file/76611668818.pdf
    • http://theopenhouseclub.com/wp-content/plugins/super-forms/uploads/php/files/73ceac35d80dc3dbdf97207bede8d8f2/sipimaduzafizovana.pdf
    • https://medok18.ru/wp-content/plugins/super-forms/uploads/php/files/e7413dcf8164fe93f2ffaf570429b529/84546828827.pdf
    • https://www.chinacimctrailer.com/wp-content/plugins/super-forms/uploads/php/files/d6c3b3dec28e6de4dfeda1e37592a92d/28971656166.pdf
    • https://frasertechno.com/wp-content/plugins/formcraft/file-upload/server/content/files/160eca12868cfe---60914116392.pdf
    • http://iamsoldierfit.com/wp-content/plugins/formcraft/file-upload/server/content/files/16072881910a54---dawaxagotoxobozivokili.pdf
    • http://alpha-th.com/userfiles/file/duwaxasuxiriwopisemimur.pdf
    • https://ipic.vn/userfiles/file/79187263753.pdf
    • https://www.temsilcisitesi.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bdbe59511dd---63964441127.pdf
    • http://yournamebadges.com/withyourdog/cms_uploads/file/71989102628.pdf
    • http://www.optionassurance.ca/wp-content/plugins/formcraft/file-upload/server/content/files/16072b108eca75---jagijixupabuleri.pdf
    • http://sequirk.ie/userfiles/file/rejalewajitizifebi.pdf
    • http://for-rent-antwerp.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a1b9ca3e0c0---81932119575.pdf
    • https://heritagelogs.com/wp-content/plugins/super-forms/uploads/php/files/a3cnia55mob4hlhdespha61707/65084335259.pdf
    • http://esoftland.com/userfiles/file/81609385282.pdf
    • http://gtshotel.it/images/file/56647963508.pdf
    • https://energiadirect.pl/application/resources/ckfinder/userfiles/files/2186895013.pdf
    • http://pulsarvn.com/media/ftp/file/pizajufobidakiwajibu.pdf
    • http://bandenplaats.nl/cmsimages/file/22152523584.pdf
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/ngfLrbzwjls/uplcv?utm_term=the+tell+tale+heart+worksheet+answer+key
    • http://dejavu.sourceforge.net
    • http://dejavu.sourceforge.net/wiki/index.php/License

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d6bd.bin
4e2c15ec892a81fee7260d3b18e77482ebec22f15b1d695d8d798db131cca822		 pdf-font-stream PDF embedded font (sfnt) at offset 0xD6BD 16484 bytes

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