Malicious PDF — malware analysis report

Static analysis result for SHA-256 5ba2e5ccff7de534…

MALICIOUS

PDF

83.0 KB Created: 2021-07-19 09:17:47 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-09-14
MD5: fb7e3a9fe054b5d775dc5cb79374bc7a SHA-1: 2b45daaa85e5f967bdcbf19c94b0be78b84522bf SHA-256: 5ba2e5ccff7de534beecc110c64e654dfe018bbabe35e284670522c4eaee8992
156 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file contains a link farm with numerous URLs pointing to compromised WordPress sites, indicating a phishing or malware distribution attempt. The ML classifier and ClamAV detection strongly suggest malicious intent. Although no scripts were explicitly extracted, the structure and URL patterns are consistent with malicious PDFs designed to lure users to external sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9960

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.
  • 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
  • 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://akdenizokullari.k12.tr/wp-content/plugins/super-forms/uploads/php/files/l0qpl3sd9933lenoq9k9brjmsm/gabekajofixipuzaduxu.pdf In PDF document text
    • https://dunaweb.co/bg_image/files/xovugisusitumun.pdfIn PDF document text
    • http://argentum.com/wp-content/plugins/super-forms/uploads/php/files/jbqk87pkf7f0fpd9u3je31gtj2/82861415743.pdfIn PDF document text
    • https://gaziemirkentkonseyi.com/upload/files/48025967240.pdfIn PDF document text
    • https://webtraffic.ch/wp-content/plugins/super-forms/uploads/php/files/5hd4oub0ckklvtf7892l4rvoaa/kuleraforimuwuziruti.pdfIn PDF document text
    • http://www.commandinglife.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a665671ac52---51307179610.pdfIn PDF document text
    • http://www.lavalledesign.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609866c13bfb8---70934411325.pdfIn PDF document text
    • http://caacoding.net/wp-content/plugins/formcraft/file-upload/server/content/files/160b55c2617a2a---bonedofetaga.pdfIn PDF document text
    • http://aarogyamedico.com/userfiles/file/konazidinedal.pdfIn PDF document text
    • http://thankschicken.com/uploads/files/tivuwewutimisadafuvivixe.pdfIn PDF document text
    • http://www.deewanalarab.com/up_imgs/relupojutenob.pdfIn PDF document text
    • https://3dreamvr.com/wp-content/plugins/super-forms/uploads/php/files/84c676e4120df23b3eabd7bbbf411a42/3722904818.pdfIn PDF document text
    • http://www.asejnrtigers.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/160a30b0468f85---kegojuwujezowedefu.pdfIn PDF document text
    • http://xn--aknmedikal-yub.com/uploads/file/redarapupibafojijobig.pdfIn PDF document text
    • http://dharmapremipariwar.org/userfiles/file/55965479626.pdfIn PDF document text
    • http://ranahytta.com/ckfinder/userfiles/files/97571046085.pdfIn PDF document text
    • https://www.hauptsache.cc/wp-content/plugins/formcraft/file-upload/server/content/files/160d8e4945c9c6---zekukefetejar.pdfIn PDF document text
    • http://paynechapelduquesne.org/clients/9/9b/9b910c66cef3ae2d1bb1fd5804160a19/File/zotor.pdfIn PDF document text
    • http://kawoka.com/userfiles/file/sokapuvufusevuvorawemeba.pdfIn PDF document text
    • https://yastudio.net/wp-content/plugins/super-forms/uploads/php/files/cd8964ea0664b48c72c72d05bbcb6d16/65059000142.pdfIn PDF document text
    • http://www.grundys.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/160a548addc844---sutasanawave.pdfIn PDF document text
    • http://hotelborgodeipoeti.com/userfiles/files/7867179631.pdfIn PDF document text
    • http://nitexprofi.cz/userfiles/file/54484630001.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Uplcv/~3/YTWXjIUwRh0/uplcv?utm_term=ibanez+cp9+manualPDF 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_off0000e221.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE221 17004 bytes
SHA-256: ee62c71151dc8c644939b1fc382cb3e4a58506dfac725ce33d4f0a25872e6571
font_01_sfnt_off00010e2b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10E2B 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off00012642.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12642 10376 bytes
SHA-256: b2b7c5ee0cc569b1676c069e31acb9ae3a7d0808d00275046d9d658a3a1ad8ed

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