Malicious PDF — malware analysis report

Static analysis result for SHA-256 eede5a4522c12f97…

MALICIOUS

PDF

88.0 KB Created: 2021-06-30 05:46:42 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-05
MD5: fa8aebc1b3eeb75cd4105141bb7bf70e SHA-1: f1af265ab1efc41bf4bed91d4b3f21b0d52fefbc SHA-256: eede5a4522c12f97b85894a6ab27f26b085f71ece676014a20b7f3880c1adceb
156 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.001 User Execution: Malicious Link

The file was detected by ClamAV as Pdf.Phishing.Trojan and flagged by an ML classifier, indicating malicious intent. It contains numerous links to external websites, many hosted on compromised CMS platforms, suggesting it functions as a link farm to distribute malicious content or phish for information. The presence of PDF-specific heuristics like 'PDF_SEO_DISPOSABLE_LINK_FARM' further supports this attack pattern.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9835

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 http://philippinesroadshow.com/wp-content/plugins/super-forms/uploads/php/files/588868e589bde20e4fc9a9ebd5af711f/71110070762.pdf In PDF document text
    • http://3handseg.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b600311464d---54780799605.pdfIn PDF document text
    • https://k-kompany.ru/wp-content/plugins/super-forms/uploads/php/files/802a7995465ccdacae94c6a771cedc61/61519132160.pdfIn PDF document text
    • https://www.andeanskyline.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607a11fa59486---ramesut.pdfIn PDF document text
    • https://wcdt.co.th/wp-content/plugins/super-forms/uploads/php/files/edrkllfmg9t2mcipns1chllfij/ponibafunumom.pdfIn PDF document text
    • http://king-pro.com/userfiles/files/kozavilanada.pdfIn PDF document text
    • https://alphacleanwashing.com/wp-content/plugins/super-forms/uploads/php/files/710af5dfe05f19fef3c97ece550ad939/bovajudiniguro.pdfIn PDF document text
    • https://grandegroup.net/files/60916292789.pdfIn PDF document text
    • https://allcreaturesinc.com/files/files/61045024258.pdfIn PDF document text
    • https://www.18fire.com/wp-content/plugins/super-forms/uploads/php/files/20008e9cda48613296b71a39e6baa15c/1422807318.pdfIn PDF document text
    • http://3duct.com/wp-content/plugins/formcraft/file-upload/server/content/files/16090be1f6c769---jojir.pdfIn PDF document text
    • http://bobas24.pl/Upload/file/50081392460.pdfIn PDF document text
    • https://ilcaminodaugo.it/file/sugitezidujiwavozepive.pdfIn PDF document text
    • https://strategieb2b.com/userfiles/file/15497460611.pdfIn PDF document text
    • https://tuabogadoangel.com/wp-content/plugins/super-forms/uploads/php/files/b2d85de9b1d534009fe57f1a2fcee667/nejibi.pdfIn PDF document text
    • http://asalsold.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607865162f1cf---65851132518.pdfIn PDF document text
    • http://scenekunstskolen-efteruddannelsen.dk/ckfinder/userfiles/files/13367306774.pdfIn PDF document text
    • http://www.gradur.ba/wp-content/plugins/formcraft/file-upload/server/content/files/160c940ff85993---lixupuxofim.pdfIn PDF document text
    • https://www.swissfillon.com/wp-content/plugins/super-forms/uploads/php/files/40a52d7cf4a01bd8b9cdd7756f6a3178/reronidusaru.pdfIn PDF document text
    • https://pametnidom.hr/pametne_kuce/userfiles/file/telutekozoravimetixetiko.pdfIn PDF document text
    • http://4bx.pl/public/file/15098654083.pdfIn PDF document text
    • http://www.awakohchang.com/image/upload/File/ibifowijijewetijigariva.pdfIn PDF document text
    • https://www.vigo.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/1607d0ecdbbde3---janap.pdfIn PDF document text
    • https://rocksoliddesigns.biz/userfiles/file/xojonoregeramegakixajaser.pdfIn PDF document text
    • http://ttlh.vn/storage/ckfinder/files/tepoxetoge.pdfIn PDF document text
    • http://kennyre.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c565d63806a---xojufopurifemisijemasiw.pdfIn PDF document text
    • https://feedproxy.google.com/~r/skout/mBVl/~3/3CAf4wW3hvY/uplcv?utm_term=how+to+cast+phone+videos+to+tvPDF 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_off0000f222.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF222 10608 bytes
SHA-256: 95318fa9a7d2753129b2d30b17810d1c4c8029e7196903649d9bb78089c9178d
font_01_sfnt_off00010a5f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10A5F 17768 bytes
SHA-256: 68e640a2b5c75aeb07a945d879b4134f34d7a91e2bb67c33c66ce64353bb2b75
font_02_sfnt_off000138d5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x138D5 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1