Malicious PDF — malware analysis report

Static analysis result for SHA-256 0d370c79346382e8…

MALICIOUS

PDF

95.4 KB Created: 2022-05-05 12:45:36 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-14
MD5: d39af0401914296900425e638cd60f6d SHA-1: a272e1d6d4cd0d7eb22878060fc2230982e7c02a SHA-256: 0d370c79346382e8314630a23aeec0a56b3890eb0e35f04e1c41abe1f4d13dd4
224 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The sample is a PDF document that contains embedded JavaScript and a large number of external links, many pointing to compromised CMS uploads and disposable hosting. This indicates a link farm designed to redirect users to malicious content, likely for phishing or malware distribution. The embedded JavaScript, while not directly analyzed for specific actions, is a common component in such malicious PDFs to facilitate redirection or exploit vulnerabilities.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9981

Heuristics 8

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://lovig.co.za/YmrXLWy8?keyword=ffbe%20guide%20for%20beginners%20guide%20pdf%20printable PDF link annotation
    • http://www.szinespillanat.hu/admin/ckeditor/kcfinder/upload/files/tuvenibital.pdfIn PDF document text
    • https://wabalolosezuluf.weebly.com/uploads/1/3/4/4/134462862/gizegamimorizu.pdfIn PDF document text
    • http://stl-hk.net/userfiles/65797823541.pdfIn PDF document text
    • https://foreguguwikib.weebly.com/uploads/1/3/0/7/130775698/nusirewapa_mewavimibitiw_modexiriroxa_sezise.pdfIn PDF document text
    • https://tewujelelapo.weebly.com/uploads/1/3/4/8/134873489/4260902.pdfIn PDF document text
    • http://schunk-app.com/js/kcfinder/upload/files/18607739447.pdfIn PDF document text
    • http://aspbae.org/userfiles/file/15292679460.pdfIn PDF document text
    • https://fundacjanadzieja.com/images/wyswig_images/file/19946744561.pdfIn PDF document text
    • https://sipare.com.ar/wp-content/plugins/super-forms/uploads/php/files/9c7smjrj0s34rsjs41utbo87c4/3104432392.pdfIn PDF document text
    • https://dekukosozo.weebly.com/uploads/1/3/1/0/131070054/kideveximololu-lexukaj.pdfIn PDF document text
    • https://dubilovatigalis.weebly.com/uploads/1/3/4/7/134701517/kosujotoril-roredimibefanaf-pilabasasipurul-suwokewu.pdfIn PDF document text
    • http://www.grupotresa.com/uploads/kcfinder/upload/files/76484629305.pdfIn PDF document text
    • https://qualityroofinnandsuites.com/nbloom/fckuploads/file/89010243480.pdfIn PDF document text
    • https://www.alertgy.com/wp-content/plugins/super-forms/uploads/php/files/9088a0a5036cd80122e8f8e119b7a3eb/kafisopazefuxekiboroja.pdfIn PDF document text
    • https://wovegusokab.weebly.com/uploads/1/3/4/8/134850220/d16070126770564.pdfIn PDF document text
    • https://fotebumatuxukof.weebly.com/uploads/1/3/4/4/134485978/fekovasutu-satuzutazuselin.pdfIn PDF document text
    • https://rodefakuwutepez.weebly.com/uploads/1/3/4/3/134341390/regafo.pdfIn PDF document text
    • https://www.notusweb.com.br/ckeditor/ckfinder/userfiles/files/55733072279.pdfIn PDF document text
    • https://fikepeti.weebly.com/uploads/1/3/4/4/134489659/7178010.pdfIn PDF document text
    • https://okazionche.com/files/16944970548.pdfIn PDF document text
    • https://rioclaro.com.co/kcfinder/upload/files/paduzugidaj.pdfIn PDF document text
    • https://nugibunexediga.weebly.com/uploads/1/3/0/7/130740514/9138926.pdfIn PDF document text
    • http://zekejozsef.eu/FCKfeltoltott/file/49988006739.pdfIn PDF document text
    • http://www.alfainstal.pl/wp-content/plugins/formcraft/file-upload/server/content/files/16225a056936bc---38514091776.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_off0000fbec.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFBEC 10892 bytes
SHA-256: f43c35a8e082c6231607844a6f733726ddd8369002a327d28dfd5b5dfc8b9757
font_01_sfnt_off000114c4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x114C4 16996 bytes
SHA-256: 09f279d81460b94468c1f15c5282f09837f98f2b8e98cb0e87e36aa3ebffb5da
font_02_sfnt_off0001411c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1411C 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_03_sfnt_off0001592d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1592D 16092 bytes
SHA-256: 9d5144547e0b729630886a3ad3ce48e7da84b0115899dd9c2390406af6f0fecd

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