Malicious PDF — malware analysis report

Static analysis result for SHA-256 94131d7689964161…

MALICIOUS

PDF

78.4 KB Created: 2022-04-13 10:51:53 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-12
MD5: 413b57a6e924fa6d65f42488eac01f73 SHA-1: 0c81f63d7477109028dd54e59c8c4b5943fb534e SHA-256: 94131d7689964161a42ce1d844a473625cb45f3dc6975acf7aecc0a80a5d09c1
126 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The sample is a PDF document flagged by ML classifiers and ClamAV as malicious. It contains numerous embedded URLs, many of which point to disposable domains or link farms, suggesting a phishing or malware distribution attempt. While no scripts were explicitly extracted, the PDF structure and embedded URIs are indicative of malicious intent, likely to redirect users to compromised or malicious sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9987

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
  • 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://mifuj.co.za/YmrXLWy8?keyword=integration%20of%20cos%5E5%20x%20dx PDF link annotation
    • http://englandmatchshirts.com/assets/file/detosazafidimi.pdfIn PDF document text
    • http://phutungvespaco.com/luutru/files/lufegazimozefuguzasulixup.pdfIn PDF document text
    • https://pirexabi.weebly.com/uploads/1/3/4/8/134885086/7909693.pdfIn PDF document text
    • http://vdgairconditioning.nl/wp-content/plugins/formcraft/file-upload/server/content/files/162139e4bcc0d1---20662459003.pdfIn PDF document text
    • https://mannoorpally.com/uploads/file/83828631379.pdfIn PDF document text
    • http://vivo-mebel.ru/upload/file/61972452256.pdfIn PDF document text
    • https://tonewebebajuja.weebly.com/uploads/1/3/5/3/135319275/97d6646521.pdfIn PDF document text
    • http://www.caribbeandentist.com/wp-content/plugins/formcraft/file-upload/server/content/files/16231e5c4d89f9---89197247890.pdfIn PDF document text
    • https://ecoverservice.be/gallery/file/84077922611.pdfIn PDF document text
    • https://emmaushuis.org/pages/99823623216.pdfIn PDF document text
    • http://gospel-pour-100-voix.com/fichiers/newsletter/file/bumafonitowujafeluz.pdfIn PDF document text
    • http://durakgiyim.com/uploads/icerikler/files/paxikawoko.pdfIn PDF document text
    • https://pepsima.biz/files/file/12834675446.pdfIn PDF document text
    • https://securitydm.net/slicice/file/92607563985.pdfIn PDF document text
    • http://rybarict.cz/webpagebuilder/ckfinder/userfiles/files/rijeredutovipanixefaxo.pdfIn PDF document text
    • https://abrasco.org.br/ckfinder/userfiles/files/gamevotimunejaletexemag.pdfIn PDF document text
    • http://ahcxdq.com/uploads/file/012135077273.pdfIn PDF document text
    • https://www.canoe.ro/Extras/ckfinder/userfiles/files/65703781666.pdfIn PDF document text
    • http://www.ufolep-69.com/contenus/files/51617466721.pdfIn PDF document text
    • https://vowagogo.weebly.com/uploads/1/3/5/3/135307183/jeraxedunipalorutun.pdfIn PDF document text
    • http://yokosohk.com/files/fckfiles/file/61650849276.pdfIn PDF document text
    • http://shinhwajudan.com/userData/board/file/2676945536.pdfIn PDF document text
    • https://karsdanapazari.com/panel/kcfinder/upload/files/rutetogiruwerukegovo.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_off0000bd14.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBD14 19904 bytes
SHA-256: 19cbb6ac834955ab0bf9e068641c02677cd377c327787ba9f7405e8b2e2b9926
font_01_sfnt_off0000f165.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF165 10844 bytes
SHA-256: 165c37ce3c5ec8330c7b8825230531078ecf89c6c892cdaa2d797d14e6f9f16d
font_02_sfnt_off00010a77.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10A77 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_03_sfnt_off00012284.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12284 1780 bytes
SHA-256: 94da071d87cd7ee37ee961f4999d5c8ba7ea74871ed8c8102e48280920c52ce6