Malicious PDF — malware analysis report

Static analysis result for SHA-256 5c2eed4c74cb2540…

MALICIOUS

PDF

113.9 KB Created: 2021-06-30 04:25:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-05
MD5: 2aae4afe39fe7228dfb1acf792fdaea0 SHA-1: 67074763f05c2b6cfd1cd2302a2487095ad2f47b SHA-256: 5c2eed4c74cb2540161da383b1215b2d4f63a941db4afcc5c85d48dfedb6c8cc
196 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

This PDF file was flagged by multiple heuristics, including a high-confidence ML classifier and ClamAV, indicating malicious intent. The 'SE_BROWSER_INSTALL_LURE' heuristic strongly suggests the document is designed to trick users into installing malicious browser extensions or updates. While no scripts were directly extracted, the presence of numerous links to potentially compromised WordPress upload directories and disposable hosting points to a distribution mechanism for further malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9948

Heuristics 7

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Browser extension / update installation lure high SE_BROWSER_INSTALL_LURE
    Document tells the user to install a browser extension, plugin, viewer, or browser update to view content — a common social-engineering path for credential theft and malware installation
  • 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://www.wflorlando.com/wp-content/plugins/super-forms/uploads/php/files/f06a79713cf19972b61cb5f0077fce28/mimemalenijizabipinupat.pdf In PDF document text
    • https://lakecountyoralsurgery.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606c790fce609---3112757712.pdfIn PDF document text
    • https://papiratisk.cz/soubory/36906495323.pdfIn PDF document text
    • http://pvsystexperts.com/wp-content/plugins/super-forms/uploads/php/files/6mrg8s119irig0hgrlb4g5l212/dixujolosanoxawonukugumu.pdfIn PDF document text
    • http://baschin-heizung.com/meineBilderAlbertGrundschule/file/pawalikuzajobege.pdfIn PDF document text
    • http://festivaldeliteraturadepereira.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609450466638d---vesemugiguzerajemik.pdfIn PDF document text
    • http://exactblue.com/wp-content/plugins/formcraft/file-upload/server/content/files/160cca3d26a9de---podiwupalupod.pdfIn PDF document text
    • https://www.medicalart.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/160b20138ad368---fimigiredodajuxunaloxev.pdfIn PDF document text
    • https://www.taxikladis.gr/wp-content/plugins/formcraft/file-upload/server/content/files/1606d6639ce6b7---lupunonakika.pdfIn PDF document text
    • https://tiklatakip.com/calisma2/files/uploads/96952101880.pdfIn PDF document text
    • https://m-astar.com/UserFiles/files/povodededu.pdfIn PDF document text
    • https://agribusiness.pk/wp-content/plugins/formcraft/file-upload/server/content/files/1607ae36e76504---9802094768.pdfIn PDF document text
    • http://modelkyujin.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607740a3e48df---lojenafevefinuxag.pdfIn PDF document text
    • http://hagelkonzept.de/userfiles/file/turinezumomuna.pdfIn PDF document text
    • https://bya-ingenieria.com/ckfinder/userfiles/files/besaranimim.pdfIn PDF document text
    • http://alvasari.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a134f462e04---17902511870.pdfIn PDF document text
    • https://ateneoarbonaida.com/wp-content/plugins/formcraft/file-upload/server/content/files/16096c0e84aad0---47433503040.pdfIn PDF document text
    • http://ausafe.net/images/art/files/49046597037.pdfIn PDF document text
    • https://forumhotel.by/wp-content/plugins/super-forms/uploads/php/files/igt3hokja19lorrvcnbcs6id52/sovazenunupukej.pdfIn PDF document text
    • http://al-bandak.com/userfiles/file/45502076546.pdfIn PDF document text
    • https://www.straightmyteeth.com/wp-content/plugins/super-forms/uploads/php/files/868dd7ba4233067503d7d9b1aedbbfc1/52444674142.pdfIn PDF document text
    • https://baxsporthorses.nl/userfiles/file/91889492526.pdfIn PDF document text
    • http://www.jcca.co.in/wp-content/plugins/formcraft/file-upload/server/content/files/1608ddc22420e8---kirad.pdfIn PDF document text
    • https://webmenuplus.com/images/file/tajetiwewiwadidiru.pdfIn PDF document text
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/1xuhb7AK25c/uplcv?utm_term=install+android+apk+on+chromebookPDF 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_off000158ae.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x158AE 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off000170c0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x170C0 18352 bytes
SHA-256: 17f97acdd6b06f73de43a880e124aa908876af86eed9c4219a644e260e202a25
font_02_sfnt_off0001a152.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1A152 10960 bytes
SHA-256: b9ea6a10e696b1f0343cf0063fb30f218b7e0bccc81be4320063a97ddaea73dc

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