Malicious PDF — malware analysis report

Static analysis result for SHA-256 eb5e4fca7aca3dbd…

MALICIOUS

PDF

91.0 KB Created: 2021-07-08 22:52:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-05
MD5: 3ce810a390d75d8ab1fc3774a59a440b SHA-1: 0565b8ceab021a5d1d7b6811d2f50090a0e30d94 SHA-256: eb5e4fca7aca3dbd9526746b036bc6c4fe9f5b85db68f68857d603c02206f4d8
156 Risk Score

Malware Insights

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

This PDF file was identified as malicious by ML classifiers and ClamAV, indicating it likely contains exploit code. The file functions as a link farm, containing numerous URLs pointing to various websites, including those hosted on compromised WordPress installations. These links are likely intended to lead users to phishing pages or download further malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9822

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://pistant.ru/uplcv?utm_term=best+holy+priest+talents+shadowlands PDF link annotation
    • http://www.kevinbrooks.ca/wp-content/plugins/formcraft/file-upload/server/content/files/160bb23847a4f3---zodatutodurew.pdfIn PDF document text
    • https://lecormier-menuiserie.com/www/upload/files/perij.pdfIn PDF document text
    • https://deewo.de/wp-content/plugins/formcraft/file-upload/server/content/files/16070eba870413---tidelelofenure.pdfIn PDF document text
    • https://www.arphplumbing.co.uk/wp-content/plugins/super-forms/uploads/php/files/ir2hg8uiul0f2nrt10jluce1vn/juwisaxaxaxukopirax.pdfIn PDF document text
    • http://hoshitorionline.com/uploads/files/piguxajibigup.pdfIn PDF document text
    • https://championsforchildren.org/wp-content/plugins/super-forms/uploads/php/files/eadab23d6a29fb20f01a03ba7d959cec/lurenuxojadodew.pdfIn PDF document text
    • http://www.rlktechniek.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1608f425fa6539---wamefekerubad.pdfIn PDF document text
    • https://reinigungsfee007.de/wp-content/plugins/super-forms/uploads/php/files/e5iespdmnm6pg3ik01veq0blfv/biwoxake.pdfIn PDF document text
    • https://footballsod.com/images/ck-uploads/files/44745678460.pdfIn PDF document text
    • https://reifenscho.de/wp-content/plugins/formcraft/file-upload/server/content/files/1607892237b10b---64495296007.pdfIn PDF document text
    • https://www.sudburyhighspeedinternet.ca/wp-content/plugins/super-forms/uploads/php/files/edf3fd1973bf087750c10087f9525ffa/32839510173.pdfIn PDF document text
    • http://www.olympussverige.se/wp-content/plugins/super-forms/uploads/php/files/ddhjrbfns06hi27mpst9lffq6n/gotufidorun.pdfIn PDF document text
    • https://sv-fin.ru/wp-content/plugins/super-forms/uploads/php/files/1802ac3afa5d953b7715c119c0c51213/xexominar.pdfIn PDF document text
    • https://www.nordatec.com/wp-content/plugins/super-forms/uploads/php/files/rfoad08ph6cqnsk2os2p5dkqle/gixefaguzojiwebowikosali.pdfIn PDF document text
    • https://centar-znr-zop.hr/wp-content/plugins/formcraft/file-upload/server/content/files/16078f40383836---vuganavupazegubefesipuje.pdfIn PDF document text
    • https://www.cfo-search.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609819137f5c8---83695571901.pdfIn PDF document text
    • http://poltinik.ru/userfiles/file/fasalokosanibatafeka.pdfIn PDF document text
    • http://www.kmclogistics.com/wp-content/plugins/super-forms/uploads/php/files/d6264c3a9d8bc0784dd7e8f87c77c481/13228351702.pdfIn PDF document text
    • https://lakecountyoralsurgery.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608d1cc3b62d5---13519919025.pdfIn PDF document text
    • http://maasmartcity.com/userfiles/file/negonejapuzutarisofi.pdfIn PDF document text
    • https://cremeconferences.com/wp-content/plugins/super-forms/uploads/php/files/96c70c16a10375e91f086ed380fe2fec/40236050765.pdfIn PDF document text
    • https://study-go.info/wp-content/plugins/super-forms/uploads/php/files/e430bdd33358cbb2851f6f1b0e636fdf/kamitejekofixule.pdfIn PDF document text
    • http://thm-holding.ru/wp-content/plugins/super-forms/uploads/php/files/bec12344cfefef57230808276239102d/rifimosesetesoxofa.pdfIn PDF document text
    • https://wagaskar.com/media/lujusiwoboserazusabeto.pdfIn PDF document text
    • http://xperion.hu/wp-content/plugins/super-forms/uploads/php/files/6db184c3198aad5ecb32ff30f0fe3eec/93701299961.pdfIn PDF document text
    • https://francois-daulte.com/ckfinder/userfiles/files/51233675067.pdfIn PDF document text
    • https://leo.tw/upload/ckeditor/files/95938846346.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000fb48.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFB48 10740 bytes
SHA-256: b8361a418b7f011c4449b23260ce795c5095ab1ae8316a52928cba264d37ef98
font_01_sfnt_off00011403.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11403 19040 bytes
SHA-256: b965c7fc9df8ac48eda93793e774b93aabc370e8ed690bc9aba68a1d3bc07faf
font_02_sfnt_off000144b8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x144B8 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1

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