Malicious PDF — malware analysis report

Static analysis result for SHA-256 aee1f1e2194ed0e6…

MALICIOUS

PDF

89.1 KB Created: 2021-06-26 03:46:59 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-05
MD5: d7c34eacf0f5d7d35655c5e0ddff5e57 SHA-1: f5d3fc20ea7f901c494561c138e83f309c3dbdc1 SHA-256: aee1f1e2194ed0e62eb159ae68be9e0b75fd18e117ea1c2bae42b2395c04230a
156 Risk Score

Malware Insights

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

This PDF file was flagged by multiple heuristics and a machine learning classifier as malicious, with ClamAV identifying it as a phishing trojan. The file contains numerous links pointing to compromised WordPress sites and other disposable hosting, suggesting a link farm designed to redirect users to malicious content. The primary attack pattern involves directing users to external URLs, likely for phishing or further malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9942

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://garglob.ru/uplcv?utm_term=may+god+protect+all+of+us PDF link annotation
    • http://churchliferesources.org/wp-content/plugins/formcraft/file-upload/server/content/files/160989c5352f62---muvaluvu.pdfIn PDF document text
    • http://ttlengenharia.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1608b96ace67f4---mamivupukawisuniru.pdfIn PDF document text
    • http://www.radiopopiatej.com/wp-content/plugins/formcraft/file-upload/server/content/files/160910cab085cf---maridogo.pdfIn PDF document text
    • http://hongshengfish.com/uploadfiles/2021052405433161222.pdfIn PDF document text
    • https://www.simcoerecovery.net/wp-content/plugins/super-forms/uploads/php/files/r07d7o1bqdcvq8bs1kc9ih78mv/magazegajosipemekojuvo.pdfIn PDF document text
    • http://penoplex24.ru/wp-content/plugins/formcraft/file-upload/server/content/files/160c39436cb899---gaxufuginurut.pdfIn PDF document text
    • https://nam.it/wp-content/plugins/formcraft/file-upload/server/content/files/160a9b0acac093---xamalibuvozunajasazet.pdfIn PDF document text
    • https://canadianrelocation.net/wp-content/plugins/formcraft/file-upload/server/content/files/1608ebe24aa580---18906102660.pdfIn PDF document text
    • http://gennarimaq.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1607cd56252e6c---16354505592.pdfIn PDF document text
    • http://writtenmail.com/upload_images/file/doviteravujur.pdfIn PDF document text
    • http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608df004de932---66150840097.pdfIn PDF document text
    • http://vtdsbinhthuan.vn/public/uploads/userfiles/file/16393572719.pdfIn PDF document text
    • http://zonazero.es/userfiles/file/lizibenuxu.pdfIn PDF document text
    • http://cleangroupbd.com/ck/upload/files/jefolapenolelenerejifi.pdfIn PDF document text
    • http://aleeblog.com/wp-content/plugins/super-forms/uploads/php/files/k87hfvg3mf2c6vuptv7oe9vg60/8901296380.pdfIn PDF document text
    • https://smoothnomad.com/wp-content/plugins/super-forms/uploads/php/files/p0s268f2pit14sc7ccll79kjtu/zidiligobuwo.pdfIn PDF document text
    • http://zadonskiy.ru/wp-content/plugins/formcraft/file-upload/server/content/files/160b03d237bddf---66545161775.pdfIn PDF document text
    • https://dreamscapes.ca/dream_scapes/userfiles/files/luderoremo.pdfIn PDF document text
    • https://glowskincare.net/wp-content/plugins/super-forms/uploads/php/files/9ad0a1d8d9eed3f9f4aad976662b14fe/pisezosekabitav.pdfIn PDF document text
    • http://robertoantoniz.com/resources/original/file/nikajazabuxebidex.pdfIn PDF document text
    • http://www.sensible-seeds-premium.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607bfa18e06e6---25265829654.pdfIn PDF document text
    • https://kfz-gutachter-oliver-schiller.de/wp-content/plugins/formcraft/file-upload/server/content/files/1607b8f147fd3b---beroso.pdfIn PDF document text
    • http://crystalnymph.by/wp-content/plugins/super-forms/uploads/php/files/b91622e325b671d5054b4d1f0f05f032/14893400869.pdfIn PDF document text
    • http://ecbpolska.pl/wp-content/plugins/super-forms/uploads/php/files/352b1e30f6c9a971b9ffb8aed6d3f6db/xulakozuregidakizugo.pdfIn PDF document text
    • https://stef-nancy.fr/upload/document/wemisexigaku.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_off0000f427.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF427 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off00010c39.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10C39 18280 bytes
SHA-256: f63dab10527d304cccfda8bda31106536e03be8d2a8f240ac9034691ad683038
font_02_sfnt_off00013cb1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13CB1 10804 bytes
SHA-256: 7b2638766c41aa0f4e6e78a767292dfe40bb919d080f61731a63efcd3718da01