Malicious PDF — malware analysis report

Static analysis result for SHA-256 3dddea56d7598b8a…

MALICIOUS

PDF

376.2 KB Created: 2022-02-28 03:55:28 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-26
MD5: bcc206dab92a6c9452d5ce23eed6f73d SHA-1: 7b8306d693e05e0c5467b76c4b854e07f65abf00 SHA-256: 3dddea56d7598b8a1e79ac0db299126ed44f2478cf7cca94f3a4cda8f4807462
174 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains embedded JavaScript and links to external URLs, including one hosted on a compromised WordPress site. The heuristic 'PDF_SEO_UTM_REDIRECTOR_LINK' indicates an image lure linking to an SEO redirector, suggesting a phishing or malware distribution attempt. The presence of embedded JavaScript (PDF_JS) further supports the malicious intent, likely to execute further malicious code or redirect the user to a malicious site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.6485

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
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • 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.
  • 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://lazav.co.za/XSRYdR1H?utm_term=2018+acura+tlx+navigation+manual PDF link annotation
    • http://fabriziocar.it/userfiles/files/1639991806.pdfIn PDF document text
    • http://nsfeed.com/_UploadFile/Images/file/41600724004.pdfIn PDF document text
    • http://elmiraclassiccountry.com/wp-content/plugins/super-forms/uploads/php/files/4a90cc3cf49b2990a57bc81832686c4c/galetokemujajuwi.pdfIn PDF document text
    • https://istanajp2.com/contents/files/xowojofijuxifaruxutapijiz.pdfIn PDF document text
    • http://upakuika.com/img/file/17321915686.pdfIn PDF document text
    • http://traviet36.com/upload/files/moragixelapezuremopo.pdfIn PDF document text
    • http://www.atad.ae/emanager/assets/ckeditor/plugins/kcfinder/upload/files/92659665693.pdfIn PDF document text
    • http://royalleasingny.com/admin/images/file/toxowuzujomeme.pdfIn PDF document text
    • http://metabolitplus.ru/files/file/44417335564.pdfIn PDF document text
    • http://zhihepvb.com/upload/ckimg/files/202202230513391674.pdfIn PDF document text
    • https://bak.vn/upload/files/dojevimi.pdfIn PDF document text
    • http://photomoments.ru/userfiles/files/tawexagufulij.pdfIn PDF document text
    • http://saoz.sk/assets/kcfinder/upload/files/xawup.pdfIn PDF document text
    • http://mas.vacations/wp-content/plugins/formcraft/file-upload/server/content/files/160e3e04dcbd06---bikoper.pdfIn PDF document text
    • https://corumosmanlimakina.com/js/ckfinder/userfiles/files/xanawuluzo.pdfIn PDF document text
    • http://littlepearlspublishing.in/data/eimages/file/jupujevapemuzaforozib.pdfIn PDF document text
    • https://quizai.com/uploads/files/20923060673.pdfIn PDF document text
    • http://ranaghatpchsschool.org/userfiles/file/kimunetex.pdfIn PDF document text
    • https://leunamgroup.com/wp-content/plugins/super-forms/uploads/php/files/436740c4fb85e3ce23377e538f15369d/notuziwodijeruwij.pdfIn PDF document text
    • https://eravukappalpalli.com/userfiles/file/4038947977.pdfIn PDF document text
    • https://bbensonmft.com/wp-content/plugins/super-forms/uploads/php/files/d53eb5fe18c30b0a86b989ae0b246e88/sosipo.pdfIn PDF document text
    • http://olapromos.com/ola/uploads/editorImagesfiles/36869139691.pdfIn PDF document text
    • https://tomaszbizon.tomaszbizon.pl/web/uploads/files/10176721185.pdfIn PDF document text
    • https://kicksomeglass.com/wp-content/plugins/super-forms/uploads/php/files/2a33573f5588fad842f343873c4f9647/49799209307.pdfIn PDF document text
    • http://kaica.org.sa/ckeditor/kcfinder/upload/files/14599744026.pdfIn PDF document text
    • https://actaviaserica.org/board/file/files/71493475593.pdfIn PDF document text
    • http://kezheng.net/Upload/file/rudunidunotom.pdfIn PDF document text
    • http://lpxs168.com/filespath/files/20210929184256.pdfIn PDF document text
    • http://www.belladermeestetica.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1611dcc81a6199---zebazu.pdfIn PDF document text
    • http://valaptop.com/ImagesVA/file/xejazexebagifowobun.pdfIn PDF document text
    • https://arenerachicamocha.sinecsas.com/ckfinder/userfiles/files/viruraduveruzukexugumawe.pdfIn PDF document text
    • http://kidilangues.fr/js/kcfinder/upload/files/52288709698.pdfIn PDF document text
    • http://humansharehouse.com/userData/board/file/makixakupozikapig.pdfIn PDF document text
    • http://msamericapageant.com/clients/873634/File/43002040063.pdfIn PDF document text
    • http://chikatere.com/Upload/files/40477724477.pdfIn PDF document text
    • https://nhatngudongkinh.com/upload/ckupload/files/naxivul.pdfIn PDF document text
    • http://flightshop.jp/images/blog/file/12605606225.pdfIn PDF document text
    • https://acethamessecurity.co.uk/wp-content/plugins/super-forms/uploads/php/files/29dbbc533e7efb2a817e1caaa2e8f1e5/jinukifugafugawoxud.pdfIn PDF document text
    • https://sainaudit.mn/File/26131832731.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_off00056eb6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x56EB6 18260 bytes
SHA-256: b2714fc044395cb6d795be2b0008d4fcf290df80c9a343d8c0aa6a4b5da593cb
font_01_sfnt_off00059ed1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x59ED1 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_02_sfnt_off0005b5f1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5B5F1 10944 bytes
SHA-256: 792c86f4f6533e324fce6556eb835d0b604270eb7a3a5576c4c362efc5cdfa62