Malicious PDF — malware analysis report

Static analysis result for SHA-256 941f13a17d9a422b…

MALICIOUS

PDF

67.4 KB Created: 2022-03-18 18:50:31 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-12
MD5: 4f1bf309147d4b138bb5bb644afb454a SHA-1: c9fa5465ae23869573b1e0288e59737d6e9779ba SHA-256: 941f13a17d9a422b3422caaa949a0d0c39349b2fe00d4b5c204919efa8b4d664
164 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF contains embedded JavaScript and numerous external links, many of which point to compromised websites or disposable hosting, indicating a phishing or malware distribution attempt. The ML classifier and ClamAV detection strongly suggest malicious intent, likely to lure users to malicious sites or download further payloads.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9826

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
  • 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.
  • 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://loheb.co.za/XSRYdR1H?utm_term=ardramee+dhanumasa+free PDF link annotation
    • http://restavratorstvo.com/ckfinder/userfiles/files/jogasekifo.pdfIn PDF document text
    • https://backcountryplayground.com/wp-content/plugins/super-forms/uploads/php/files/b8218563327f43dbcaba6c7142e88d6b/batoxuzaro.pdfIn PDF document text
    • http://bagiez.com/userfiles/file/nekozova.pdfIn PDF document text
    • http://www.donboscovizag.org/images/files/dagaxudejomanifet.pdfIn PDF document text
    • http://ppic.pl/www/js/kcfinder/upload/files/9424549748.pdfIn PDF document text
    • https://satuldelut.ro/ckfinder/userfiles/files/xipavakaxagimasisinawo.pdfIn PDF document text
    • https://webhostmurah.com/wp-content/plugins/formcraft/file-upload/server/content/files/162135512ae307---jodojamazurilesugak.pdfIn PDF document text
    • http://milcontabil.com.br/wp-content/plugins/super-forms/uploads/php/files/fe751so0f2t6vnqp6mest1g887/runes.pdfIn PDF document text
    • http://reguitti-engineering.it/userfiles/files/minexuxotubobolimaj.pdfIn PDF document text
    • http://santabruna.cl/upload/file/68069192399.pdfIn PDF document text
    • https://tahitotfaluovodak.hu/ckfinder/userfiles/files/givelejuwebezigusovikosa.pdfIn PDF document text
    • https://buyafranchise.org/files/files/kakenizez.pdfIn PDF document text
    • http://cascinamana.it/userfiles/file/betinomixome.pdfIn PDF document text
    • https://voskovefiguriny.eu/kcfinder/upload/files/xejatena.pdfIn PDF document text
    • https://gira-rozetki.su/kcfinder/upload/files/sedirer.pdfIn PDF document text
    • http://www.littletreepreschool.com/admin/kcfinder/upload/files/ziduwemoroferuji.pdfIn PDF document text
    • http://19nolumahmudiyeasm.com/depo/files/31631638865.pdfIn PDF document text
    • https://outforced.mdei.info/ckfinder/userfiles/files/98613962019.pdfIn PDF document text
    • http://cctsw.net/whly/up_files/FCK/file/20220208_062634_128.pdfIn PDF document text
    • http://gdgom.com/upload/file/220201090845906211b86xow8lyy97.pdfIn PDF document text
    • http://safakkereste.com/kcfinder/upload/files/woduxexodaduk.pdfIn PDF document text
    • http://kalecikliyiz.biz/panel/kcfinder/upload/files/62880094166.pdfIn PDF document text
    • http://ya-ke.cn/admin/upload/ponasetudirezaje.pdfIn PDF document text
    • http://www.krishnashouse.com/ckeditor/kcfinder/upload/files/78509443356.pdfIn PDF document text
    • http://hnht-electromagnet.com/d/files/bapowogovixi.pdfIn PDF document text
    • http://adanateknikservis.web.tr/wp-content/plugins/formcraft/file-upload/server/content/files/1621b12cba47f3---niwonewenimedugel.pdfIn PDF document text
    • http://zeshengtecphar.com/UploadFiles/FCKeditor/20220303095652.pdfIn PDF document text
    • https://pecel-piok.hu/images/files/pagabot.pdfIn PDF document text
    • http://nanjing.chinatupai.com/web/js/ckfinder/userfiles/files/89449821831.pdfIn PDF document text
    • https://www.mozartcantat.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1621bab6c9b49c---mavipoxopune.pdfIn PDF document text
    • https://legend-chang.com/UserFiles/files/79191797836.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_off0000a432.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA432 17424 bytes
SHA-256: 3344424ab3ec2bb5b47e32b431229a65ee6bcfece0e51c880f3dbbf5820056d0
font_01_sfnt_off0000d19f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD19F 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_02_sfnt_off0000e8bf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE8BF 10344 bytes
SHA-256: 0fb7e505d789a2124b53c22a3e40577022390220743d4054ded702927f616764