Malicious PDF — malware analysis report

Static analysis result for SHA-256 96e82794d665acfe…

MALICIOUS

PDF

76.6 KB Created: 2021-07-17 19:15:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-16
MD5: 38ff78fba81de4013ff8e80475f624b5 SHA-1: 19574053ff9c2fef6946d404b1652d2994651f8d SHA-256: 96e82794d665acfe35ae1881a1aac823d6b96e7ebca0f7be868cd0cfacb37aec
156 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF file was detected as malicious by ClamAV and an ML classifier, indicating a phishing or trojan payload. The heuristics reveal it functions as a link farm, with numerous URLs pointing to compromised CMS uploads and disposable hosting. While no scripts were explicitly extracted, the nature of the URLs suggests a potential for JavaScript execution or further malicious content delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9948

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://weblative.com/wp-content/plugins/super-forms/uploads/php/files/02miotumlbbrbp1bsv7pkbo6hi/82871956078.pdf In PDF document text
    • http://buergerforum-tirol.at/file/52092899743.pdfIn PDF document text
    • https://www.saenger-ohg.de/wp-content/plugins/formcraft/file-upload/server/content/files/160c3c79eb915d---pezosoda.pdfIn PDF document text
    • https://nowbali.co.id/wp-content/plugins/formcraft/file-upload/server/content/files/16091e6a551456---52845323375.pdfIn PDF document text
    • http://assytekservizi.com/userfiles/files/44717135343.pdfIn PDF document text
    • https://rajaunited.com/contents//files/fozut.pdfIn PDF document text
    • http://www.a-fairys-choice.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609784beb344c---18565581697.pdfIn PDF document text
    • http://originalcheck.it/public/img_admin/file///xifupe.pdfIn PDF document text
    • http://www.iso-clean.fr/wp-content/plugins/formcraft/file-upload/server/content/files/1609851de1656d---53465831987.pdfIn PDF document text
    • http://piemonteforyou.it/userfiles/file/bisafapejamaximadugaze.pdfIn PDF document text
    • https://law.com.sg/wp-content/plugins/super-forms/uploads/php/files/a1fe68f2ca8222705b07af92c9de8911/51797089204.pdfIn PDF document text
    • http://caratow.eu/userfiles/file/99611229313.pdfIn PDF document text
    • https://www.herewardcarpets.co.uk/wp-content/plugins/super-forms/uploads/php/files/ojr5lbr5op1kegjnvlpp5sda41/33657796734.pdfIn PDF document text
    • https://www.conkite.com/wp-content/plugins/super-forms/uploads/php/files/2ecceac2a2629c0b5170dfdda20386e1/16279625084.pdfIn PDF document text
    • https://www.sir.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/1606c8a7d28dc5---45258271415.pdfIn PDF document text
    • http://rilta.net/userfiles/files/zenete.pdfIn PDF document text
    • https://metricgroup.it/uploads/file/66285026827.pdfIn PDF document text
    • http://sivam.pl/files/file/18349116442.pdfIn PDF document text
    • http://amadpich.com/userfiles/file/ladikek.pdfIn PDF document text
    • http://bbfederico2.net/userfiles/file/rowakitema.pdfIn PDF document text
    • http://gesundezellen.de/neu/userfiles/file/bofawoz.pdfIn PDF document text
    • https://akanaymatbaa.com/calisma2/files/uploads/fotedipifutetulesegurod.pdfIn PDF document text
    • https://riverasphotovideo.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607b7c9bea88a---buranofusedujopobojo.pdfIn PDF document text
    • http://phillipwhiting.com/wp-content/plugins/formcraft/file-upload/server/content/files/160834528e9207---sagugerizexela.pdfIn PDF document text
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/DOqCt-cVA4I/uplcv?utm_term=janelle+monae+and+miguelPDF 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_off0000c86e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC86E 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off0000e085.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE085 10316 bytes
SHA-256: 0f4b7475f48312c3a44f1155abc1584554ff80f7a698013677bb89e58a2e62c8
font_02_sfnt_off0000f772.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF772 17600 bytes
SHA-256: ff0f784ed2fb4a6873b5422788c1335ca6e20b2602ed935805cc8706b574acc7

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