Malicious PDF — malware analysis report

Static analysis result for SHA-256 7c154ba3199f4463…

MALICIOUS

PDF

76.8 KB Created: 2021-07-01 00:11:29 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-05
MD5: f9a2c739606e036986bcf6c09def0b0e SHA-1: 4fe8edeb5241a5cbcc03e58a4482612ad7af69cf SHA-256: 7c154ba3199f4463fbbf86c18b25a9515309a26c4975a9148291f82a263270aa
196 Risk Score

Malware Insights

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

The PDF document contains a social engineering lure that prompts the user to install a browser extension or update, a common tactic for credential theft or malware delivery. ML classifiers and ClamAV detections strongly indicate malicious intent. While no scripts were directly extracted, the PDF structure and embedded URLs suggest it is designed to lead the user to malicious content, potentially leveraging JavaScript for execution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

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
  • Browser extension / update installation lure high SE_BROWSER_INSTALL_LURE
    Document tells the user to install a browser extension, plugin, viewer, or browser update to view content — a common social-engineering path for credential theft and malware installation
  • 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://dmddsgn.com/wp-content/plugins/super-forms/uploads/php/files/1856ba84516e138c60687ac98617f0f6/javexemebe.pdf In PDF document text
    • http://dietaltop.com/userfiles/files/79340816742.pdfIn PDF document text
    • http://agiusfuneraldirectors.com/files/file/belulum.pdfIn PDF document text
    • http://www.siphonicflowmandiri.com/upload/files/pituzunumonowazizulana.pdfIn PDF document text
    • http://pebyte.com/wp-content/plugins/super-forms/uploads/php/files/35m2nkqagshhbg2n2mlm0ks0su/16638996773.pdfIn PDF document text
    • http://trendymamy.pl/userfiles/file/pijibowurobaziderasil.pdfIn PDF document text
    • http://iltorg.ru/upload/file/87327248361.pdfIn PDF document text
    • https://www.frontierexim.com/wp-content/plugins/super-forms/uploads/php/files/mmnno6eg85qeq52dir7if9hvff/nuloruni.pdfIn PDF document text
    • http://aiswaryamatrimonials.com/fck_uploads/file/96098904416.pdfIn PDF document text
    • https://sedefartphotography.com/resimler/files/51795494127.pdfIn PDF document text
    • https://go2germany.ru/files/file/xasujozalalode.pdfIn PDF document text
    • https://www.latentoac.com/portal/wp-content/plugins/super-forms/uploads/php/files/o52i6iqi17nuk3aq0ld6a5q65r/virebofi.pdfIn PDF document text
    • https://www.mysmilestudios.com/wp-content/plugins/super-forms/uploads/php/files/d71a00e2e11a418d6a178d5e8963c6ea/93475110314.pdfIn PDF document text
    • http://www.movingintofreedom.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607ee47284ba3---80612696881.pdfIn PDF document text
    • https://www.hamburgeriaagricola.com/wp-content/plugins/super-forms/uploads/php/files/pal92jnvn57r2jruhkf84uvlin/40796170290.pdfIn PDF document text
    • http://www.mmalappeenranta.com/tiedostot/files/86198585333.pdfIn PDF document text
    • http://elitvorota.ru/f/file/21487389012.pdfIn PDF document text
    • http://jechtinger-wein.com/jechtingen/files/97197295124.pdfIn PDF document text
    • http://pvsystreports.com/wp-content/plugins/super-forms/uploads/php/files/69nccisellccs29raq9qeb62k0/31890552452.pdfIn PDF document text
    • http://xn--h49al33a2zdp0eo1x.com/DATA/file/20210619011014.pdfIn PDF document text
    • http://automsystem.com/UploadFile/file/20210607143349206.pdfIn PDF document text
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/fzgW7-mxBc0/uplcv?utm_term=toni+braxton+songs+download+mp3lioPDF 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_off0000c75d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC75D 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off0000df6f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDF6F 17176 bytes
SHA-256: db30559ba87f9d524cf5dbd329241b171c4241d97f2ab381b1695511e2adfd9d
font_02_sfnt_off00010c7c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10C7C 11064 bytes
SHA-256: 63025129a14ee9ea32acdfbad82fac56a5b7c2949f4da28a14cb141d34978b9f

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