Malicious PDF — malware analysis report

Static analysis result for SHA-256 2e5a05216a004490…

MALICIOUS

PDF

95.2 KB Created: 2021-07-06 05:43:45 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-09-15
MD5: 044592b700b93b62f18c7cf6236717f2 SHA-1: 92e7bad944e279bba6073401512abdb3439af66a SHA-256: 2e5a05216a0044908507b08ca653b82514d8ad1033ffccb6054d2bf0f2515bfc
156 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of links, many pointing to compromised WordPress sites, suggesting it's designed to redirect users to malicious content. The ClamAV detection and ML classifier strongly indicate malicious intent, likely phishing or malware distribution. Although no scripts were explicitly extracted, the PDF structure and link farm behavior are indicative of malicious redirection tactics.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9820

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 http://trainternational.in/wp-content/plugins/formcraft/file-upload/server/content/files/1608ac77d81590---barawuvejafe.pdf In PDF document text
    • https://sasalidayanisma.org/uploads/file/96252169213.pdfIn PDF document text
    • https://allianceflooring.net/wp-content/plugins/super-forms/uploads/php/files/9c6dd277b45cdfbd52e08b1f2063fe69/pajinabin.pdfIn PDF document text
    • https://parisautotravel.com/wp-content/plugins/super-forms/uploads/php/files/u1eu7bao134k92q22aev7neti3/xurivufanubazamoponutus.pdfIn PDF document text
    • http://wearefamilypalestine.com/clients/3/3b/3bc38fc23f9ffb54b20226cbd6ad6ce3/File/buloxorirejatixiledos.pdfIn PDF document text
    • http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a2b683de141---89523800320.pdfIn PDF document text
    • http://www.vandiestbrandstoffen.be/uploads/files/2428946156.pdfIn PDF document text
    • http://www.consorcio.edu.pe/wp-content/plugins/formcraft/file-upload/server/content/files/160964fbae0eee---15260937560.pdfIn PDF document text
    • https://theemperorsoldclothes.co.uk/wp-content/plugins/super-forms/uploads/php/files/ifjtv8eg3o86e9v0g6t0q4eupo/89763269384.pdfIn PDF document text
    • https://www.ideaklinikankara.com/wp-content/plugins/formcraft/file-upload/server/content/files/16073062980444---zixiranemejinozinuvavo.pdfIn PDF document text
    • https://elicopter-de-inchiriat.ro/wp-content/plugins/formcraft/file-upload/server/content/files/16094721caf5a0---metukevitepire.pdfIn PDF document text
    • http://travisreunion.com/clients/1/1d/1d9c560ef9ee6310b862f4c9d288d7bd/File/xezijijuwuxebumuz.pdfIn PDF document text
    • https://lastcallslc.com/wp-content/plugins/super-forms/uploads/php/files/e55892b0fbb55a68fc622aa4e7fce8a7/19493514902.pdfIn PDF document text
    • https://www.traveltimevipp.com/wp-content/plugins/super-forms/uploads/php/files/080e73f6ff7aea6a8f918a7c503b1737/49109113368.pdfIn PDF document text
    • https://bem-sa.com/img/file/25087727370.pdfIn PDF document text
    • https://marcuspietrek.de/MARCUS/files/file/93436274052.pdfIn PDF document text
    • http://almar-bus.pl/userfiles/file/87848517273.pdfIn PDF document text
    • http://bigcool.net/webroot/img/files/29434351994.pdfIn PDF document text
    • http://juniorsmagazine.com/wp-content/plugins/formcraft/file-upload/server/content/files/16097008ed0caa---faxokurowozetovilikafapi.pdfIn PDF document text
    • http://www.immiflex.com/wp-content/plugins/formcraft/file-upload/server/content/files/160896e4327b35---xetunapusu.pdfIn PDF document text
    • https://cedarcreeksauce.com/wp-content/plugins/super-forms/uploads/php/files/8a3550d65189cd26afc2a86343102490/sabamin.pdfIn PDF document text
    • https://amkboiler.com/wp-content/plugins/super-forms/uploads/php/files/9mdqp6ggh857cjvinr496rplit/xesimijipoxux.pdfIn PDF document text
    • https://agrilaui.com/userfiles/file/voxazo.pdfIn PDF document text
    • https://rffsev.ru/wp-content/plugins/super-forms/uploads/php/files/3fb98d53411ceb3e7f1f4847205a1516/bogedijokitisenobanuwo.pdfIn PDF document text
    • https://takeorders.online/wp-content/plugins/super-forms/uploads/php/files/dtddo01h9vp3eo0nop727480b6/fadapebelexudetomexuxutus.pdfIn PDF document text
    • http://andreagarciam.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609adb3eda877---jixafaloxakaxerizinime.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Uplcv/~3/1KS0DP0cxss/uplcv?utm_term=small+squash+that+looks+like+butternutPDF 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

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000111d3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x111D3 10928 bytes
SHA-256: 7de99497e9859d20b42f98b702e258ba81be9b87e96877af1748f630d7b9e3e6
font_01_sfnt_off00012ae8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12AE8 16984 bytes
SHA-256: 80a1ad23505a665fa6d2caf04ac1c69f3b8721b19bed027a93a21d462c6c3a7c
font_02_sfnt_off0001575c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1575C 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1

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