Malicious PDF — malware analysis report

Static analysis result for SHA-256 0d20ecd408310e8b…

MALICIOUS

PDF

76.5 KB Created: 2021-06-13 03:24:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-23
MD5: 4c3874e70282a8435c91a63593646dc2 SHA-1: 8fea8a93a3755745e25abe774c0578b86fc4d396 SHA-256: 0d20ecd408310e8bfaae53f03c64b4300b73d66bbbb1ba401250157776d7a5ce
196 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF document is classified as malicious, exhibiting characteristics of a phishing lure. It contains numerous links to external websites, many hosted on compromised WordPress installations or disposable domains, suggesting an attempt to redirect users to malicious content. The presence of 'utm_term' parameters in some URLs indicates a potential SEO-based lure to attract victims searching for movie-related content. No scripts were extracted, but the overall structure and URL patterns strongly suggest a phishing or malware distribution campaign.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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
  • LOLBin token sequence in document text high SE_LOLBIN_RUN_COMMAND
    Extracted document text contains a Windows script/execution tool name (PowerShell, mshta, cmd, rundll32, regsvr32, …) within 220 characters of a dangerous flag, command verb, or URL. This is a visible 'run this' instruction in HTML/PDF/RTF lure bodies, or — in macro-laden Office files — the macro's own string-pool entries appearing adjacent in extracted text.
  • 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://crewmak.ru/uplcv?utm_term=aaradugula+bullet+movie+online+movierulz PDF link annotation
    • http://www.canadiantreasurer.com/wp-content/plugins/formcraft/file-upload/server/content/files/16090ba74d9669---lalanefumosasiniza.pdfIn PDF document text
    • http://jrmhandling.nl/upload/file/jazug.pdfIn PDF document text
    • https://advancedbusiness.co/wp-content/plugins/super-forms/uploads/php/files/6f479d7b89f93ae6a8063edc84099204/12811256237.pdfIn PDF document text
    • https://alarrabnews.com/images/content/content/file/nabuf.pdfIn PDF document text
    • https://motionslam.com/wp-content/plugins/super-forms/uploads/php/files/955bbf96e6f7595904f25adaf079257c/dekapovimapegipibu.pdfIn PDF document text
    • https://vickers-electronics.co.uk/wp-content/plugins/super-forms/uploads/php/files/31a7554a5ae48bce4c5c619b6b8c9460/pibikonu.pdfIn PDF document text
    • https://zapcdn.space/web/img/podborky/files/28025318220.pdfIn PDF document text
    • https://regalcabs.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/16082a14e54971---busikosupebisak.pdfIn PDF document text
    • https://liniagdanskzydowo.pl/files/fukaj.pdfIn PDF document text
    • https://homeaestheticsllc.com/wp-content/plugins/super-forms/uploads/php/files/d07e02974d03546c66c2381197c1b9ea/xewuziladewizuleful.pdfIn PDF document text
    • https://www.quatainvestimentos.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160aba871a9d8d---mimabu.pdfIn PDF document text
    • https://swimproject.eu/wp-content/plugins/super-forms/uploads/php/files/59e5b3e928bd16616c12ab0e9971df2b/37201192986.pdfIn PDF document text
    • https://yourtuscanyguide.com/wp-content/plugins/super-forms/uploads/php/files/174849t2f45hvv3ssgj8fnjqh5/dakigolufivepinivukinisem.pdfIn PDF document text
    • https://cor.org.ar/wp-content/plugins/super-forms/uploads/php/files/njj9k1m2dg1v0cmd3bk0enqlet/valovurenewa.pdfIn PDF document text
    • https://urbanplace.me/wp-content/plugins/super-forms/uploads/php/files/a64f03992fb89743aedd967b1a4e8c3e/35412034636.pdfIn PDF document text
    • http://dodici12.ru/wp-content/plugins/super-forms/uploads/php/files/ihjjlib1svtbh9644po9o7vo47/sosutediwuzowodupunoz.pdfIn PDF document text
    • https://thehamptonsbloomington.com/wp-content/plugins/formcraft/file-upload/server/content/files/16076e209ed77c---gulezotodifafagugugax.pdfIn PDF document text
    • https://urbanplace.me/wp-contIn macro / runtime command snippet
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn 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://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ee59.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEE59 5204 bytes
SHA-256: 60abf8eec0d59b8a8cdb5d9f518a9e5557b36940b824a5d802a755f2ea35ce85
font_01_sfnt_off00010004.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10004 10848 bytes
SHA-256: 76741b71c53798f3be497b84ea9b6421d89bfe9a5dabae53c9f9cf8b0389237f

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