Malicious PDF — malware analysis report

Static analysis result for SHA-256 e9c4660284c2ab60…

MALICIOUS

PDF

77.2 KB Created: 2021-06-09 17:06:55 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-27
MD5: 42647b723c22fd93c34c7d81d637d3b9 SHA-1: 19c6e9bda5d3279b47e2ca6c10979d079c7c4147 SHA-256: e9c4660284c2ab600a0559a8b8edf278dc46bc4dcc0fb79b4a22cbf2fdbda4c8
156 Risk Score

Malware Insights

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

This PDF document is identified as malicious by ML classifiers and ClamAV, indicating a phishing or trojan threat. It contains numerous links, many hosted on compromised WordPress sites, directing users to download files. The primary lure appears to be a 'sniper 3d hacked version free download 2020', suggesting a social engineering tactic to trick users into downloading malware. No scripts were extracted, but the presence of multiple external URIs and the link farm structure strongly suggest a downloader or phishing campaign.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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://garglob.ru/uplcv?utm_term=sniper+3d+hacked+version+free+download+2020 PDF link annotation
    • http://esistore.be/userfiles/file/83344252453.pdfIn PDF document text
    • https://holzhaus-suedtirol.it/wp-content/plugins/formcraft/file-upload/server/content/files/1606c73dd7c662---62505435567.pdfIn PDF document text
    • http://industrialdevices.in/uploads/73224512824.pdfIn PDF document text
    • http://grani-tonkogo-mira.ru/wp-content/plugins/super-forms/uploads/php/files/9e3c2c3989d11fbad4dcdc2c4c9e2f26/girajajekoreme.pdfIn PDF document text
    • https://alllegaltask.com/wp-content/plugins/super-forms/uploads/php/files/sb7n1efg5plfc85uo7lalv1keo/22727035300.pdfIn PDF document text
    • https://amezdigital.com/wp-content/plugins/super-forms/uploads/php/files/59c074f38fad3b38c91a17a3e47f6b2a/18726542493.pdfIn PDF document text
    • https://thai-airpark.com/ckfinder/userfiles/files/27401683945.pdfIn PDF document text
    • http://uat.ideadunes.com/projects/ideadunes-portfolio-site/wp-content/plugins/formcraft/file-upload/server/content/files/1607a912f7ac4b---kurom.pdfIn PDF document text
    • http://entone.es/wp-content/plugins/super-forms/uploads/php/files/ae54f9314d95ef50cdce693a13d7bb57/xamusagufarodofodiwoloren.pdfIn PDF document text
    • https://www.hit-education.com/wp-content/plugins/super-forms/uploads/php/files/84v81h5jj2e3mgvp588a7gjl1c/xupuv.pdfIn PDF document text
    • http://www.johnknox.ch/wp-content/plugins/formcraft/file-upload/server/content/files/16072f2ecf00e9---saxigegapalija.pdfIn PDF document text
    • http://www.driftime.ee/wp-content/plugins/formcraft/file-upload/server/content/files/1607a0b7548923---xumot.pdfIn PDF document text
    • http://www.annaleehuber.com/content_files/file/xomapafedawabo.pdfIn PDF document text
    • http://alkanboya.com/files/file/%5C/kotatik.pdfIn PDF document text
    • http://www.thebetterinsurance.com/wp-content/plugins/formcraft/file-upload/server/content/files/16086fc2c4b434---wafokusukota.pdfIn PDF document text
    • https://lawpropertyconsultants.co.uk/wp-content/plugins/super-forms/uploads/php/files/4v7lb4vkseg42ourtdeo3fhlk5/vebopakekojetemixebewa.pdfIn PDF document text
    • https://harpethvalleypto.org/wp-content/plugins/super-forms/uploads/php/files/b592939f67221b6a333d50e9449a724e/nonadelozovamewojinabir.pdfIn PDF document text
    • 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_off0000ea29.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEA29 6000 bytes
SHA-256: 1dff87ea7dfb75a22a680d8eddb2e77270e63a67e8cc662a91f88e044be76e81
font_01_sfnt_off0000fea9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFEA9 12096 bytes
SHA-256: c4e370eb309786665236c9c4dad632380535001914dcc4a4bd25f6453a22322f