Malicious PDF — malware analysis report

Static analysis result for SHA-256 7c0de14c8447c72c…

MALICIOUS

PDF

105.1 KB Created: 2021-07-22 01:04:18 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-09-14
MD5: 9d0d9f68a23ba280e21b9777789c207f SHA-1: 0b3548aee78b6de93cf183247ef62494a2d31b0c SHA-256: 7c0de14c8447c72c5440c6ff93301638288c4bf1564389c4a794215c3672eb76
156 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file was identified as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It functions as a link farm, with numerous embedded URLs pointing to external sites, some of which are hosted on compromised CMS platforms. While no scripts were explicitly extracted, the PDF structure and the nature of the URLs suggest it is designed to lure users to malicious content, potentially for phishing or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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://www.deco-interieure.com/userfiles/file/kenofaxojifivigofoki.pdf In PDF document text
    • http://vivatbacchus.hu/files/file/42115968894.pdfIn PDF document text
    • https://condominiovillage.com/userfiles/file/dotide.pdfIn PDF document text
    • http://placc.info/up_image/mirepebar.pdfIn PDF document text
    • https://fzclicks.com/demo/files/editor/file/favuselozoramomug.pdfIn PDF document text
    • https://agsposure.org/wp-content/plugins/super-forms/uploads/php/files/6c18a5872fb70337da146ebdc877fc7d/vuwetedixo.pdfIn PDF document text
    • http://www.publicitymailing.ie/wp-content/plugins/formcraft/file-upload/server/content/files/1609d33bd10c37---60127457114.pdfIn PDF document text
    • http://xn--or3bi2da319p.com/upload/fckeditor/file/lexobipa.pdfIn PDF document text
    • http://kpotplace.com/uploads/files/bakudamofusumepojad.pdfIn PDF document text
    • http://abacusnancy.com/userfiles/file/xuvalutipuduvasono.pdfIn PDF document text
    • http://piemonteforyou.it/userfiles/file/binivefititutefurafedox.pdfIn PDF document text
    • http://xn----8sbpvg0afdbe.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/jjs86v03lut3qqf9ih6lf7r1u6/55436636436.pdfIn PDF document text
    • https://medgarlci.com/wp-content/plugins/super-forms/uploads/php/files/567d1ed159edd06e305997ce9192d9d9/fixifivixejemigipa.pdfIn PDF document text
    • http://primethailand.com/ckfinder/userfiles/files/17934500791.pdfIn PDF document text
    • https://capecoralliving.com/media/file/mivizufisixi.pdfIn PDF document text
    • http://clearlakesd.org/wp-content/plugins/formcraft/file-upload/server/content/files/1607901114f8e1---vinedakolixenedaboropanin.pdfIn PDF document text
    • http://www.benvenutialmare.com/wp-content/plugins/formcraft/file-upload/server/content/files/16090074f4b33d---zorixubururizepo.pdfIn PDF document text
    • http://audiomaster.se/wp-content/plugins/formcraft/file-upload/server/content/files/1609a99efa740b---59891230894.pdfIn PDF document text
    • http://sfera-vlad.ru/img/file/jofaguxetimi.pdfIn PDF document text
    • http://akcjonariusz.com/UserFiles/file/rugawu.pdfIn PDF document text
    • http://jrpst.pl/userfiles/file/jefibinekagevupigor.pdfIn PDF document text
    • http://garystrike.com/clients/3/30/301ae0ed988f9237e4cb8f8c41f6cb36/File/23665146386.pdfIn PDF document text
    • http://www.videobezopasnost.ru/ckfinder/userfiles/files/82612709969.pdfIn PDF document text
    • https://feedproxy.google.com/~r/skout/mBVl/~3/1KS0DP0cxss/uplcv?utm_term=wear+the+full+armour+of+godPDF 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_off00013af1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13AF1 10528 bytes
SHA-256: bcb7f83e1da5ded81308e07d5ca640c641ddd4cae6db13c8718832eb8922debf
font_01_sfnt_off000152ba.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x152BA 16632 bytes
SHA-256: 0cb25130b2210239db4d3f3ce750e0eb715bd74f2e9499801e98e7185ec5ae24
font_02_sfnt_off00017d92.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x17D92 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1

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