Malicious PDF — malware analysis report

Static analysis result for SHA-256 96a93d486ddcb281…

MALICIOUS

PDF

86.0 KB Created: 2021-08-20 04:25:34 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-16
MD5: 3b703911bbe810a6e957628264dc348e SHA-1: d4ebeaffebba4639bc631e080a43fcd9dd1f9203 SHA-256: 96a93d486ddcb2816bf7791f1d6d38b0de9c8902d8f0b7699268e9dfffe09527
164 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains embedded JavaScript and a link farm pointing to compromised websites, suggesting an attempt to redirect users to malicious content. The presence of SEO-optimized keywords in one URL indicates a lure for potentially unwanted downloads. ClamAV detection and ML classification strongly indicate malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9957

Heuristics 7

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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.
  • Embedded JS stream low PDF_JS
    PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
  • 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://drafthe.ru/uplcv?utm_term=monster+jam+steel+titans+2+cheats+nintendo+switch PDF link annotation
    • http://ifaistos.reality.gr/~triantaf/images/file/mitifojedafanolu.pdfIn PDF document text
    • http://www2.grupoksl.com.br/js/ckfinder/userfiles/files/749807628.pdfIn PDF document text
    • http://makaifruits.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608499d1acfdf---majododa.pdfIn PDF document text
    • http://cedresarquitectura.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607929ff1479e---15207973549.pdfIn PDF document text
    • http://www.hcc-cpas.com/siteuploads/editorimg/file/45838125918.pdfIn PDF document text
    • http://anapharmata.hu/ckfinder/core/connector/php/files/30455346228.pdfIn PDF document text
    • http://e68momo.com/shopadmin/upload/files/26770724730.pdfIn PDF document text
    • http://skipjackpoke.com/ckfinder/userfiles/files/65590446758.pdfIn PDF document text
    • http://ebslang.net/_UploadFile/Images/file/zogolinawemude.pdfIn PDF document text
    • https://www.burnat-provins.ch/ck/ckfinder/userfiles/files/faxijegexuvetelitosegede.pdfIn PDF document text
    • http://gsoam.ge/wp-content/plugins/formcraft/file-upload/server/content/files/16111ce41e8258---gesixaju.pdfIn PDF document text
    • https://ewms.vn/wp-content/plugins/super-forms/uploads/php/files/m8f2n497pm9ce49qrp8o8bfgu1/majawesafut.pdfIn PDF document text
    • http://bowenworktimmins.com/clients/e/ed/ed750a77e36579213b976c45729ba45c/File/14104294596.pdfIn PDF document text
    • https://www.ideaklinikbursa.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606f20783fa8a---tofikomebubuzotub.pdfIn PDF document text
    • https://www.penyembuhanholistikreiki.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609d551dd9e50---liwejobotusam.pdfIn PDF document text
    • https://maxim-catering.de/wp-content/plugins/super-forms/uploads/php/files/fcd6i7hgavmdc9euns9tjba44h/vajixukejerifaren.pdfIn PDF document text
    • http://strahovka66.ru/userfiles/file/pepobukegezipo.pdfIn PDF document text
    • http://musiclivemarsala.com/userfiles/files/mebotewejowu.pdfIn PDF document text
    • https://eclipsetheaters.com/wp-content/plugins/formcraft/file-upload/server/content/files/160788d1b60174---pakekajunu.pdfIn PDF document text
    • http://www.sunarpazarlama.com/wp-content/plugins/super-forms/uploads/php/files/1v5ser3op2taoomkbp0jl0o7v5/95144246279.pdfIn PDF document text
    • http://www.risingstars.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/1607dbcd42b8d8---76590721662.pdfIn PDF document text
    • http://www.cuadernos.in/wp-content/plugins/formcraft/file-upload/server/content/files/160b5e6ea900fc---xivunobetufufogeme.pdfIn PDF document text
    • https://www.fecomerciomg.org.br/wp-content/plugins/formcraft/file-upload/server/content/files/1609b33cd964d4---53230943470.pdfIn PDF document text
    • https://www.cdscabling.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/1608532d46cefa---misovumifizoxuwe.pdfIn PDF document text
    • https://www.energetisch-therapeut-estie.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1607a371060a98---38146730412.pdfIn PDF document text
    • http://inlikeflintlogistics.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c1c0daeba4d---57163464175.pdfIn 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://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_off0000e140.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE140 10964 bytes
SHA-256: f294ef269a985aebb26ce728ccc1b6bdd74f7ff638f60611d45ccb0b0924f97c
font_01_sfnt_off0000fa97.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFA97 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off000112a9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x112A9 21948 bytes
SHA-256: e23c6ff00d79300de9c895d3b66e2a1a4a23c17861974ca94a91f243fb34e844

Open this report in the interactive analyzer, or submit your own file for analysis.