Malicious PDF — malware analysis report

Static analysis result for SHA-256 a74a6f5d39a3ff34…

MALICIOUS

PDF

139.6 KB Created: 2021-06-13 08:57:42 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-11
MD5: 43db8582b968b74a0ec089a4cbeae3db SHA-1: b10ee8fef151dcb25689b175927c3706b8f8f3f0 SHA-256: a74a6f5d39a3ff345e98d873a0cc9a8dc3cbd4a81dee681c37b4e75784917671
156 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF document contains numerous links to external websites, many of which appear to be compromised WordPress installations used for hosting malicious files. The presence of a 'kabir singh download 720p' lure suggests a phishing attempt to trick users into downloading potentially harmful content. ClamAV and ML classifiers strongly indicate malicious intent, classifying it as a phishing trojan.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 6

  • 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.
  • 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=kabir+singh+download+720p PDF link annotation
    • https://seataclightingalaska.com/wp-content/plugins/super-forms/uploads/php/files/0e2fd5a18aade4f6ae9ef5ef21a175f2/jataponuzixeli.pdfIn PDF document text
    • https://limpjet.com.br/wp-content/plugins/super-forms/uploads/php/files/8febadd6c79b35eed3587b4e448df88d/19792663433.pdfIn PDF document text
    • https://mfdesign.hu/files/file/nopipogor.pdfIn PDF document text
    • https://ludifrance.fr/userfiles/file/42066647381.pdfIn PDF document text
    • http://iziusb.com/userfiles//file/dijojezurafozavesevuku.pdfIn PDF document text
    • https://thehamptonsbloomington.com/wp-content/plugins/formcraft/file-upload/server/content/files/160929d2fac96d---15687531988.pdfIn PDF document text
    • http://zap-interactive.com/uploads/files/pulufebavimi.pdfIn PDF document text
    • http://adabaskimerkezi.com/upload/file/16619772579.pdfIn PDF document text
    • http://inlikeflintlogistics.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ac095d3be38---madul.pdfIn PDF document text
    • http://ontheedgeofnow.com/wp-content/plugins/formcraft/file-upload/server/content/files/160adb081aeeaf---lomopirinixusabifijatoda.pdfIn PDF document text
    • https://monacollection.ua/wp-content/plugins/super-forms/uploads/php/files/846d95baabbd063c6b816f3eff8f0c5c/88276150337.pdfIn PDF document text
    • http://ecohost.ru/pics/images/file/92507274870.pdfIn PDF document text
    • https://www.reliancecareuk.com/wp-content/plugins/super-forms/uploads/php/files/f833491c08df740ff342e461d13ca27f/50060495711.pdfIn PDF document text
    • http://aliceinformaticasrl.com/user/pages/50360569224.pdfIn PDF document text
    • http://irmascaritasdejesus.org.br/wp-content/plugins/formcraft/file-upload/server/content/files/160c2f3adf143d---pozulipafopiseraw.pdfIn PDF document text
    • http://omgmediatank.com/userfiles/files/zubifewewuvinirilenopi.pdfIn PDF document text
    • http://brodart01.com/wp-content/plugins/super-forms/uploads/php/files/8nv1hd1as8k24rt17b986gut18/wesoza.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.fontrix.comhttp://www.nhncorp.comIn 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
    • http://sinhala.sourceforge.net/In PDF document text
    • http://sinhala.cvs.sourceforge.net/viewvc/*checkout*/sinhala/sinhala/fonts/CREDITSIn PDF document text
    • http://www.gnu.org/licenses/gpl-2.0.htmlIn PDF document text
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 5

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00013749.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13749 5776 bytes
SHA-256: c299990bcbfbacc9a78cf35aca3a3038a01e6d9294a70ec3bb64dca15b04e759
font_01_sfnt_off00014ac3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x14AC3 73404 bytes
SHA-256: 956f774c904f0a3480c8483529e58e878338e1ba9460a802bd673643e5fafb3b
font_02_sfnt_off0001db71.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1DB71 10856 bytes
SHA-256: 53ce3b74bcef0ce9f081a553b51a245093fc8984f1b616b2a004b83158c77c3f
font_03_sfnt_off000200af.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x200AF 16444 bytes
SHA-256: f38efc7a042f74e3d3a629eca4611aaa5c1f95ea4aa8ac3550aee374859b4c0f
font_04_sfnt_off000216e3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x216E3 2056 bytes
SHA-256: 7be423a9975dd74696fa28cd46b52a55c3739f4a885228df3b07ea410fd2731b

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