Malicious PDF — malware analysis report

Static analysis result for SHA-256 64ef519887931d49…

MALICIOUS

PDF

89.0 KB Created: 2021-06-21 10:41:58 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-12
MD5: ae3d62956fe488504cb61187fedb092f SHA-1: 8bf5ff6e0dc6000981c32282c5809cd468070820 SHA-256: 64ef519887931d49ac658e6d11c8bb3b72c1cb78a560b26e3fd20d7d10cd350e
156 Risk Score

Malware Insights

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

The PDF document contains numerous links to external websites, many of which appear to be part of link farms hosted on compromised or disposable domains. The presence of a 'titanic full movie' lure suggests a phishing or malware distribution attempt. ClamAV detection and ML classification strongly indicate malicious intent, likely for distributing further payloads or conducting phishing operations.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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://pixomot.ru/uplcv?utm_term=titanic+full+movie+with+english+subtitles PDF link annotation
    • http://merrygoldholidays.com/ckfinder/userfiles/files/68297095695.pdfIn PDF document text
    • http://kurskodkb.ru/page_edit/_samples/userfiles/files/jofafipaw.pdfIn PDF document text
    • https://amezdigital.com/wp-content/plugins/super-forms/uploads/php/files/9ad5e2925b6438c151292da7f0dd0275/pumudata.pdfIn PDF document text
    • http://hum-lucknow.org/test/fckeditor/file/zeratuvutow.pdfIn PDF document text
    • http://www.bestlifepolicy.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/1608c3dfae8bc2---74190580387.pdfIn PDF document text
    • http://alpanelektrik.com/depo/sayfaresim/file/41619046887.pdfIn PDF document text
    • http://www.danvillern.com/wp-content/plugins/super-forms/uploads/php/files/6nvp5c55vu4efup5gvard8kpo1/faparozitujiwotadugif.pdfIn PDF document text
    • https://ckmusicdesign.nl/userfiles/file/fesovanu.pdfIn PDF document text
    • https://1sis.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b9b88446b9d---50137581249.pdfIn PDF document text
    • https://tecsal.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160a1b6b00153f---65702238882.pdfIn PDF document text
    • https://viajespereira.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a4e2ecbadd3---27242270283.pdfIn PDF document text
    • https://cashmeredreams.com/wp-content/plugins/super-forms/uploads/php/files/2823cac5db8f8be0fcc502f4f6d17c2c/zavukapejitofe.pdfIn PDF document text
    • http://www.nowsingapore.co.id/wp-content/plugins/formcraft/file-upload/server/content/files/16072277d3d47e---wukalidetawudedefe.pdfIn PDF document text
    • https://www.lumisolar.pe/wp-content/plugins/formcraft/file-upload/server/content/files/1607f3b806af2e---48912535739.pdfIn PDF document text
    • https://lawyerupsmart.com/tempimg/file/94673214067.pdfIn PDF document text
    • https://www.traveltimevipp.com/wp-content/plugins/super-forms/uploads/php/files/583f56e7f71053bb50007a9e7b88b158/misofevanososiwuxubovum.pdfIn PDF document text
    • http://funperm.ru/content/file/15746537237.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f89f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF89F 2988 bytes
SHA-256: 49d08c9dabb58d6e888314469d8a0d64a988e73f3a7160e8662ab200b1e53c85
font_01_sfnt_off00010350.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10350 5440 bytes
SHA-256: cd65f505261fb5253e0a2faa0a25386ebe3deceb6c5f182d88b00357b54dacce
font_02_sfnt_off000115cf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x115CF 12056 bytes
SHA-256: 74947d74a6d7bbfb448b63012042b761db158b0674765a5c1483ef039db769a8
font_03_sfnt_off00013e49.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13E49 16344 bytes
SHA-256: d0fb5fce634c5ae045d9d51b53efdaafa0e493a21a7fb7894ae1efe0f71839ed

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