Malicious PDF — malware analysis report

Static analysis result for SHA-256 363bacbad09d849a…

MALICIOUS

PDF

82.2 KB Created: 2021-06-18 00:29:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-23
MD5: 7ceddf43077ef201d8deced602bd34fe SHA-1: 27cd86da0f12cd2186b75a25281dcfc83c4834ad SHA-256: 363bacbad09d849ae4f198648638f666da585bfef4989fe0e5cf68f3864f76a0
156 Risk Score

Malware Insights

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

The PDF contains numerous links to external websites, many of which are hosted on compromised WordPress installations, suggesting a link farm for SEO poisoning or phishing. The presence of 'Aquaman full movie putlockers' in the document body and associated URLs indicates a lure to illicit content. ClamAV detection and ML classification confirm the malicious nature of the PDF.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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://cructi.ru/uplcv?utm_term=aquaman+full+movie+putlockers PDF link annotation
    • http://www.colegiometa.net/home/wp-content/plugins/formcraft/file-upload/server/content/files/160ab71bc69ed4---jexigebutuwapukegemozexi.pdfIn PDF document text
    • https://vmkstroi.ru/wp-content/plugins/super-forms/uploads/php/files/3dc24795bcf04e83abea5dd7eb5c2a5f/kekoranibat.pdfIn PDF document text
    • https://didacostruzioni.it/userfiles/file/71620509811.pdfIn PDF document text
    • https://tuabogadoangel.com/wp-content/plugins/super-forms/uploads/php/files/6f9b3f3f4c92d1d2ea32f0f3719b02d4/35922767001.pdfIn PDF document text
    • http://vincityhomes.vn/wp-content/plugins/super-forms/uploads/php/files/m50d7maq5api1o5bcvrpeqp24o/xeresatudadazofazen.pdfIn PDF document text
    • https://chaplains-camps.org/upload_picture/file/12259178083.pdfIn PDF document text
    • http://amindoost.ir/images/upload/files/74700430883.pdfIn PDF document text
    • https://glbtrader.com/userfiles/file/pafemasifomuruw.pdfIn PDF document text
    • http://sushiloverca.com/uploads/files/53032313182.pdfIn PDF document text
    • http://www.kissdocs.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/160a57e9c262c0---wewaxubisux.pdfIn PDF document text
    • https://wecafephuket.com/wp-content/plugins/super-forms/uploads/php/files/9tuoetts2070vo5e5s066pegic/38608114289.pdfIn PDF document text
    • http://falerisztika.hu/tmp/93489132664.pdfIn PDF document text
    • https://www.temsilcisitesi.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b8b31c88e42---vilobodesev.pdfIn PDF document text
    • http://phenix-security.fr/wp-content/plugins/formcraft/file-upload/server/content/files/16095eee7ae1c7---vozexesakipokizajugad.pdfIn PDF document text
    • https://connect.allianceflooring.net/wp-content/plugins/super-forms/uploads/php/files/24cb57f875e2f05687ea9d2537986292/ketofekilibanoxewebufod.pdfIn PDF document text
    • https://vizzzio.ru/wp-content/plugins/super-forms/uploads/php/files/06d25ec073ca5678b081b1b46144adbe/74735946412.pdfIn PDF document text
    • https://www.clubmanizales.com.co/wp-content/plugins/formcraft/file-upload/server/content/files/1608624afd59a4---terisokadokanefigefi.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 5

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d02f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD02F 3620 bytes
SHA-256: 232d16cd2291b1984b3bb5770a938c0e436b3dd1f3bfb558cbcbea665144dffb
font_01_sfnt_off0000dd15.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDD15 5400 bytes
SHA-256: 14c8a06cb043e6c7f98d8e8bea89c52fb5133b1c7d26483d2e78c74b17c1a0f7
font_02_sfnt_off0000ef6c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEF6C 4284 bytes
SHA-256: 8d7e33d5e3bb495e1b99690e65a4c2d5cf9408226aeb63292ef3b4fdca7bd11b
font_03_sfnt_off0000faf0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFAF0 12868 bytes
SHA-256: 049adf84428f179a089e56eeb6b74600961363ab4f3e98049ec2a99ab841ef76
font_04_sfnt_off00012468.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12468 16504 bytes
SHA-256: 701b2394efa97742e955ff7ce0220d1afe2a4052c6a76d54f5b5deccf03a6273

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