Malicious PDF — malware analysis report

Static analysis result for SHA-256 06d0dc8f45082e67…

MALICIOUS

PDF

465.0 KB Created: 2021-06-13 22:24:02 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-24
MD5: a81d12ef12d48b8baf42b135888b161d SHA-1: 2e838c802f22392daccdfcf6f78c11739b8210f0 SHA-256: 06d0dc8f45082e674d16f2b8c2f7a3654020c94ff3eb4a29b6ae3e3653b4e224
126 Risk Score

Malware Insights

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

The PDF file was detected as malicious by ClamAV and an ML classifier, indicating a phishing or trojan payload. It contains numerous embedded URLs, many pointing to compromised WordPress sites, suggesting an attempt to redirect users to malicious content. The 'Sonic movie scene creator' lure in the document body, combined with the numerous external links, strongly indicates a phishing or malware distribution campaign.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8952

Heuristics 5

  • 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.
  • 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://krisoc.ru/uplcv?utm_term=sonic+movie+scene+creator PDF link annotation
    • http://arcomproltd.com/userfiles/file/59918055127.pdfIn PDF document text
    • https://arizonapoolcontractor.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a89a0936646---53933248201.pdfIn PDF document text
    • http://kojeneckezbozi.eu/userfiles/file/vunoluxobawidigasepizi.pdfIn PDF document text
    • https://myphi.biz/nbloom/fckuploads/file/jezojuxotemegajo.pdfIn PDF document text
    • http://medica-eg.com/userfiles/file/futaterojod.pdfIn PDF document text
    • http://al-bandak.com/userfiles/file/vonedovesotaxufutotilok.pdfIn PDF document text
    • https://incoyun.com/calisma2/files/uploads/popelutazogegalinazovok.pdfIn PDF document text
    • https://afriqueitnews.com/wp-content/plugins/super-forms/uploads/php/files/ae9eb3b93a3332ca5487b7d2a2ce0265/92446828272.pdfIn PDF document text
    • https://gdr.co.il/wp-content/plugins/super-forms/uploads/php/files/f3da73e00c709a07a2fa6fa1013898a5/44154283957.pdfIn PDF document text
    • https://carcable-bg.com/uploads/pictures/files/62862225335.pdfIn PDF document text
    • https://kingcarmotorista.net/uploads/files/xovekevinezomide.pdfIn PDF document text
    • https://nbtele.com/en/cache/fck_files/file/wilaxog.pdfIn PDF document text
    • https://2greenchicks.com/wp-content/plugins/super-forms/uploads/php/files/7da899b03c31e7ccaf47cc20f64da491/7244108800.pdfIn PDF document text
    • https://www.arc-welding.co.uk/wp-content/plugins/super-forms/uploads/php/files/7pqm0rojc9bve60up8c9b2eohu/27905222698.pdfIn PDF document text
    • http://modelkyujin.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608319ef925db---figivelajesukasisajunu.pdfIn PDF document text
    • https://xn----7sbabak5acz7byau.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/9bcc479e178c8995a9c29653977e3991/xigilarera.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0006f911.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6F911 5076 bytes
SHA-256: 0dd7f4a629e250baa9ee52063cbf031893c9bc8e67c6fc129b6fc344658e8504
font_01_sfnt_off00070a45.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x70A45 11836 bytes
SHA-256: 88d6529f2d6c132383b4ebcc5ef236356beb691b70c51a23b30d88656c7c35c7

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