Malicious PDF — malware analysis report

Static analysis result for SHA-256 d1d67c9c155dfa78…

MALICIOUS

PDF

72.3 KB Created: 2021-02-27 19:17:31 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: ae103e27097c6b33dba7ee8eef342136 SHA-1: 9eabac4665997aaf07f55c3fd047fd4a2ecd5f5b SHA-256: d1d67c9c155dfa78309f3350fc33e7de19e934523fc086cdfe287f4ba7997b69
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://soxebez.ru/aws?utm_term=here%2527s+negan+book PDF link annotation
    • https://bovejivisesuja.weebly.com/uploads/1/3/1/3/131384116/kasarabiwux_fezafas_ziwifaxun_lukisatig.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4409623/normal_6024b7c817db4.pdfIn PDF document text
    • https://fotobuwab.weebly.com/uploads/1/3/4/3/134368258/dinekuvexapenu-xefipeb-visamemegub.pdfIn PDF document text
    • http://beach-fruit.fun/918256425654y6m.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4448986/normal_600a3dba628c0.pdfIn PDF document text
    • https://babixugopanodip.weebly.com/uploads/1/3/5/3/135382952/7828857.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4388416/normal_601c9942efe27.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4369764/normal_5ff8fb0e6ad45.pdfIn PDF document text
    • https://zunimivivonuz.weebly.com/uploads/1/3/4/0/134017399/acf05e9c9cf24.pdfIn PDF document text
    • https://widajuzuno.weebly.com/uploads/1/3/1/6/131637349/9df81e054.pdfIn PDF document text
    • https://lenexemumuvag.weebly.com/uploads/1/3/1/4/131438583/turinosej.pdfIn PDF document text
    • https://lijokojojet.weebly.com/uploads/1/3/5/3/135333606/3808608.pdfIn PDF document text
    • https://rupimobo.weebly.com/uploads/1/3/4/8/134891389/6582366.pdfIn PDF document text
    • https://cdn.sqhk.co/lezubenewago/zc8geCx/xaxiboga.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4449410/normal_5fcf603486dd6.pdfIn PDF document text
    • http://trells.space/70921013776pq3sp.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4390659/normal_6031cf5e2e202.pdfIn PDF document text
    • http://lnstagrambusiness.com/svt_5eme_digestion_evaluation_exerci15xro.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_off0000dcf7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDCF7 5020 bytes
SHA-256: c08b910ea526ba9c5496140c354ad4274b2c9746d430aa614a5be5d847fdb3d9
font_01_sfnt_off0000ee21.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEE21 11140 bytes
SHA-256: c59e9d1839d31d79d8c6eb5c2ac88a99862a7909b4d5772b386f2952c6eed5cb

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