Malicious PDF — malware analysis report

Static analysis result for SHA-256 020e38864e50c2d2…

MALICIOUS

PDF

66.0 KB Created: 2020-11-17 23:47:20 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-11
MD5: 24d69500ba4bb57c792b8d17e3a56940 SHA-1: 2830d0fcccb31962aac765bffa691c136528a0c4 SHA-256: 020e38864e50c2d255b93d363f57c16c28cbb06476380ff46078000a583cde8a
156 Risk Score

Malware Insights

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

The PDF contains a significant number of external links, identified as a 'PDF_SEO_LINK_FARM' heuristic. The ML classifier and ClamAV detection strongly indicate malicious intent, with ClamAV identifying it as 'Pdf.Phishing.Trojan'. The embedded URLs suggest a phishing or malicious redirection scheme, likely to distribute further malware or lead users to fraudulent content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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
  • 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.
  • 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://trafftec.ru/strik?utm_term=dragon+friends+green+witch+breeding PDF link annotation
    • https://voziguwotameba.weebly.com/uploads/1/3/4/3/134345279/237228.pdfIn PDF document text
    • https://wikujodavo.weebly.com/uploads/1/3/4/6/134649345/judefekuxage-businemajevofe-fuwaxeja.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4393900/normal_5fb2e48442801.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4486778/normal_5fac19b4ae51c.pdfIn PDF document text
    • https://sopodepewujo.weebly.com/uploads/1/3/4/3/134340903/bcb2ac611847b2a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4384154/normal_5f90dbafda1ad.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/lazolu/ginuzawivikuvir.pdfIn PDF document text
    • https://s3.amazonaws.com/zonebon/vusugabir.pdfIn PDF document text
    • https://s3.amazonaws.com/jobavo/71617611797.pdfIn PDF document text
    • https://s3.amazonaws.com/posufij/mega_man_x5_weaknesses.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/98807467-7239-4fdc-879f-503ac42a4075/59034362476.pdfIn PDF document text
    • https://s3.amazonaws.com/leguvefu/18590516037.pdfIn 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_off0000c4eb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC4EB 5484 bytes
SHA-256: 7a335d0a528b0c7a3a18eabfc617f1c8916b6b6db9d93cfa8b961bb59a15984c
font_01_sfnt_off0000d7a6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD7A6 10568 bytes
SHA-256: 4a475c082a9bee35835630f3ea611270cfaa37442841cb8f511ed472e76d5fef

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