Malicious PDF — malware analysis report

Static analysis result for SHA-256 8b470ab085f58f12…

MALICIOUS

PDF

75.9 KB Created: 2020-12-02 08:56:44 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-26
MD5: 152e8b39d899b42edfc14657881d905d SHA-1: 1d16b25b699782de0be7fed1553f4ccf48e9ff22 SHA-256: 8b470ab085f58f122b5550412d1909a90d9483a708280ffaf23ede5781fc22f3
214 Risk Score

Malware Insights

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

The PDF contains a significant number of embedded links, with one identified as a known malicious redirector. The document body, though heavily obfuscated, appears to contain a lure related to 'Twilight full movie online'. The presence of a link farm and a malicious redirector suggests an attempt to direct users to potentially harmful content or phishing sites.

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
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • 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://traffking.ru/123?utm_term=twilight+full+movie+online In PDF document text
    • https://cdn-cms.f-static.net/uploads/4393370/normal_5f954ec06b10a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366364/normal_5f8def54cbfcb.pdfIn PDF document text
    • https://vudexomitimezi.weebly.com/uploads/1/3/4/7/134717123/e4dceeada.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368495/normal_5faed622c2bf1.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366327/normal_5f88c5c22f2c0.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4389394/normal_5fa36a7745b97.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4414164/normal_5f9d96336622b.pdfIn PDF document text
    • https://jumegelizo.weebly.com/uploads/1/3/4/7/134712838/mitukitise.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/1008a613-3eaf-40b9-8cb6-e846c7835c61/kipakirifi.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ec597ca8-ab06-4ed0-95c1-50515bfe10c2/gareva.pdfIn PDF document text
    • https://s3.amazonaws.com/lopadivupudexa/kadunubutogobefidux.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e846e8ea-367f-494b-9cba-78982b72c7aa/loxeperusilipupojuxedeg.pdfIn PDF document text
    • https://s3.amazonaws.com/nupotukig/france_schengen_visa_application_form_egypt.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9552811b-1866-4d9b-b3cb-d2507ebbf23e/fulagawaxaxep.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_off0000edd8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEDD8 4796 bytes
SHA-256: 5d262cceafa57c0a0660f20e49115bebee70c45d586559217cd0bc87e7b6db90
font_01_sfnt_off0000fe27.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFE27 10832 bytes
SHA-256: f464814a9e16046f7d963763ef3c66fee119019e1b54a529d3376c817f364ea5

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