Malicious PDF — malware analysis report

Static analysis result for SHA-256 1ebe947e011965e8…

MALICIOUS

PDF

83.3 KB Created: 2020-12-23 06:44:52 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-11
MD5: 5bd0e92d16d132962fd8cd5bf5d8d1f5 SHA-1: 87ecf4929635405ee104a23a648c673d0025c329 SHA-256: 1ebe947e011965e86f1c90faf4d33cc0a3e76233885e2f08901c26fecdca6ab3
156 Risk Score

Malware Insights

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

The PDF contains a large number of external links, many pointing to Weebly-hosted PDFs, suggesting a link farm or SEO manipulation tactic. One prominent URL, 'https://traffnew.ru/strik?utm_term=nightmares+from+the+deep+3+davy+jones', is likely a malicious redirect or landing page. The ClamAV detection and ML classifier strongly indicate malicious intent, likely related to phishing or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://traffnew.ru/strik?utm_term=nightmares+from+the+deep+3+davy+jones PDF link annotation
    • https://nitikado.weebly.com/uploads/1/3/4/6/134660078/9646111.pdfIn PDF document text
    • https://kufurana.weebly.com/uploads/1/3/1/4/131482954/0cf13812d44c5a.pdfIn PDF document text
    • https://wolapegod.weebly.com/uploads/1/3/0/7/130776073/7951454.pdfIn PDF document text
    • https://wemovimezatura.weebly.com/uploads/1/3/4/6/134611727/1091554.pdfIn PDF document text
    • https://vigoxanumevu.weebly.com/uploads/1/3/4/4/134466257/kuxata_dokeguvepaguz_mebuk_kosojeved.pdfIn PDF document text
    • https://wubigunes.weebly.com/uploads/1/3/4/5/134507070/4730326.pdfIn PDF document text
    • https://labisafedowep.weebly.com/uploads/1/3/4/7/134722654/vegexijogof.pdfIn PDF document text
    • https://mogilifus.weebly.com/uploads/1/3/0/7/130739831/sixukejomiwewanage.pdfIn PDF document text
    • https://pejopazuzaguwoz.weebly.com/uploads/1/3/2/8/132815183/3f3ce0c2bb7.pdfIn PDF document text
    • https://degusatujetuz.weebly.com/uploads/1/3/0/8/130813325/vutuv_jigizizikom_vokubife_telafirukinowin.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/tezofuretejom/jexoraroluzeruwumigujad.pdfIn PDF document text
    • https://s3.amazonaws.com/tobobowu/bdo_organic_feed_vs_good_feed.pdfIn PDF document text
    • https://s3.amazonaws.com/pazifetanegapu/tixavugokunutokijap.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a3066cfd-0bea-44f4-8358-0895688b0f78/zakupaga.pdfIn PDF document text
    • https://s3.amazonaws.com/lulelepese/management_of_change_template.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
    • http://www.geocities.com/mitra_anirban/hobbies.htmGNUIn PDF document text
    • http://www.gnu.org/copyleft/gpl.htmRegularIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f9d3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF9D3 5792 bytes
SHA-256: 7ec9c5503c5184a3760909c814f6deaceac2ca15d8b17c2ab501d13029493065
font_01_sfnt_off00010d7b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10D7B 3720 bytes
SHA-256: b91f3c26f37c28538ed09035cbea6f9221827f1e30b50c452f08cc820bcc167b
font_02_sfnt_off000118de.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x118DE 11520 bytes
SHA-256: 07432d2d6689a866aa585499bff24d22f489c2c849152ea1bf40f32c46f0c914

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