Malicious PDF — malware analysis report

Static analysis result for SHA-256 be49d6852926fd18…

MALICIOUS

PDF

160.1 KB Created: 2020-12-24 05:22:12 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-31
MD5: 97be4eb288e0f9ef2f8f1f7bdda4e9e6 SHA-1: d6fd39c3b6d61cf46f4048e6fc15ad3cd4cd29ad SHA-256: be49d6852926fd182439f3a46851ff87b1ab88aae03ffe6ec1e3ed4a72fd6e81
96 Risk Score

Malware Insights

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

The PDF contains an embedded URL that, when clicked, leads to a suspicious domain, indicating a phishing or scam attempt. The ML classifier and ClamAV detection strongly suggest malicious intent. While no scripts were explicitly extracted, the PDF structure and embedded URI heuristic point towards a malicious document, likely intended to deliver a second-stage payload or redirect the user to a malicious site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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/123?utm_term=justice+of+the+peace+bexar+county+marriage PDF link annotation
    • https://vafunaparixidi.weebly.com/uploads/1/3/4/6/134627598/nakawimibif.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4381740/normal_5fa187d770247.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4443594/normal_5fb71381277d9.pdfIn PDF document text
    • https://cdn.sqhk.co/lisutovudaf/ftljfge/bantam_chickens_for_sale_near_me.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4381081/normal_5f9a912dc0d5e.pdfIn PDF document text
    • https://menelaxewo.weebly.com/uploads/1/3/4/3/134362368/rubup.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4382972/normal_5fbe6a8374dc1.pdfIn PDF document text
    • https://cdn.sqhk.co/zijikunu/tk8igic/seginirodujojiwenesegoni.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4370319/normal_5fa24b1e68c8c.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/a03ca648-e7cb-40f8-b366-38f416e9c941/sanotiz.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1a8317c3-a221-49a2-9340-1e404b797a4e/ffxiv_alchemist_leve_guide.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c61c3b26-6f15-4fdc-bee7-ccca0e659e83/still_star_crossed_series.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_off00023996.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x23996 5696 bytes
SHA-256: 73e4dcd2ed218e0a5c7e9598aa7aececd19ce3e49f86e938ca16926e7ec52fa7
font_01_sfnt_off00024cdb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x24CDB 11508 bytes
SHA-256: 7b1313ebc76cfac9a6bfb5591cfa4ce9050d41a24c714bbfb7f66ab994fb3309