Malicious PDF — malware analysis report

Static analysis result for SHA-256 472c3cfc494d51f1…

MALICIOUS

PDF

66.3 KB Created: 2020-12-09 09:14:52 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-02
MD5: 72f339b063ccf68c43b3c7448a7c8c79 SHA-1: ddeec971830c3869c73b2a8d3cda1226c607e942 SHA-256: 472c3cfc494d51f12c2623f10fab0991d2cf0df09ca96e190f55fe70c2fee446
96 Risk Score

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://traffking.ru/strik?utm_term=baby+mario+characters+costumes PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4370073/normal_5fae9946ed81a.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/a1a81d8b-b440-4b4a-b9d1-6584af17b141/vivovol.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b4c63922-b9b4-4dee-821b-2aaa68dcf4db/85050438716.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc5a2040a2757459b03286b/t/5fcd02f80ab5d62febf5c0d3/1607271161241/genamuruponerinuwol.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/fd8a85aa-df31-4774-b6c2-66beed3181b3/bojufejupagidazoris.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9bbe0ced-1792-4939-9990-3744e409756c/79616796624.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/80cb28b6-55b0-4135-9796-665f0a897301/85921532006.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1dd20ae5-ea22-49fd-a40b-ce8ab4badd5c/kekogutirazeti.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/bcc7b80f-14a1-413c-a82d-f1f0d2e0f4d9/sezevufunojogizun.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/23bde6aa-e245-475d-a2ab-143054031173/just_like_dad_1995.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc39939a879396864191ab0/t/5fcd76d0d336b863f0d7ed7e/1607300818010/wbt_stock_price_today.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b2427f1d-61ad-4c60-a7d1-a27bbfdd7fd7/wezof.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_off0000c726.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC726 5300 bytes
SHA-256: bd6c0b0941812bfaeaf7ae2e80fb034a800684aa2404e7a2bbcb6abeee608d6b
font_01_sfnt_off0000d906.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD906 10664 bytes
SHA-256: 7478dc8aad08870b3ccc4fd8ccb7ecbc84473d4cf20467d96040ae39e6dc9ad6