Malicious PDF — malware analysis report

Static analysis result for SHA-256 d9aeec95cccd6817…

MALICIOUS

PDF

69.1 KB Created: 2020-12-27 04:20:36 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-03
MD5: d7d0190a9633364cbb515fea6ead5a53 SHA-1: d605d8e315de2a1f849a187e8a935ba32a958169 SHA-256: d9aeec95cccd6817babf05af21d8d1109f2d82a30bda4558f002bfa5b93bd8db
136 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution T1059.007 JavaScript

The sample is a PDF document flagged by ClamAV as a phishing trojan. Heuristics indicate it uses a social engineering lure, prompting the user to install a browser extension or update to view content. This is a common tactic to deliver malware or steal credentials. The embedded URL `https://traffnew.ru/strik?utm_term=wwe+network+sign+in+issues` likely serves as a download or redirection point for the malicious payload.

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
  • Browser extension / update installation lure high SE_BROWSER_INSTALL_LURE
    Document tells the user to install a browser extension, plugin, viewer, or browser update to view content — a common social-engineering path for credential theft and malware installation
  • 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=wwe+network+sign+in+issues PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4486359/normal_5fbf4dc9d035c.pdfIn PDF document text
    • https://cdn.sqhk.co/kevejonob/afhbLig/cod_fish_recipes_in_oven.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/e9bf84d1-5515-4550-9de3-f476ac0269ae/unknown_battleground_survival_3d.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/093f638c-f3c2-41b2-93e5-2e4754d3b56b/how_long_to_beat_amnesia.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b5028523-4801-4899-86c7-936974f9ebf3/winutebabozut.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b8846ee5-dc0b-49c7-93da-f4cf8636d531/ffxiv_samurai_pvp_guide.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/40bd1e9c-7bd2-44c7-ba22-52fc3b8adf7a/encyclopedia_of_chart_patterns_book.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/07dde1d6-ce3f-405f-b0b6-e3414c26d5ce/33505552632.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/23c905ed-6ad5-42e4-849e-f30f465a8412/fidget_spinner_phone_holder.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/614d9489-a947-40f3-9f89-cf7dc40f8ac9/70756427378.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/094f47a9-803e-4c97-bfc4-80284a695bfc/menatanozonivimovanaliru.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/bff3f618-e99a-4d75-a194-58945a0c74b1/change_keyboard_mac_os.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_off0000d262.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD262 4780 bytes
SHA-256: 1e422e2827e00fe39fd68ffb5ef71c1007afcd6966f021eed797929e5a3df10f
font_01_sfnt_off0000e2d5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE2D5 10748 bytes
SHA-256: 8f78c8b0c200524603c1a238c6566918b0be5f6ad68a2f0c6bcaa612e1780f5c

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