Malicious PDF — malware analysis report

Static analysis result for SHA-256 685415e5c84fdeb8…

MALICIOUS

PDF

70.6 KB Created: 2020-11-17 15:51:29 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-02
MD5: d0d3c2d53d8b920e988840d9481580e2 SHA-1: 5ade06eff404f3e33e2b04436824a3de3ca7eaef SHA-256: 685415e5c84fdeb8c92da16d955b6637deea7a44a9c3a323fcd555b02468a86b
154 Risk Score
Tags
free-cdn-ebook-manual-lure

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 routes users through malicious redirector infrastructure. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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
  • 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.
  • 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://cctraff.ru/strik?utm_term=sp+racing+mof3+v1+manual In PDF document text
    • https://cdn-cms.f-static.net/uploads/4365626/normal_5f8ab9b4e464e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4370284/normal_5fab8e16e1369.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4390659/normal_5f9db9936eb05.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4387571/normal_5fa00478472d4.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4408464/normal_5fa9c73866a33.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://uploads.strikinglycdn.com/files/dc7bc889-efd4-471d-98a3-86e0776ef101/90806832086.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2b763c1a-4b15-464f-9732-22eec37b5f46/baditobezilimuzosite.pdfIn PDF document text
    • https://s3.amazonaws.com/dadupawo/cuisinart_coffee_makers_ss15_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/dogazisuze/absolute_dating_worksheet_answers.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7682068e-a6e5-4915-841b-da08a91ee8a7/los_chistes_mas_crueles_del_teleton.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5db3aeab-fd17-4b00-8bd9-6de0cc0d0985/73919550638.pdfIn PDF document text
    • https://s3.amazonaws.com/varolexexus/42522015134.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ca19.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCA19 5220 bytes
SHA-256: ec3429bbaa2cc854239280ded57cf00ce72154181fd320e6fe2777cc14cfa3bf
font_01_sfnt_off0000dbc4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDBC4 10824 bytes
SHA-256: 6a1c27493efe1530b360c6951a748c01610d2c5c3b49f0e7fa22c0c5f675ce3b
font_02_sfnt_off00010020.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10020 4324 bytes
SHA-256: 1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361

Open this report in the interactive analyzer, or submit your own file for analysis.