Malicious PDF — malware analysis report

Static analysis result for SHA-256 11cfc5c076ae6f9b…

MALICIOUS

PDF

198.3 KB Created: 2020-12-10 10:06:05 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-02
MD5: 81c8461ac1e55a2c06156f83f505bf24 SHA-1: df818fb9d1b3c30b79d9a5094aa5f5c2ae33c34c SHA-256: 11cfc5c076ae6f9bcd72f2570ba9c15e0dae5fbeb890476ea5050268360ddf74
96 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 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 0.9967

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://trafffi.ru/strik?utm_term=why+is+autocomplete+not+working+in+chrome PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4366331/normal_5fc5ca74ce6e1.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4379485/normal_5fb6a8258ce5b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4466370/normal_5fafe50f851fd.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4377936/normal_5f8d95152e196.pdfIn PDF document text
    • https://surudebed.weebly.com/uploads/1/3/4/5/134513173/lefebagi_tigetusurobefu.pdfIn PDF document text
    • https://jatorogerujew.weebly.com/uploads/1/3/2/7/132710569/jixidused.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4426695/normal_5fcfac4616bad.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/d852821d-2f06-4eb6-acf0-6d45f68ccf82/yamaha_yst_sw216_review.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/85c60ae3-7b54-43a4-81b9-152421798a86/17696625178.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f81dbf47-dae6-4771-b189-0818ba087b9d/city_bidding_book.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/721f70dc-c290-4475-9038-4fa6beb94752/pou_monedas_infinitas_descargar.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/866861a6-7311-483f-8a4f-27d1a8f28e9b/one_piece_episode_602_english_subbed.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ec7982ab-06ba-4d96-8e07-eacfde7e05cc/customer_success_manager_resume_examples.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/54820192-1046-4e19-bb5e-57b31f59ef1c/55620232898.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc2d35b88c99b6d37b3c5c5/t/5fc64025f81c9a2a0c784f01/1606828070187/pemidudikeworewugixet.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/50254e7e-c6b1-48da-9547-3c1dcebada5b/the_scarlet_ibis_test.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_off0002d35e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2D35E 5620 bytes
SHA-256: 0d626ef099957f3757a7511b01d1d4953a44706822959282e875ce27cea84165
font_01_sfnt_off0002e66e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2E66E 11288 bytes
SHA-256: 234f0e9d76f6f5557cf5498b68a01401b291d9b574b9dd6a0cc06eca912d869b

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