Malicious PDF — malware analysis report

Static analysis result for SHA-256 d206b82c68601693…

MALICIOUS

PDF

68.8 KB Created: 2020-12-13 23:17:36 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-01
MD5: c28e64b2fc9c92316efb598d6edc767e SHA-1: dac0998292b42d4b68675171527a1f8140fc5c93 SHA-256: d206b82c68601693239dc83bd4a8c0ea22fa82d85cf4640d23a575e4d02d5024
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 0.9998

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://traffine.ru/strik?utm_term=praxis+5624+study+guide PDF link annotation
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/7fdd9a2f-9142-426e-87f6-94858efd5b81/kdl-40r510c_miracast_lagging.pdfIn PDF document text
    • https://s3.amazonaws.com/kasuwevovog/11397453482.pdfIn PDF document text
    • https://s3.amazonaws.com/bejenosugede/66501513121.pdfIn PDF document text
    • https://s3.amazonaws.com/ganubifirigevi/godel_escher_bach_francais.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/51ba0120-a8fd-4c56-a1b7-f6630799289f/putonasowegejewelit.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/dd7060a9-8660-4a88-a8cc-1bf009eb05c3/6377263092.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/df1c9fb2-4985-4821-bc2e-84dcb914ce74/to_kill_a_mockingbird_double_entry_journal.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc17973bf71053ccb1438e7/t/5fcc1897978da30c56ec5545/1607211160423/man_or_vampire_1._5_5_mod_apk.pdfIn PDF document text
    • https://s3.amazonaws.com/pajukovuxetu/31627000476.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ec32df12-8e73-4a63-a500-78b4ca2a6a15/sazoxaxovi.pdfIn PDF document text
    • https://s3.amazonaws.com/libusamagowuvo/manual_arts_jrotc.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/991371ea-2727-498b-9fc3-b623daf0a736/24749122511.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/61d651ec-d477-4c68-8386-19369cad72cc/stuart_gibbs_books_funjungle_in_order.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000b985.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB985 5628 bytes
SHA-256: 4cbd207b8a682d5b7736832b518cfe5fd96791fe9ad79aeb94a5b996ba03d6b1
font_01_sfnt_off0000ccd9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCCD9 10904 bytes
SHA-256: f5cc488c2e0f8bc6ad731f4c1a42295181cec7fe0a832b03765ee14596c7d71d
font_02_sfnt_off0000f228.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF228 16036 bytes
SHA-256: 9559dd1bd908241551916101fda3d445a26f5c4b506a1423f23393456f9d5940

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