Malicious PDF — malware analysis report

Static analysis result for SHA-256 ea8c354f49b606c0…

MALICIOUS

PDF

74.8 KB Created: 2021-03-04 15:33:58 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-22
MD5: 9a8ae20d967e19726070092424612012 SHA-1: 5edaced038354f72c6974cbe72a2c1c63f0c46ae SHA-256: ea8c354f49b606c0b1deda7159ab0d05ac261cd2f9c43cd482b3d3bec6deb1d4
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://dugedepap.ru/123?utm_term=what+are+the+top+10+movie+quotes PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4378157/normal_5fc57dc9c531e.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4443815/normal_5ffa03e0bac2b.pdfIn PDF document text
    • https://cdn.sqhk.co/gopuxipo/gjiOzbX/wodibudawogogenugoduziked.pdfIn PDF document text
    • https://cdn.sqhk.co/wakivugex/hjAtTgj/how_to_use_weapon_mastery_tokens_doom_eternal.pdfIn PDF document text
    • https://cdn.sqhk.co/minamojazi/anhiz2M/huey_s_beyond_burger_calories.pdfIn PDF document text
    • https://cdn.sqhk.co/jezofadu/4QHJ5e7/31914035399.pdfIn PDF document text
    • https://cdn.sqhk.co/vugasoveg/eXlVz0E/51007177528.pdfIn PDF document text
    • https://cdn.sqhk.co/kewixoretuze/9GibBtI/20865882299.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/gateme/first_aid_kit_monthly_checklist_template.pdfIn PDF document text
    • https://s3.amazonaws.com/bomupi/liturafafita.pdfIn PDF document text
    • https://s3.amazonaws.com/jenisozazewubo/carls_sims_4_cheats_guide.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0cf14090-1257-4f04-956e-2fac1ce2dede/zidapunaxonopewagupojur.pdfIn PDF document text
    • https://s3.amazonaws.com/purixifusipelid/jeketirusefimiriziwevif.pdfIn PDF document text
    • https://s3.amazonaws.com/fenatagazise/biological_macromolecules_crossword_answer_key.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ccb7fbb2-d8b6-455a-a792-146a896ff960/51873193461.pdfIn PDF document text
    • https://s3.amazonaws.com/farezelof/ib_english_language_and_literature_guide_2019.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/acee7cd0-3785-45c9-9f66-137ba79186b6/83971933464.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_off0000ea6d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEA6D 5420 bytes
SHA-256: 7f5012509e1a30d029f2e071b3fca5ebfc8f8842309826c3235026fa5ad6775a
font_01_sfnt_off0000fcc9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFCC9 9864 bytes
SHA-256: 3896d1030d4aa9abb327f907c670d0bbcfdc6d493ec570d64d80371f1f821e84

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