Malicious PDF — malware analysis report

Static analysis result for SHA-256 9d4e18a2bc18068d…

MALICIOUS

PDF

71.8 KB Created: 2021-01-08 17:00:23 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-18
MD5: ee816f85eb6e293c0ee17747550c63a1 SHA-1: aa238b1f4e046311f919eca806d9d5c1189084c7 SHA-256: 9d4e18a2bc18068da0fb762f6a26bfffd0f51094082332f490e5a2077b0ddc8d
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 0.9997

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://trafftec.ru/aws?utm_term=ancel+vd500+manual+pdf PDF link annotation
    • https://cdn.sqhk.co/zonejonono/Awmggje/rock_music_equalizer_settings.pdfIn PDF document text
    • https://cdn.sqhk.co/dodazija/LihxPhj/jegiwifajobuberewegus.pdfIn PDF document text
    • https://cdn.sqhk.co/fabukujeb/HgiQYhb/infinite_fighter_shadow_of_street_download.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4370304/normal_5ff5312434d07.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/ca0cc130-bcdd-4bc0-adcc-9a9b8fd34bc3/45812284104.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6d08940d-49b3-4869-b21e-1471da8f028d/vovekabazomexunejemavade.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6ea6acfe-24bf-4094-9098-e99166d82307/brownie_guide_challenge_badges.pdfIn PDF document text
    • https://s3.amazonaws.com/pevuwarobuvowa/get_accident_report_online_nyc.pdfIn PDF document text
    • https://s3.amazonaws.com/zizene/e_wallet_project_report.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ddd69c6c-2ba9-47b4-a0f1-c10222893b3a/38164022330.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8c65a3c7-8a91-4d07-868a-96414b773ee8/macroeconomics_krugman_3rd_edition_free.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ac5e79aa-c717-4ac9-b162-15c38cebda27/paralyzed_5e_concentration.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_off0000d076.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD076 4988 bytes
SHA-256: 2d9b1e213fcdad17c48b96065c5cb098c07c7a56b875be1c99da7f0b631d5ab9
font_01_sfnt_off0000e15c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE15C 10244 bytes
SHA-256: 68249bf902c229d284aa46c6bcc013e5aa251806a7acc77196e8039e7f7c9115
font_02_sfnt_off00010485.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10485 4324 bytes
SHA-256: d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378

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