Malicious PDF — malware analysis report

Static analysis result for SHA-256 9996de10ead56399…

MALICIOUS

PDF

70.7 KB Created: 2021-03-18 00:18:45 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 736d9651081a0bbc7a71e9033ef9eb39 SHA-1: eb06edc6c6e72001cec40c02f9ad0f590f6951b1 SHA-256: 9996de10ead56399ae33d7e2d46db8d857fb3caee322e1c5e95a1ed2b5317263
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF file was detected as malicious by ClamAV and an ML classifier. It contains an embedded URL that leads to a suspicious domain, likely intended to host phishing content or malware. The document body, though heavily obfuscated, appears to contain keywords related to car parts, suggesting a lure for users interested in such items.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://seumenha.ru/strik?utm_term=2004+ford+focus+sedan+rims
    • https://cdn.sqhk.co/zifiguwosu/hjwje7o/shell_tapup_uk.pdf
    • https://cdn-cms.f-static.net/uploads/4369917/normal_6023e368e6338.pdf
    • https://cdn.sqhk.co/givesaxi/heNQBjb/minecraft_diamond_minecart_command.pdf
    • http://lunurapezos.iblogger.org/bodyboss_ultimate_body_book.pdf
    • https://cdn.sqhk.co/sorubajuzoxe/Uhehdjh/access_my_landrum.pdf
    • http://mebel-albero.ru/how_to_be_an_explorer_of_the_worldwh4gp.pdf
    • http://cosmostil.top/114377379236rfz8.pdf
    • https://static.s123-cdn-static.com/uploads/4448347/normal_5fc612f83db0b.pdf
    • http://pss77.ru/mefojatureritedesifulbv79u.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://uploads.strikinglycdn.com/files/089fd081-5f16-4fe1-8539-7815d1549032/tetirubirivudojo.pdf
    • http://texagofudadeket.epizy.com/48704461007.pdf
    • https://uploads.strikinglycdn.com/files/1fd23e02-b3c8-49ab-89e4-eee5947a7666/summer_infant_monitor_keeps_turning_off.pdf
    • https://uploads.strikinglycdn.com/files/5ed1efa7-8791-4630-a916-20f62e3e9c7d/wazikavudar.pdf
    • https://uploads.strikinglycdn.com/files/e8e0fe8d-971e-46f3-ab75-062d5d9cefa3/25289000179.pdf
    • https://uploads.strikinglycdn.com/files/2873f59e-d4b7-4ff2-8de4-60cca17832f9/2424975976.pdf
    • https://uploads.strikinglycdn.com/files/46820c52-6b48-472a-a435-728a9283bc7f/wim_hof_method_10_week_course_free_download.pdf
    • http://nefaped.epizy.com/cannibal_island_movie_free.pdf
    • https://uploads.strikinglycdn.com/files/7e8a112a-c43c-4375-baf2-15ca53b4ba21/why_is_my_router_not_connecting_to_the_modem.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d5c3.bin
85ae99ede38ff60af4d33074d2fcb6ce942dfcd4036700ea9ac93f176c512728
pdf-font-stream PDF embedded font (sfnt) at offset 0xD5C3 5400 bytes
font_01_sfnt_off0000e814.bin
7ff8c1ada840f2e70304ff7dacc45a678f05103a100a60d4a2bcf87b4bc3fab7
pdf-font-stream PDF embedded font (sfnt) at offset 0xE814 10860 bytes