Malicious PDF — malware analysis report

Static analysis result for SHA-256 447e9d714a1d631e…

MALICIOUS

PDF

82.3 KB Created: 2021-03-26 07:21:02 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 84f48579ed9e1302e77d475f56890de6 SHA-1: bae0e1500b2e73f56559c8e36f70c7e4b44abc76 SHA-256: 447e9d714a1d631e9129136f1595bfbfbc1cdfef98d7a165753acdb822141d8d
96 Risk Score

Malware Insights

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

The file is a PDF document that contains an embedded URL pointing to a suspicious domain. ClamAV and an ML classifier have flagged this PDF as malicious, specifically as a phishing trojan. The document body, though heavily obfuscated, appears to contain metadata related to its creation, including the URL, suggesting a phishing lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9994

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/strik?utm_term=walter+benjamin+reflections+summary
    • https://cdn.sqhk.co/vogoxaginoje/rhjhiaX/zegawidud.pdf
    • http://zemegazi.22web.org/jewilolitufube.pdf
    • https://cdn.sqhk.co/mofijovelu/eBp9dcF/canon_print_inkjet_selphy_install.pdf
    • https://cdn.sqhk.co/pomoliwekag/iatbjfp/cardfight_vanguard_pc.pdf
    • https://cdn.sqhk.co/weralutofa/geh0fgf/how_to_play_poker_rdr2.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://0b609444-e5a2-4a7e-9779-a3c6bae51a53.filesusr.com/ugd/529dbf_e3d21b6f788744f5890d87bd099d6712.pdf?index=true
    • http://pumokijovepipo.epizy.com/bilozokiwitez.pdf
    • https://c18d9829-3add-4afa-bc87-35007fe3998a.filesusr.com/ugd/70c1ec_c10b74cf6ff74646b97b3684f5d5ccb3.pdf?index=true
    • http://bedegotix.epizy.com/basic_electronics_dover_books_on_engineering.pdf
    • https://uploads.strikinglycdn.com/files/aef5b519-1411-4756-8567-55e7e52a92a1/80027740097.pdf
    • https://uploads.strikinglycdn.com/files/b5602184-6c67-4054-aa92-c1bee3506c91/how_to_dating_a_girlfriend.pdf
    • http://wuduzukatej.epizy.com/natwest_chaps_payment_form_uk.pdf
    • https://s3.amazonaws.com/mejobu/asalem_gurthukuradhu_song_in_naa_songs.pdf
    • http://divasopib.rf.gd/spider_gwen_comic_espaol.pdf
    • https://s3.amazonaws.com/dumupa/cognos_reporting_tool_logo.pdf
    • http://tikimolanevi.rf.gd/britannicus_commentaire_compos.pdf
    • https://s3.amazonaws.com/bopuxosavubare/hollywood_reporter_box_office_results.pdf
    • http://fametofet.rf.gd/how_do_i_start_learning_programming_for_beginners.pdf
    • https://fa202315-5cd5-4006-9a99-7c5d4406650e.filesusr.com/ugd/61804c_22ac4e48aa8b48198305700b76b33712.pdf?index=true
    • https://d2faa26e-66ca-44cd-8f84-883624a71019.filesusr.com/ugd/dbbfd0_044d83544df2401ca9fbb9cd40360d75.pdf?index=true
    • https://70848fb0-0fd0-490a-9360-2ffa38fc212c.filesusr.com/ugd/08e331_3d05870925d74042a233d79b9d936430.pdf?index=true
    • https://uploads.strikinglycdn.com/files/28137085-410f-46c1-96d9-fb96e182b32d/49867329229.pdf
    • https://uploads.strikinglycdn.com/files/09e6c74f-56b8-4e74-b812-ebc33ba5216a/what_size_tires_are_on_a_2012_dodge_charger.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_off0000ff27.bin
c25398cf9983ab44ac8ff2a302d0cd4782b358b3dcb1883fc95ecf2913693ab4		 pdf-font-stream PDF embedded font (sfnt) at offset 0xFF27 5360 bytes
font_01_sfnt_off00011166.bin
7f517f21b7a6312ffa1cbff0563006bd2fa44df8e78336f50c2d4ba876ea42a5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x11166 12464 bytes

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