Malicious PDF — malware analysis report

Static analysis result for SHA-256 186e8c120b15b6fe…

MALICIOUS

PDF

80.9 KB Created: 2021-04-04 06:18:46 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: cef784d60cb0834a729f9e2ce7d9968b SHA-1: 61d7e8c2191659c28d6fcc406b67d86fff83eb0c SHA-256: 186e8c120b15b6fe4469747b15e1997ccefbb499e1564569b8882c553e747dcc
96 Risk Score

Malware Insights

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

The PDF file was flagged by multiple heuristics and a machine learning classifier as malicious, with ClamAV identifying it as a phishing trojan. The document body contains text related to 'Avengers endgame full movie tamil movie', suggesting a lure to attract users. Embedded URLs point to suspicious domains, likely intended to host or redirect to malicious payloads.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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://golowaki.ru/123?utm_term=avengers+endgame+full+movie+tamil+movie
    • http://triple-doska6.club/best_magic_animation_mods_skyrimm6yd7.pdf
    • http://retys.fun/jaketogawutumuvuwelatuke0jgzk.pdf
    • http://tokio-2020.fun/dupenepolubojon3hxf.pdf
    • https://cdn.sqhk.co/tevotapomow/icS49Zw/homemade_face_masks_for_acne_and_dry_skin.pdf
    • https://cdn.sqhk.co/kewawukufiju/c1BmUbI/48918073277.pdf
    • http://profer-opt.ru/tahapan_sintesis_proteind986t.pdf
    • https://cdn.sqhk.co/fojilude/hhjwTql/november_2019_telugu_calendar.pdf
    • https://cdn.sqhk.co/pufowuvikij/elgfweH/12212325836.pdf
    • https://cdn.sqhk.co/nogedapuvul/YbZ5vje/youtube_videos_not_playing_on_tv.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • https://4f0f5a39-0a2f-4cdf-b4e4-40a644fad8b9.filesusr.com/ugd/2024fe_2b77fe66b785466eaee58570e2bcc64c.pdf?index=true
    • https://uploads.strikinglycdn.com/files/e5ff9389-5efd-4d33-8592-4becd327f02a/wikebunupuwafapur.pdf
    • http://pazokidewuwi.rf.gd/cpm_algebra_chapter_10_homework_answers.pdf
    • https://uploads.strikinglycdn.com/files/9dd9d61c-9bc2-43bc-8935-7bcd5fd4b825/how_to_remove_armitron_watch_band.pdf
    • https://f405dec1-7f90-4f4c-a861-5286f67d0127.filesusr.com/ugd/ab922d_3e612f876f7b4217a6a643cf8d5e66d3.pdf?index=true
    • https://s3.amazonaws.com/besafefaf/riduritutefo.pdf
    • https://13dbc848-c95e-4197-a439-3ae2050b6ee2.filesusr.com/ugd/46bbe5_0827a09b8ff943ec81b0a013f75007a8.pdf?index=true
    • https://uploads.strikinglycdn.com/files/6140b875-56a1-4248-a994-339426dcffeb/wisdomtree_cloud_computing_etf_stock.pdf
    • https://s3.amazonaws.com/kezemiradigu/puromivunonuxalaxakuviwir.pdf
    • http://vodadusilop.rf.gd/59614684447.pdf
    • https://uploads.strikinglycdn.com/files/990a4b42-7d68-475e-9065-21fea7b13299/technivorm_moccamaster_coffee_maker_with_glass_carafe_yellow_pepper.pdf
    • https://4b523d79-2bc6-404f-8e52-0acae4d2cb03.filesusr.com/ugd/fe1b41_c4344629438f4643ac0097c25814f232.pdf?index=true
    • 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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000edf1.bin
6c3e6818adc1be8b448866cd6878c2912d905d74333fc0d83f23dddda89835dc		 pdf-font-stream PDF embedded font (sfnt) at offset 0xEDF1 5160 bytes
font_01_sfnt_off0000ff67.bin
4ef57f111c818f74e8598827b78de972549a67b8acc90a701317f4b1fb1a165a		 pdf-font-stream PDF embedded font (sfnt) at offset 0xFF67 11464 bytes
font_02_sfnt_off00012658.bin
ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x12658 4324 bytes

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