Malicious PDF — malware analysis report

Static analysis result for SHA-256 28982c8f3c74f7a9…

MALICIOUS

PDF

80.2 KB Created: 2021-03-15 16:19:59 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 32e3828c3fff755824a64a7d9f475446 SHA-1: 791c5e6032b8574ef5427213d127b06f9a17c848 SHA-256: 28982c8f3c74f7a9711e21830a875537818ddcd5df798232c2c9902fab3bf55c
96 Risk Score

Malware Insights

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

The PDF file was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing trojan. It contains an embedded URI pointing to a suspicious domain, likely intended to redirect the user to a malicious site. The document body, though heavily obfuscated, suggests a lure related to 'Anneliese the exorcist tapes'. No scripts were extracted, but the presence of external URIs and the malware classification strongly indicate a phishing attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

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://ponafet.ru/123?utm_term=anneliese+the+exorcist+tapes
    • http://fito4ka.xyz/average_age_of_a_homeless_persontgxil.pdf
    • http://goproonly.com/23600326151ceuju.pdf
    • http://alternativeinfluencenetwork.net/tng_ch_lng_nghim_ting_phncnxhr.pdf
    • http://ooovseanalizi.ru/kasezariferaforbqr.pdf
    • https://cdn-cms.f-static.net/uploads/4394073/normal_604205204f8b5.pdf
    • http://idealica-italiaofficial.site/chronicles_of_narnia_full_movie_online_in_hindi5xjri.pdf
    • https://cdn.sqhk.co/futevanu/hfapp3z/universe_synonyms_in_urdu.pdf
    • https://cdn.sqhk.co/ludozenidi/UYySKhg/amazon_fire_stick_remote_not_working_properly.pdf
    • http://artistichomesolutions.com/70345383106sl3k4.pdf
    • http://eurofamily.pro/97707971660otdyj.pdf
    • https://cdn-cms.f-static.net/uploads/4454304/normal_6026066be48cb.pdf
    • http://olipaka.xyz/taxujijerojuseximegok8uy4h.pdf
    • http://vidclips.design/96637476800vl8y0.pdf
    • http://enots.space/zorerasidexamitidot2g7zw.pdf
    • http://ampinternational.org/48729673233mgs19.pdf
    • https://cdn-cms.f-static.net/uploads/4491723/normal_5fda4b30ebaa1.pdf
    • http://olymptrade.buzz/is_there_going_to_be_a_season_5_of_magicians18d7k.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • https://s3.amazonaws.com/jedaxopopuko/bose_wave_music_system_iii_user_guide.pdf
    • https://s3.amazonaws.com/gajabedafot/glencoe_algebra_2_workbook_answer_key.pdf
    • https://s3.amazonaws.com/megodipewukitoj/58795732135.pdf
    • https://s3.amazonaws.com/jexijer/biriyani_movie_video_songs_isaimini.pdf
    • https://s3.amazonaws.com/bajuse/80361471393.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ea56.bin
d4297130b12cba3f08f6f755b68cdef5bf42b8e2f8213b2bce90e2e8eb52f615		 pdf-font-stream PDF embedded font (sfnt) at offset 0xEA56 4868 bytes
font_01_sfnt_off0000faca.bin
01b814feb21db0fbbf9adf57b257c73b822614ed71df2ce9e2e6764a6cef4cd2		 pdf-font-stream PDF embedded font (sfnt) at offset 0xFACA 13076 bytes
font_02_sfnt_off00012500.bin
ce7e2e230a41ba6fc2d7d2240890c8289d67876d84a3d076d67c0b48111c8230		 pdf-font-stream PDF embedded font (sfnt) at offset 0x12500 4324 bytes

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