Malicious PDF — malware analysis report

Static analysis result for SHA-256 9eb94557c4fcfd93…

MALICIOUS

PDF

76.3 KB Created: 2021-03-01 02:26:19 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 218513fc90d50fbb60e55dbfdf0c9832 SHA-1: 9ae3f711d19b67b9fae6dc4a2ca1cdfb483efd67 SHA-256: 9eb94557c4fcfd93b3eac97b4e53c04b766f028849eafd4478a94e4310760fd2
96 Risk Score

Malware Insights

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

The PDF document contains an embedded URL that directs users to a website offering information on reprogramming a Chamberlain keypad. This is a common social engineering tactic used in phishing attacks to trick users into clicking malicious links. The ML classifier and ClamAV detection strongly indicate malicious intent, likely related to phishing or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9990

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://mezovuduw.ru/award?keyword=how+to+reprogram+my+chamberlain+keypad
    • http://wobixoka.66ghz.com/example_contract_template_for_independent_consultants.pdf
    • http://afracheat2.xyz/woporukn2b3f.pdf
    • http://navewezaninub.iblogger.org/arabic_font_for_android.pdf
    • http://leadtop.co/7981840466701r86.pdf
    • http://fakts.design/how_to_write_an_introduction_on_a_case_studybp6yv.pdf
    • http://marinarus.space/ted_talks_topics_leadershipoa396.pdf
    • https://cdn.sqhk.co/diwiporeb/hwgjaic/weather_chicago_october_23_2020.pdf
    • https://cdn.sqhk.co/nisugavu/QrfjdFW/anger_of_stick_4_offline_unlimited_money.pdf
    • https://cdn.sqhk.co/businaxidare/uiiQpJm/energy_blast_anime_gif.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://zuburojirep.epizy.com/94087100805.pdf
    • http://jupolirikajetu.rf.gd/79634605711.pdf
    • https://s3.amazonaws.com/tezude/24153051222.pdf
    • https://s3.amazonaws.com/minegikukovel/12044872392.pdf
    • http://gozudivigel.epizy.com/zijolidevexaso.pdf
    • http://xamazaxalezamat.rf.gd/web_services_aptoide_apk_install_kingroot.pdf
    • https://s3.amazonaws.com/wetevali/enthalpy_change_definitions_chemguide.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://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ed35.bin
145c771506115ecf164f7f17ff7eeeec93eec53edb15d9e6dc41aa9e56cccd1c		 pdf-font-stream PDF embedded font (sfnt) at offset 0xED35 5668 bytes
font_01_sfnt_off00010064.bin
ee0f216949a35bd57dbbe2142f26b0d3106f6eb594df428b4a43de2a3c24fba9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x10064 10452 bytes

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