Malicious PDF — malware analysis report

Static analysis result for SHA-256 d106b10e0ef8b715…

MALICIOUS

PDF

40.6 KB Created: 2021-03-30 05:59:33 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-25
MD5: 678a0934fcc7f41b13720596eb6d7382 SHA-1: 04daa090a88fa4be371238ab8942ae0808e5f488 SHA-256: d106b10e0ef8b715e9496e202618a612f1f9bf2fc2497a6cbb745cfce529aa25
144 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF is identified as malicious by ClamAV and an ML classifier, and exhibits characteristics of a phishing lure, such as being image-heavy with a clickable action. The document body contains obfuscated text and metadata, and numerous embedded URLs are present, suggesting an attempt to redirect users to malicious sites. No scripts were extracted, but the PDF structure itself is indicative of a malicious intent to deceive.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9080

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • Image-only document with action trigger (screenshot lure) medium PDF_IMAGE_LURE
    PDF has 1 image(s), only 0 text block(s), carries a click-outward action, and is only 40 KB — typical shape of a phishing lure where a full-page screenshot hides a clickable button that launches or submits to an attacker URL.
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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://kesizibewasi.weebly.com/uploads/1/3/0/8/130813921/9852174.pdf In PDF document text
    • http://potuduwatolebu.mywebcommunity.org/manual_de_anestesia_local_zeyco.pdfIn PDF document text
    • https://cdn.sqhk.co/zipirevofu/dshjgip/amapiano_beat_maker_ll.pdfIn PDF document text
    • https://cdn.sqhk.co/xovujiroveg/iaBihia/5_seconds_of_summer_teeth_13_reasons_why.pdfIn PDF document text
    • http://tezuveripoxub.mypressonline.com/como_puedo_hacer_un_bosquejo_para_predicar.pdfIn PDF document text
    • http://zonizubiro.getenjoyment.net/pc_das_english_grammar_book_free_download.pdfIn PDF document text
    • https://cdn.sqhk.co/xovinexesun/fmrhfZw/xelakenuwoza.pdfIn PDF document text
    • https://dimutaribosisup.weebly.com/uploads/1/3/4/4/134444719/luzoxibilubufugosol.pdfIn PDF document text
    • http://xuzotudaraderuf.mypressonline.com/automotive_sensors_and_actuators.pdfIn PDF document text
    • http://xomutukegadoj.mypressonline.com/jafepezajaxemid.pdfIn PDF document text
    • http://feedproxy.google.com/~r/wb/ENAH/~3/Ecv9gJ3Ok6E/wb?keyword=how%20to%20workout%20with%20resistance%20tubePDF link annotation
    • http://zegiwewezenaro.myartsonline.com/bosotoputufir.pdfIn PDF document text
    • http://xedibotiwunupu.epizy.com/letozevenusevodulozave.pdfIn PDF document text
    • http://kugefosames.rf.gd/xizatomir.pdfIn PDF document text
    • https://7a579b3f-ce96-4c66-abdc-991530493d29.filesusr.com/ugd/010c6b_7071a4c4a5574c208ba4c7b2ade68848.pdf?index=trueIn PDF document text
    • https://8533cbf3-c0d6-400c-bdf8-8ca38cf0242b.filesusr.com/ugd/135178_61808d8e7475424189ef849caa533a1f.pdf?index=trueIn PDF document text
    • https://34ea5197-a9e9-4ba5-99bb-a7dd7aeba98b.filesusr.com/ugd/234f58_3eda885036a042338f8b9087eb55b903.pdf?index=trueIn PDF document text
    • https://1c684d3d-b1aa-4d58-8f8e-408f9cf37fac.filesusr.com/ugd/64d889_6ae7ef5b7d7d4551979f2f3dedc69e44.pdf?index=trueIn PDF document text
    • https://e4586023-485a-43f1-9451-2d404684c5b7.filesusr.com/ugd/95ff22_a9485f125b814a008a0e690cedb84925.pdf?index=trueIn PDF document text
    • http://seniduvako.epizy.com/12382885523.pdfIn PDF document text
    • http://doxanoz.rf.gd/vavilowufabinawinaseba.pdfIn PDF document text
    • http://vizepojuduw.rf.gd/35721238599.pdfIn PDF document text

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