Malicious PDF — malware analysis report

Static analysis result for SHA-256 6bc3a81b49b0ea90…

MALICIOUS

PDF

72.4 KB Created: 2021-04-02 06:51:10 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-22
MD5: b2c1c481dfc8c229a3bed49bb3077477 SHA-1: 8a88588bd55d6cda23334d51629f086c8c4efcc8 SHA-256: 6bc3a81b49b0ea9013ac0022834725674ef9f306606fa39de045f96c1e5ebd4a
96 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://kuzutuzo.ru/strik?utm_term=how+to+clear+error+code+on+maytag+washer PDF link annotation
    • http://valigulepi.scienceontheweb.net/uso_de_energias_renovables_en_mexico.pdfIn PDF document text
    • http://xumupizaxuto.scienceontheweb.net/30753348636.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4454043/normal_6060a884b0910.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4413112/normal_5feaf93dcf456.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://ronevudewakoreb.epizy.com/40638803121.pdfIn PDF document text
    • https://s3.amazonaws.com/vonutavekip/23565167560.pdfIn PDF document text
    • https://s3.amazonaws.com/wazagidonux/gegit.pdfIn PDF document text
    • https://s3.amazonaws.com/tosego/vimadulela.pdfIn PDF document text
    • https://s3.amazonaws.com/wezukep/is_harry_potter_series_available_on_amazon_prime.pdfIn PDF document text
    • https://s3.amazonaws.com/susonanezaj/physics_projectile_motion_practice_problems_with_answers.pdfIn PDF document text
    • https://s3.amazonaws.com/muvevanepen/ditenob.pdfIn PDF document text
    • http://bukijujer.rf.gd/hamilton_beach_flexbrew_thermal_carafe.pdfIn PDF document text
    • https://s3.amazonaws.com/kexamoxusinixu/letowusijuzojemakoxoju.pdfIn PDF document text
    • http://zepurudevivo.rf.gd/dubupukazukom.pdfIn PDF document text
    • https://s3.amazonaws.com/tojazudibumogab/focusrite_scarlett_2i2_1st_generation_vs_2nd_generation.pdfIn PDF document text
    • https://s3.amazonaws.com/mikibetiv/ligirazezexu.pdfIn PDF document text
    • https://s3.amazonaws.com/novifamigot/vector_free_apk.pdfIn PDF document text
    • https://s3.amazonaws.com/dakebesuvum/77963182944.pdfIn PDF document text
    • https://s3.amazonaws.com/kezemiradigu/pokemon_nightmare_moon_rom.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000deca.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDECA 5508 bytes
SHA-256: 0baaa7e9c39cb85ed0186def0338c865ec74b35b5c26737b44d9578d31d85d23
font_01_sfnt_off0000f173.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF173 10088 bytes
SHA-256: 827e5ab9d729dbcd1d23d7c2aa2dcc5a5e7fd9f28c45ab41c84975fc32e4b6fa

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