Malicious PDF — malware analysis report

Static analysis result for SHA-256 d109b5b4e72b2433…

MALICIOUS

PDF

79.1 KB Created: 2021-02-19 13:52:09 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-22
MD5: 5a6e90d59788473287416004e2388c27 SHA-1: 5b28ec866d0d837df9a159ab495ca488cc96dd2e SHA-256: d109b5b4e72b2433e2fb0282acbdcacfe343be0120a5126d6982ee39ea439897
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 0.9991

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://seumenha.ru/123?utm_term=death+note+movie+english+cast PDF link annotation
    • https://pesiwuveso.weebly.com/uploads/1/3/5/3/135392822/9806228.pdfIn PDF document text
    • http://my-favshopg.online/naruto_online_trainer_v1._5i8y1c.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4490377/normal_5fdd239376be1.pdfIn PDF document text
    • http://microbestdigitalmeter.xyz/hydroxyzine_davis_drug_guideprqgd.pdfIn PDF document text
    • http://nextauto02.ru/62020042328twyko.pdfIn PDF document text
    • https://zokemubolito.weebly.com/uploads/1/3/4/8/134895641/9678b5ca9f.pdfIn PDF document text
    • https://narufana.weebly.com/uploads/1/3/4/6/134653256/01d5eb1.pdfIn PDF document text
    • https://bufudelazevel.weebly.com/uploads/1/3/4/7/134734798/9243ce56678b0.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4427103/normal_601d56b253b49.pdfIn PDF document text
    • https://cdn.sqhk.co/zakolemafemo/dgiyRQD/98952355739.pdfIn PDF document text
    • https://cdn.sqhk.co/benanejufa/fhcgdhd/zozoxijogun.pdfIn PDF document text
    • http://neojust.ru/crazy_fruit_and_ice_cream_trujillo_instagramjvi02.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4457854/normal_5fe49340ac66c.pdfIn PDF document text
    • https://cdn.sqhk.co/molivovuki/igCzii9/9971898573.pdfIn PDF document text
    • https://cdn.sqhk.co/xujurovemu/tic6btX/goxagulusomabigomediva.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/dopugaxelelema/form_8606_non-_deductible_ira_contribution.pdfIn PDF document text
    • https://s3.amazonaws.com/domegagowevag/pc_brightness_control_software.pdfIn PDF document text
    • http://pusevim.epizy.com/44933941016.pdfIn PDF document text
    • http://sovizaz.epizy.com/pepotipibavirezedoke.pdfIn PDF document text
    • http://nezeseg.epizy.com/petete.pdfIn PDF document text
    • https://s3.amazonaws.com/wujafivabipo/top_performing_managed_funds_2018.pdfIn PDF document text
    • https://s3.amazonaws.com/lolijexejomak/preset_converter_lrtemplate_to_xmp.pdfIn PDF document text
    • http://kutifakibidi.rf.gd/35786115675.pdfIn PDF document text
    • https://s3.amazonaws.com/mipizaju/tivol.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_off0000f81c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF81C 5176 bytes
SHA-256: bf07c132df3f9364e669de554a5a048eadcf2f8f9f4d138ac6cc74cfcf0c4929
font_01_sfnt_off000109a9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x109A9 10756 bytes
SHA-256: c46f8128ae87e48f7e8d753223159ebf28fbf28b8999cb2cfd6b5f933cdde21a

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