Malicious PDF — malware analysis report

Static analysis result for SHA-256 87fd64901834d2d4…

MALICIOUS

PDF

78.1 KB Created: 2021-05-13 23:17:49 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-22
MD5: 0dfe5b82edcf2adc4e9d8160604d189c SHA-1: 11770f033fff9e304920236cc2107b2bec14616d SHA-256: 87fd64901834d2d4fc7db0a9ec14ae6860615748819736de5b581f22c8f2238d
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 0.9993

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://lozipotod.ru/strik?utm_term=minn+kota+talon PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4387706/normal_5ff7ffc3ddc00.pdfIn PDF document text
    • https://cdn.sqhk.co/lexebogefaj/Uhfajfa/estimated_cat_population_in_us.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4453909/normal_5fd84432934ef.pdfIn PDF document text
    • https://cdn.sqhk.co/natokaze/fhjKeet/notepad_application_download.pdfIn PDF document text
    • https://cdn.sqhk.co/kidurukazag/ifiiie2/mlb_playoffs_format.pdfIn PDF document text
    • http://sifaritube.sportsontheweb.net/54296017556.pdfIn PDF document text
    • http://zikewexer.scienceontheweb.net/how_to_find_my_bosch_oven_model_number.pdfIn PDF document text
    • https://cdn.sqhk.co/bumajanivosi/jgjpjd0/47751123766.pdfIn PDF document text
    • http://tiwilofojifig.sportsontheweb.net/fluke_networks_linkrunner_pro_user_manual.pdfIn PDF document text
    • http://puveputado.sportsontheweb.net/zuvonosib.pdfIn PDF document text
    • http://fesagudomaluke.22web.org/83540057837.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4394060/normal_600fb0d7785de.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/a1be930e-38dc-49ef-8fbc-7bb8da386324/how_to_change_a_filter_on_a_tankless_water_heater.pdfIn PDF document text
    • https://s3.amazonaws.com/faxaxos/singer_futura_ce-250.pdfIn PDF document text
    • https://s3.amazonaws.com/zuwosil/apple_watch_series_3_data_sheet.pdfIn PDF document text
    • http://noxukimu.myartsonline.com/fifelu.pdfIn PDF document text
    • https://s3.amazonaws.com/matogapibelifiv/what_is_the_setting_of_the_story_coraline.pdfIn PDF document text
    • http://robuveg.epizy.com/ielts_test_report_form_british_council.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/31924c8f-8450-497b-93ba-f6c98f4e793e/x_particle_2.5_serial_number.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4ea429a8-f703-4c89-8613-29a64e7b27c7/how_long_is_ahsoka_in_rebels.pdfIn PDF document text
    • http://vijixekezej.rf.gd/86396789221.pdfIn PDF document text
    • https://s3.amazonaws.com/bipovoromoj/77922010424.pdfIn PDF document text
    • https://s3.amazonaws.com/muvemasoxaji/69544241970.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_off0000f571.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF571 4472 bytes
SHA-256: e05c114567fd0f701a4a9bb3d56a84f000e5e3085a16428a0af34a3258a68ba3
font_01_sfnt_off000104c4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x104C4 10864 bytes
SHA-256: c16d7e0ab33f7092604cbef0230a1f6bf266a11215a3160073f83d1ebd59b81d

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