Malicious PDF — malware analysis report

Static analysis result for SHA-256 3d7a20a50b897d46…

MALICIOUS

PDF

83.5 KB Created: 2021-03-30 05:00:31 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: 1db5e969cecd688859dacbdb3a8f3b87 SHA-1: 163dd69ccac87d252c9b60255ede3efcd15123c6 SHA-256: 3d7a20a50b897d4644ed630cc18980a50707e4f13d31bd99039b1dea39f3474f
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 0.9994

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=harman+pellet+stove+dealers+in+virginia PDF link annotation
    • https://cdn.sqhk.co/kiribikiv/aGaW92B/free_vr_games_ps4_store.pdfIn PDF document text
    • https://cdn.sqhk.co/vefapatape/dXxieii/bazomasutorujuwor.pdfIn PDF document text
    • https://cdn.sqhk.co/denepepunuja/j4jbhbV/snapchat_filters_freeze_camera.pdfIn PDF document text
    • https://cdn.sqhk.co/jasurisunav/c2Pgild/lead_king_loop_trail.pdfIn PDF document text
    • https://cdn.sqhk.co/puwukuwos/jbjeGv3/datiseman.pdfIn PDF document text
    • https://cdn.sqhk.co/kokojisip/hgcXfhe/super_simple_nursery_songs.pdfIn PDF document text
    • https://cdn.sqhk.co/xidodaxu/ihc6ibk/67647724317.pdfIn PDF document text
    • https://cdn.sqhk.co/kuzaxepigi/ihd9kgg/nikuw.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4480383/normal_601dd72b3245d.pdfIn PDF document text
    • https://cdn.sqhk.co/bupewazadufa/bhhRgdr/55885023934.pdfIn PDF document text
    • http://pufivuziviv.mypressonline.com/jogonivakoleloguxeb.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4501367/normal_6009ae63b7cef.pdfIn PDF document text
    • http://medemukiduba.sportsontheweb.net/zuxojaterokeduvex.pdfIn PDF document text
    • https://cdn.sqhk.co/nejisakatok/e8itiha/zombie_shooter_2_games_free_download_apkpure.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/f2565e0d-cb91-438c-91bd-22341fcbf58c/99073929245.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/956e8b7b-2c2a-4e90-9164-83eab97a3759/dijexezove.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/61c534c4-b208-430e-8bd2-4753ae510d45/oracle_sql_developer_for_dummies.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2705239a-ceaf-4442-9188-c9f82f6ae941/gefoxebu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/72c35e60-1ff3-417f-841d-1518dd8d1c6c/bissell_crosswave_pet_pro_plus_on_carpet.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/cc4070ce-8e33-48bf-b785-5ac03aa7dca8/which_samsonite_luggage_is_the_best.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6c320910-7d5c-4459-8916-c7476d0a6c55/lajadesomunesap.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/cf5473f6-57f2-4e83-ae30-8d04c7573a20/47087039267.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7218c2a0-e528-402e-b011-3657937471a5/18560456213.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_off0001097a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1097A 5300 bytes
SHA-256: 3432023c408b85062987c3a71c603f35708ec5cd4d75126411bfe1efbcbf148b
font_01_sfnt_off00011b6b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11B6B 10952 bytes
SHA-256: a28acdf0e86dec6b0d781053b137db46e895dd3952a79ae58e857846f545e4c8

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