Malicious PDF — malware analysis report

Static analysis result for SHA-256 ce10d3a180f241ea…

MALICIOUS

PDF

80.5 KB Created: 2021-04-09 04:05:09 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-24
MD5: b4738cdf8dc470f68faf4b09ba80fd71 SHA-1: 59c28f61173a2470e077f2ab4ace5217282874a7 SHA-256: ce10d3a180f241eaf90fe8ce947bb2066313e5877479642273ed42ded17326d2
96 Risk Score

Malware Insights

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

The PDF contains heuristics indicating an external URI and embedded URLs, with one URL being particularly suspicious. The ML classifier and ClamAV detection strongly suggest malicious intent. The document body, though partially corrupted, appears to be a lure related to building a house, directing the user to a malicious domain.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9967

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://golowaki.ru/strik?utm_term=how+to+build+a+easy+modern+house+in+bloxburg PDF link annotation
    • http://chtotakoeverti.biz/elkay_water_fountain_filter_resets9gsu.pdfIn PDF document text
    • http://farotosinotom.mywebcommunity.org/16854614168.pdfIn PDF document text
    • http://cupe1.ru/how_old_is_prince_caspian_in_prince_caspian193jq.pdfIn PDF document text
    • http://xijipeva.mypressonline.com/sekinanubololewesun.pdfIn PDF document text
    • http://pumba.fun/how_to_treat_plantar_fasciitis_at_home_youtubexwmak.pdfIn PDF document text
    • http://nncucuucuc.space/160844152408ep98.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/vatakefojunib/bewars_movie_songs_telugu_lo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b2176746-8037-44bd-852a-b0beec420ca2/best_flip_phone_for_seniors_t_mobile.pdfIn PDF document text
    • https://s3.amazonaws.com/fapaga/the_success_principles_audiobook.pdfIn PDF document text
    • https://s3.amazonaws.com/joterige/10202297522.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e0da6d6e-cbea-4287-b54c-13a0a3660bf7/zusanuvefupedomuwupatu.pdfIn PDF document text
    • https://s3.amazonaws.com/divexikav/electrode_potentials_chemguide.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d210b6cf-6475-4bf7-947f-22dcf90f67be/macbeth_act_3_reading_comprehension_questions.pdfIn PDF document text
    • http://dafuwinev.myartsonline.com/cardio_workout_exercises.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a47e90b3-6987-44c8-b78f-c42a72980721/82684662667.pdfIn PDF document text
    • https://s3.amazonaws.com/fizufapu/surviving_the_dust_bowl_video_answers.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d02f20cb-1f25-4f99-8258-f75b2f964ca7/thinking_fast_and_slow_audiobook_free.pdfIn PDF document text
    • https://s3.amazonaws.com/numunenoji/zowam.pdfIn PDF document text
    • https://s3.amazonaws.com/fuwenoxuzasila/tupperware_mini_rice_cooker_directions.pdfIn PDF document text
    • https://s3.amazonaws.com/pexodugosa/wemuwedipulojepu.pdfIn PDF document text
    • http://lufiwivumijej.myartsonline.com/learning_french_for_beginners.pdfIn PDF document text
    • http://zaduzos.myartsonline.com/definition_of_business_research.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2e4a6818-01e1-4752-88e7-4bc88b6576a9/hoover_carpet_cleaner_detergent_walmart.pdfIn PDF document text
    • https://s3.amazonaws.com/jagux/steering_committee_report_companies_act.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8eb407ec-6360-4008-856e-4f36f795576d/how_do_i_reset_my_sony_dab_radio.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f6176556-d32f-48e2-a7b1-d3686271dfb1/how_to_sea_lions_protect_themselves.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_off0000f99b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF99B 5604 bytes
SHA-256: 9af3ead143cff91510130a30a856e52b008619e00ca7219af4f45349dc551bdf
font_01_sfnt_off00010c90.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10C90 11080 bytes
SHA-256: 0f4263644331524052b2047b16be7cac207b12ab507c2e2647ea5d5198c6436a

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