Malicious PDF — malware analysis report

Static analysis result for SHA-256 d2715983991b4d5f…

MALICIOUS

PDF

84.3 KB Created: 2021-03-14 04:33:10 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-20
MD5: 072d9b23176f40c24127fe571481ba5c SHA-1: d6c16f483e8d30e057c14e6ed3f745180468afe1 SHA-256: d2715983991b4d5fe66b84f15f56a5c67f0596abcf2dafe1e02950bbc91359b4
96 Risk Score

Malware Insights

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

The file was detected as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It contains an embedded URI pointing to a suspicious domain, likely used to deliver a malicious payload or conduct phishing. The document body, though heavily obfuscated, suggests a lure related to 'green roofs', which is a common tactic to entice users to click on malicious links.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9970

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://pelibifir.ru/award?keyword=como+construir+techos+verdes+pdf PDF link annotation
    • http://kodepovorivapi.mygamesonline.org/autocad_underlay_print_quality.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4425772/normal_60148b5844b8d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367275/normal_604af13f40c5f.pdfIn PDF document text
    • http://zafumeze.iblogger.org/what_is_the_best_air_purifier_for_a_large_room.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4421336/normal_5fee364ed4c84.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/5bca19ba-224c-42db-92a0-2c5692294d4d/to_kill_a_mockingbird_chapter_3_and_4_questions_and_answers.pdfIn PDF document text
    • http://pulawev.epizy.com/pipixo.pdfIn PDF document text
    • http://lunurubu.rf.gd/85015032735.pdfIn PDF document text
    • http://zitadufafasid.onlinewebshop.net/59670239993.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/997186f7-fba7-4c01-9836-a2a9b226e451/26002546756.pdfIn PDF document text
    • https://s3.amazonaws.com/pulujolatepuv/chaliya_chaliya_video_song_free.pdfIn PDF document text
    • http://nazowovemozugiv.myartsonline.com/the_twilight_saga_white_collection_book.pdfIn PDF document text
    • http://munetatetosi.epizy.com/denaxapep.pdfIn PDF document text
    • https://s3.amazonaws.com/woxorojero/sample_treasure_hunt_questions_and_answers.pdfIn PDF document text
    • https://s3.amazonaws.com/dogazisuze/momentum_psi_physics_multiple_choice_questions_answers.pdfIn PDF document text
    • https://s3.amazonaws.com/rebesudanolo/hollywood_movies_in_tamil_dubbed_full.pdfIn PDF document text
    • https://s3.amazonaws.com/voxipanovigepiv/sweat_equity_agreement_sample.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/16b7ff68-fe74-466d-a799-4e22c55541ed/holt_handbook_fifth_course_chapter_3_answer_key.pdfIn PDF document text
    • http://mudikavorutemu.epizy.com/25632965304.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e4647873-6018-41f4-aea6-70f919f75645/rutidejumi.pdfIn PDF document text
    • https://s3.amazonaws.com/dowavelaxam/epic_seven_elements_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/towutoginadivu/sogafozorog.pdfIn PDF document text
    • https://s3.amazonaws.com/dudujopixejikug/greased_baking_sheet_definition.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9f0297d5-0d11-42d0-ad8d-fcef9d912215/nlt_filament_bible_review.pdfIn PDF document text
    • https://s3.amazonaws.com/tufitijinexu/naregaxezewojatiz.pdfIn PDF document text
    • https://s3.amazonaws.com/diwitapezu/t-fal_triple_basket_deep_fryer_fr50ad50.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_off0001096c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1096C 5120 bytes
SHA-256: 7ad321fba957b18f8e1d01d90ed7eae6c281e2236ba47c39fdaf6e549a3e56df
font_01_sfnt_off00011ab6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11AB6 12136 bytes
SHA-256: 6bb964172cc66b883c2cb65e0702f4b3bf389be8ac01a4c36319c1e8378512e4

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