Malicious PDF — malware analysis report

Static analysis result for SHA-256 65259d3c7774eb18…

MALICIOUS

PDF

86.3 KB Created: 2021-03-18 14:28:57 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-07-07
MD5: c2ead20abf8bd098f8449a57df2c8d09 SHA-1: 8eca0bcacc84d2165ffae348f9268a3ffe7a7a6f SHA-256: 65259d3c7774eb1812d54512efda7febd8a338fa75bd939b4726704b2619ad27
96 Risk Score

Malware Insights

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

The PDF file was flagged 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 for phishing or malware distribution. Although no scripts were explicitly extracted, the PDF structure and embedded URI suggest it's designed to trick users into visiting a malicious site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://gimoguvi.ru/strik?utm_term=ar+15+scope+and+red+dot+setup PDF link annotation
    • http://fridgeservice.ru/braid_places_in_houston1b7cs.pdfIn PDF document text
    • http://checkmyscore.info/tres_metros_sobre_el_cielo_pelicula_completa_descargar_gratiseqxaa.pdfIn PDF document text
    • http://okstore.info/wobadevitegerawbdx1b.pdfIn PDF document text
    • http://lirerigoteses.22web.org/bangla_natok_boro_chele_2.pdfIn PDF document text
    • https://cdn.sqhk.co/vutowogipu/4ZgdiZq/cross_roads_isd_jobs.pdfIn PDF document text
    • http://tipines.iblogger.org/bienestar_social.pdfIn PDF document text
    • http://sehq.xyz/80394786377h0817.pdfIn PDF document text
    • http://infonewstravel.com/34631876802ttvgm.pdfIn PDF document text
    • https://cdn.sqhk.co/ragojagef/hgzqidy/79330795996.pdfIn PDF document text
    • http://fabermanufacture.ru/taxafavekikajarawa37epi.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/xonobijikivo/how_navy_seals_lead_and_win.pdfIn PDF document text
    • https://s3.amazonaws.com/luborinizu/93271414201.pdfIn PDF document text
    • http://tugujaxozulir.rf.gd/37401356004.pdfIn PDF document text
    • http://xajulazozu.epizy.com/aadat_punjabi_song_status_video.pdfIn PDF document text
    • http://jojineboge.rf.gd/boolean_algebra_and_logic_gates_questions.pdfIn PDF document text
    • https://s3.amazonaws.com/fadadedezeker/dark_souls_3_third_boss_guide.pdfIn PDF document text
    • http://wigewedarigal.rf.gd/arduino_starter_kit_book.pdfIn PDF document text
    • https://s3.amazonaws.com/wixamupelinere/fozor.pdfIn PDF document text
    • https://s3.amazonaws.com/werowibovezoje/does_cyberpunk_2077_run_well_on_xbox_one_x.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_off000115ad.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x115AD 5200 bytes
SHA-256: 4fc93ec1dcc762c22ba3aab9b9a480d1ac38a3dc3eb1cc3f210c45fff8c6a882
font_01_sfnt_off00012777.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12777 10704 bytes
SHA-256: 225b9e1e4c2789ed6035c97e8a50159778ecdd1a6c5f1fdbd92404ff0ce70070

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