Malicious PDF — malware analysis report

Static analysis result for SHA-256 5747cf24bf638ef6…

MALICIOUS

PDF

81.8 KB Created: 2021-04-02 15:51:55 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-20
MD5: a865d220cc752020770db5a3ffc32c84 SHA-1: 79ae7edc7e6d76a3817ecc70bdd39ad11ff74817 SHA-256: 5747cf24bf638ef682571e0810c215e839d3ab4b6de108b3cf59b195a4a278b9
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 URL that appears to be a lure for downloading content, likely to trick users into a phishing or malware download scenario. The document body text is heavily obfuscated or unreadable, preventing a clear understanding of its direct content, but the presence of suspicious URLs and the overall malicious verdict strongly suggest a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

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://botokaw.ru/award?keyword=adobe+photoshop+lightroom+tutorials+pdf+free+download PDF link annotation
    • http://bamirajewenexo.medianewsonline.com/35260662849.pdfIn PDF document text
    • https://cdn.sqhk.co/pefevepufi/chfjaie/wuzidufux.pdfIn PDF document text
    • https://cdn.sqhk.co/pasojixaju/jYAhcPB/dubbo_to_broken_hill_road_trip.pdfIn PDF document text
    • http://miraluvofizobe.medianewsonline.com/77229419312.pdfIn PDF document text
    • http://xikisavi.scienceontheweb.net/40234729118.pdfIn PDF document text
    • http://pekefosijemibi.sportsontheweb.net/accident_incident_report.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://s3.amazonaws.com/nitatotol/salesforce_certified_platform_developer_i_study_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/xidazeze/64311910735.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/22c965a2-bf77-413c-a3b0-8f3ee03f9ee0/que_hace_un_mecnico_diesel.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7f772398-5168-45ca-8518-61dc5aecc579/68694503460.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0cae43f1-edc8-4096-b538-686925f75ad3/how_to_turn_on_xfinity_4k_box.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b818f419-9bc0-4705-9061-a2340ea74901/is_i_go_die_dead.pdfIn PDF document text
    • https://s3.amazonaws.com/pugomonapoxuxe/32781900605.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/65f6273d-09cb-475d-a5f4-596e14a4ef9f/us_armed_forces_recruiting_office_near_me.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e7475b30-6467-4160-9592-f44e5bd12455/weber_grill_replacement_flavorizer_bars.pdfIn PDF document text
    • https://s3.amazonaws.com/dewazewokib/16838682797.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/462c670b-4114-4fc8-be96-1a1ae83c4b21/fl_studio_12_vs_20_performance.pdfIn PDF document text
    • https://s3.amazonaws.com/sizadagazagaj/liruvirawivigutexereka.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a84b0b5a-e018-4fa8-a8e5-a436ed3dfa7f/me_before_you_full_movie_download_480p_openload.pdfIn PDF document text
    • https://s3.amazonaws.com/jolozidabi/63439842869.pdfIn PDF document text
    • https://s3.amazonaws.com/kelageketisefuv/riwiwepeti.pdfIn PDF document text
    • https://s3.amazonaws.com/tesasubawalozan/guririxabafetedamagiviv.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f236.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF236 5556 bytes
SHA-256: de2d4b3387395b55faacff99b305f2188cd02b328f52cbf27d24c946dfd1c615
font_01_sfnt_off00010502.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10502 11144 bytes
SHA-256: 800393f3629bc54e34d5bacb4b1c3c975658e4009eb1d34d4407eeb05da8719c
font_02_sfnt_off00012acc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12ACC 4324 bytes
SHA-256: ce7e2e230a41ba6fc2d7d2240890c8289d67876d84a3d076d67c0b48111c8230