Malicious PDF — malware analysis report

Static analysis result for SHA-256 03c17d308f5bbab0…

MALICIOUS

PDF

74.9 KB Created: 2020-12-07 15:41:23 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: 79d125c64ea3c860c6ba6789191943af SHA-1: bb1219852e1ab65775be476adb0b332c10eb2bf6 SHA-256: 03c17d308f5bbab0bfbdf3d004702623a377af1618ace401f71215b671561f23
96 Risk Score

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 0.9997

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://trafffi.ru/strik?utm_term=fortnite+account+generator+2020 PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4378155/normal_5f9932af06da3.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4481164/normal_5fa8b702e05a2.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://static1.squarespace.com/static/5fc15c11ea4a794d564840ae/t/5fce050f0ab5d62feb1867fe/1607337231556/cennet_todo_vuelve_novela_completa_en_espanol.pdfIn PDF document text
    • https://s3.amazonaws.com/fuzafuzeruwit/ximizujujijufi.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbcf4a645ca4f7902655bf9/1606218918731/pudurojikevit.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc556d5df132613bbdb1115/t/5fc89ff0d6e0cc37e3415141/1606983665701/vodafone_net_pack_online_recharge_chennai.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc0805cd49dd12447321748/t/5fc259871972c46e3ceaa7f5/1606572426074/kukuxevulumi.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc12df85bcb0228a284406c/t/5fc684cb9ee0f32b8736e76c/1606845647699/zyx_ultimate_r100.pdfIn PDF document text
    • https://s3.amazonaws.com/dogazisuze/small_engine_repair_manuals_free.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/52bc4d78-adb8-4854-a2d7-4aec2295f2bf/dusiwoxuridokik.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc57727ab79f442f2485e4b/t/5fcde16acded405bb8fae8b7/1607328106944/road_trip_planner_australia.pdfIn PDF document text
    • https://s3.amazonaws.com/wumodukubaru/33715744550.pdfIn PDF document text
    • https://s3.amazonaws.com/vedexajawo/19446430765.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc0e335a5bc066edfa5a857/t/5fc14663f8cdb769c61264ee/1606501987881/angry_birds_luca.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_off0000dc5c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDC5C 4988 bytes
SHA-256: cfa4292f62449fe0c343fd2007b659e8d4e908151326b7fbc8297182ee28d059
font_01_sfnt_off0000ed5a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xED5A 2628 bytes
SHA-256: 64179c1d283f1e27bc94b9da5d43a03f4f7c80838bc189bb9e87840c940705ba
font_02_sfnt_off0000f884.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF884 10968 bytes
SHA-256: 59a7273154f907e91147524c9fda1c523ff8d4536f14ff7be8ed324763ed399e