Malicious PDF — malware analysis report

Static analysis result for SHA-256 951da4e28f3fe2f6…

MALICIOUS

PDF

82.0 KB Created: 2021-03-31 00:46:28 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-21
MD5: fd97231fb44bc65fe19ab31d338866ce SHA-1: b0f66a55460a509e0323ad861db277ea7da37367 SHA-256: 951da4e28f3fe2f67f4ffe77ae0c9b598dd76e4d9bc97579eead6f534499a8df
96 Risk Score

Malware Insights

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

The PDF file was flagged by ClamAV as a phishing trojan and ML classifier indicated high maliciousness. It contains an embedded URI pointing to 'resalured.ru', suggesting a phishing or malware distribution attempt. The document body, though heavily obfuscated, contains metadata related to PDF creation and potentially misleading keywords, reinforcing the lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9991

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://resalured.ru/award?keyword=hong+kong+mtr+map+english+pdf PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4458827/normal_604621d43b5b2.pdfIn PDF document text
    • http://xagevogewa.medianewsonline.com/2020_south_african_calendar_with_public_holidays.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4408976/normal_6057b8017f3ba.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4454541/normal_602142e407ddd.pdfIn PDF document text
    • https://cdn.sqhk.co/jatobeguji/gdHZhja/bexulubagipuxe.pdfIn PDF document text
    • https://cdn.sqhk.co/viwitukaz/5OFrCgf/xajazugalewuparo.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4420432/normal_60476cd82154e.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4470835/normal_6008436290554.pdfIn PDF document text
    • https://cdn.sqhk.co/lilaxikixo/IgdjgGa/kung_fu_heroes_nes_walkthrough.pdfIn PDF document text
    • http://eduha.online/formato_de_mantenimiento_correctivo_de_computadoras1fn3c.pdfIn PDF document text
    • https://cdn.sqhk.co/nadipozow/haTibjg/rapomubijarid.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4444110/normal_5fe8223344df5.pdfIn PDF document text
    • https://cdn.sqhk.co/xutazazo/f3jgNii/age_of_empires_2_multiplayer_cheat_engine.pdfIn PDF document text
    • https://cdn.sqhk.co/rupomotiz/hjGmlnr/99538099519.pdfIn PDF document text
    • http://creampiepow.club/control_center_ios_1448bwm.pdfIn PDF document text
    • http://gixapedotamerow.mywebcommunity.org/moonglow_michael_chabon.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4480412/normal_6004eb01f0991.pdfIn PDF document text
    • https://cdn.sqhk.co/ronofumito/uLbwij4/entergy_home_page.pdfIn PDF document text
    • https://cdn.sqhk.co/tojofelekob/biahfib/mckinsey_fashion_report.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4474736/normal_603804d971f2b.pdfIn PDF document text
    • https://cdn.sqhk.co/pefevepufi/jejggjk/ralphs_pharmacy_sherman_way_canoga_park_ca.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4413590/normal_6001758374b19.pdfIn PDF document text
    • https://cdn.sqhk.co/mijajijem/mgfgRig/online_spy_camera_in_pakistan.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4460678/normal_5ff3e8a36d5e4.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn 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_off00010268.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10268 5480 bytes
SHA-256: 0fcca9b20a77b6e418f05c786b4a649f770bb5a1194e354a113af6615aeb7e56
font_01_sfnt_off000114e0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x114E0 11072 bytes
SHA-256: 23f6f968da45c91f091073317c6e8fabc01e348838fa92b1af48184bdcdca0e4

Open this report in the interactive analyzer, or submit your own file for analysis.