Malicious PDF — malware analysis report

Static analysis result for SHA-256 6f58ef29eac45421…

MALICIOUS

PDF

71.3 KB Created: 2021-02-24 03:47:57 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 048475c31618e4375e47074047030436 SHA-1: 5f116c882a7af5d6b96cdfdae749f547d62cb4ad SHA-256: 6f58ef29eac4542162f31b645d0d245537129a2d51f01230cc4758a86dbd1886
96 Risk Score

Malware Insights

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

The PDF file was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing trojan. It contains an embedded URL that mimics a search query, likely intended to trick the user into clicking it. While no scripts were directly extracted, the PDF structure and embedded URLs suggest it's designed to lead the user to a malicious site.

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://jacksth.ru/strik?utm_term=how+much+does+it+cost+to+fix+floor+joists
    • https://berekiba.weebly.com/uploads/1/3/1/4/131482976/3d0db0080.pdf
    • http://telgrm.site/hootsuite_certification_exam_answers_2018fbfsi.pdf
    • http://shtangelkipokupkiitd.online/hm_inspectorate_of_probation_annual_report_2018su0yy.pdf
    • http://furniture21.online/barnes_and_noble_free_book_sz2t5l.pdf
    • http://degunoneb.iblogger.org/thule_roof_rack_instructions_manual.pdf
    • http://xivibogo.22web.org/the_standard_hotel_miami_wedding.pdf
    • http://thelandofbadideas.com/rasowobiletotajakunmx3h.pdf
    • https://cdn.sqhk.co/zubavagi/iisUW0p/i_remember_you_chords_adventure_time.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://xunevonobi.epizy.com/allgood_elementary_school_uniforms.pdf
    • http://vevemaj.rf.gd/moto_g_2nd_gen_sim_card_slot.pdf
    • http://danidagibi.epizy.com/31093665155.pdf
    • https://s3.amazonaws.com/tasufagijaremo/fopetukuvezi.pdf
    • http://memirilili.epizy.com/96596268287.pdf
    • http://zunimesigo.rf.gd/business_letter_format_sample_with_letterhead.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000dad8.bin
9c0f73f6d6cfa3d4ada2ee62b0571444c8110a054026f1f1fa06479492cb8399		 pdf-font-stream PDF embedded font (sfnt) at offset 0xDAD8 5248 bytes
font_01_sfnt_off0000eca2.bin
3d70c151177930222dfcb710f6c59968b02783c7721e64af438829ffd79401ac		 pdf-font-stream PDF embedded font (sfnt) at offset 0xECA2 10388 bytes

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