Malicious PDF — malware analysis report

Static analysis result for SHA-256 30985f619570ecfa…

MALICIOUS

PDF

81.0 KB Created: 2021-03-12 16:34:45 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-21
MD5: 498b457a1229b6f45860862e0b30be45 SHA-1: 47e06a5edfcc276f4bb91f73ce3e15e0398a434a SHA-256: 30985f619570ecfa3b8d6978a437264683653b99c0b0edb5ee4df914bfbd5ae8
96 Risk Score

Malware Insights

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

The PDF file was flagged as malicious by a machine learning classifier and ClamAV, indicating a phishing or trojan payload. The embedded URL points to a suspicious domain, likely intended to host a malicious download. The document body, though partially corrupted, contains text related to a driver download, suggesting a social engineering lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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://pelibifir.ru/strik?utm_term=wireless+gamepad+f710+driver+windows+7+64+bit PDF link annotation
    • https://cdn.sqhk.co/tarekekog/cgcBh3Z/ritejogudokun.pdfIn PDF document text
    • https://cdn.sqhk.co/mofijovelu/dTKlojd/derwent_graphite_pencils_review.pdfIn PDF document text
    • https://cdn.sqhk.co/jupurutage/iggelhf/el_amadis_de_gaula.pdfIn PDF document text
    • https://cdn.sqhk.co/livatunozasu/ahidOic/harvard_business_manager_abo_osterreich.pdfIn PDF document text
    • https://cdn.sqhk.co/jixuvepabu/fjdiiiV/wopenufumisezawegem.pdfIn PDF document text
    • https://cdn.sqhk.co/dufimogemeka/Wid9Jhj/kizapobezosefib.pdfIn PDF document text
    • https://cdn.sqhk.co/waxobakal/ehbnWZB/wudanu.pdfIn PDF document text
    • https://cdn.sqhk.co/gotofebelu/5jgi8ja/98827042642.pdfIn PDF document text
    • https://cdn.sqhk.co/pixafosabow/gjZCMhj/epic_race_3d_app.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/kelukakeb/korean_drama_chinese_subtitle_free.pdfIn PDF document text
    • https://s3.amazonaws.com/vukujidor/what_is_the_average_salary_of_a_mechanic_in_the_uk.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2df030a3-ea70-414f-8510-d78d0cd1f4ff/weebly_tutorial_for_teachers.pdfIn PDF document text
    • https://s3.amazonaws.com/dozore/flysheet_tenda_dome.pdfIn PDF document text
    • https://s3.amazonaws.com/miwolezedubujoz/nifekevegu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c3019fcf-9787-448b-85b4-4323ad307964/30882656721.pdfIn PDF document text
    • https://s3.amazonaws.com/viboxikuz/2777023869.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/29cd0887-024b-4732-a036-2eeac2727f29/kofosotigorefiwiku.pdfIn PDF document text
    • https://s3.amazonaws.com/tenunud/31398510382.pdfIn PDF document text
    • https://s3.amazonaws.com/belopudevuzuza/semokofipidafexomosinur.pdfIn PDF document text
    • https://s3.amazonaws.com/buxoparadazegu/xaduwafajomuw.pdfIn PDF document text
    • https://s3.amazonaws.com/kavugusepe/dearly_beloved_sheet_music_kingdom_hearts.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_off0000f3b1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF3B1 6180 bytes
SHA-256: af110303d1eac28228d8c7494e4245cfd1cd8cf9481451cc9a1ff08781df6c61
font_01_sfnt_off000108d0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x108D0 13936 bytes
SHA-256: 247df1701118d3361b881df8db1aa41a0b267be256dc76a2454e2173e96897c9

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