Malicious PDF — malware analysis report

Static analysis result for SHA-256 f5e8e751b2f75678…

MALICIOUS

PDF

80.7 KB Created: 2021-02-25 16:37:15 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-22
MD5: 2d52eadc05474303c7b6c39086eee267 SHA-1: 920715149f11266160c02619bbabfc8d0118bb50 SHA-256: f5e8e751b2f756788d67fde38c9e61884f7c7310630720d809f62a512076cb5f
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 0.9998

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://crophysi.ru/aws?utm_term=what+kind+of+ink+does+epson+xp+310+use PDF link annotation
    • https://cdn.sqhk.co/todiwapubu/jjneDjt/super_rangers_cars_power_race_3ds.pdfIn PDF document text
    • https://cdn.sqhk.co/pewowutefiw/aijidD1/instant_drag_racing.pdfIn PDF document text
    • https://cdn.sqhk.co/zitibidino/hchahan/nhl_hockey_news_2020.pdfIn PDF document text
    • https://cdn.sqhk.co/widafopaj/KgdnAqx/duwomojoremot.pdfIn PDF document text
    • https://cdn.sqhk.co/bamazaludez/hi1tgf8/how_to_cake_it_strawberry_buttercream.pdfIn PDF document text
    • https://cdn.sqhk.co/vekuperik/haijgcz/race_timer_games.pdfIn PDF document text
    • https://cdn.sqhk.co/neseleko/cgdK0gX/car_loan_calculator_with_tax_and_title_florida.pdfIn PDF document text
    • https://cdn.sqhk.co/rifojimuna/f7hbcjj/29304063448.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/visagogijulep/guidepoint_job_reviews.pdfIn PDF document text
    • https://s3.amazonaws.com/kokesatodixon/9843947999.pdfIn PDF document text
    • https://s3.amazonaws.com/xiwevitox/riwiziziwivarukobividu.pdfIn PDF document text
    • https://s3.amazonaws.com/pevuwarobuvowa/41815949781.pdfIn PDF document text
    • http://legofovivaxom.epizy.com/bigger_leaner_stronger_vs_5x5.pdfIn PDF document text
    • http://mutupoda.rf.gd/9250064283.pdfIn PDF document text
    • https://s3.amazonaws.com/paxivogedewilu/difference_between_alcoholic_and_nonalcoholic_beverages.pdfIn PDF document text
    • https://s3.amazonaws.com/kitakilesa/rotujajelopiruraju.pdfIn PDF document text
    • https://s3.amazonaws.com/lezerawe/sentence_handwriting_worksheet_maker.pdfIn PDF document text
    • https://s3.amazonaws.com/wutezigojuxi/91544244918.pdfIn PDF document text
    • https://s3.amazonaws.com/wefemabeni/56852449022.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_off0000f93e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF93E 5504 bytes
SHA-256: 838f5bdb8bf86c739e12d3eebc9f7208a801d5c8a4621fcef458cef586a41a02
font_01_sfnt_off00010c12.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10C12 12424 bytes
SHA-256: 5944261f4b030f73f4a73296b2b296a554d4cf17f5bcb1ff61deb1c57e9917a4

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