Malicious PDF — malware analysis report

Static analysis result for SHA-256 214a9827fc34da2a…

MALICIOUS

PDF

102.6 KB Created: 2021-03-25 15:11:14 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-07-07
MD5: b0d86d5439fb363202ea9b0b2e8db7e0 SHA-1: 31975d24778d6ff1c34362b06b7c889323978b24 SHA-256: 214a9827fc34da2a847c5f985b9bfa42eb2d12d786c37418df373287e663bf45
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URI that directs the user to a suspicious URL, likely for phishing or malware distribution. The ML classifier and ClamAV detection strongly indicate malicious intent. Although no scripts were explicitly extracted, the presence of external URIs within a PDF, coupled with high-risk heuristics, suggests an attempt to trick the user into downloading a malicious payload or visiting a phishing site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

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://xezojetit.ru/123?utm_term=carbohydrates+short+notes+pdf PDF link annotation
    • http://eurostore.info/no_place_to_hide_movie_1973npo2l.pdfIn PDF document text
    • http://firstdoctor.xyz/chain_reaction_game_show_2020s00bw.pdfIn PDF document text
    • https://cdn.sqhk.co/japivuwali/igd24bC/nhl_hockey_teams_near_me.pdfIn PDF document text
    • https://cdn.sqhk.co/jufebarur/gfihihh/16157213508.pdfIn PDF document text
    • http://sibiwuketilivi.22web.org/lupefirerike.pdfIn PDF document text
    • http://autokenn.com/bear_outbreak_owners_manualq0t8g.pdfIn PDF document text
    • http://instasurprise.online/53291925005mtkx6.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4411229/normal_601671fa26582.pdfIn PDF document text
    • https://cdn.sqhk.co/fafujedajir/hiCwIgi/71223851045.pdfIn PDF document text
    • https://cdn.sqhk.co/balaragu/ghd2JOy/mobudunudinugajuk.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4490754/normal_6052345fa53c4.pdfIn PDF document text
    • http://paypallsecurity.com/denon_avr_3808_subwooferjy6n1.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4375507/normal_5ffeb4b047b77.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/fupanabivote/lodilujo.pdfIn PDF document text
    • https://s3.amazonaws.com/fupanabivote/55459105653.pdfIn PDF document text
    • https://044e8d80-c429-4a1f-820d-9b443c65b389.filesusr.com/ugd/53c654_8c6c22f8864b467c8d8aac1fbcf5dec1.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/ropidadegaxut/predicative_and_attributive_adjectives_worksheet.pdfIn PDF document text
    • https://46d16763-6c5f-4e19-aa2c-3f4071fcbec2.filesusr.com/ugd/26f730_7d2fc49e1d354f15a0d8f2a5a3160128.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/ruzumeb/11321800363.pdfIn PDF document text
    • https://77bac38d-831a-46d6-8f22-d7743fcadc58.filesusr.com/ugd/5b9a87_18825f2ce54349d18bb9dc5254c6a9fe.pdf?index=trueIn PDF document text
    • https://43cb2d18-1589-43a7-b1c5-fe1278e1c76d.filesusr.com/ugd/370b54_48c532821baf4ac3b77ef248f081464c.pdf?index=trueIn PDF document text
    • http://tajuvajewebu.epizy.com/fovununez.pdfIn PDF document text
    • http://fimokixavojakuf.epizy.com/muzerujamizig.pdfIn PDF document text
    • https://57fc24c6-ba7c-430a-bdae-05304608b610.filesusr.com/ugd/bc9c68_51bc4500e45744f1adda6d82ae72da65.pdf?index=trueIn 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_off00014e48.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x14E48 5244 bytes
SHA-256: 9b0323aa7508bd152c62b731734581cd3fca42ad4c00326070b7155608369b58
font_01_sfnt_off00016014.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x16014 13760 bytes
SHA-256: 0e71d09bb5cf18f3a797992462d394dc9446afc9cf5028ddd847b6bd982662e9

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