Malicious PDF — malware analysis report

Static analysis result for SHA-256 3365fa9d42188b64…

MALICIOUS

PDF

79.1 KB Created: 2021-03-11 04:50:57 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-23
MD5: 20ef0afb2fa35cd2c5d388d31a044f8b SHA-1: 20a1dc797074c41f98c462a0c3f64f557ed8986f SHA-256: 3365fa9d42188b64d45e5e3c9380f3d025f0b2256f4d31368cf37772ef4449e3
96 Risk Score

Malware Insights

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

The PDF contains an embedded URI that redirects to a URL masquerading as a search result. This URL is likely part of a phishing or malware distribution scheme. The ML classifier and ClamAV detection strongly indicate malicious intent, likely related to phishing or trojan delivery.

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://xajibur.ru/wb?keyword=can%20you%20override%20a%20motion%20sensor%20light PDF link annotation
    • https://cdn.sqhk.co/sezabaxo/Uieduhe/miraculous_ladybug_season_3.pdfIn PDF document text
    • https://cdn.sqhk.co/lofesaxudiwo/Tgd4t8l/wujizan.pdfIn PDF document text
    • https://cdn.sqhk.co/jojevirelo/ejlkThh/rubber_duck_ringtone.pdfIn PDF document text
    • https://cdn.sqhk.co/xevowuto/fFuHibZ/wordscapes_level_10407.pdfIn PDF document text
    • https://cdn.sqhk.co/repipedifavi/gh6manS/49361645803.pdfIn PDF document text
    • https://cdn.sqhk.co/kagaxavog/9jha4jc/62184000767.pdfIn PDF document text
    • https://cdn.sqhk.co/vitimosugu/yBpibib/xukezedexevijelosux.pdfIn PDF document text
    • https://cdn.sqhk.co/lijusute/cibnZJO/vlinder_girl_dress_up_games_avatar_creator.pdfIn PDF document text
    • https://cdn.sqhk.co/mivadunoxo/7jjZhiv/4253410791.pdfIn PDF document text
    • https://cdn.sqhk.co/wituwuxevef/iexKBUi/ludo_star_2_online_laptop.pdfIn PDF document text
    • https://cdn.sqhk.co/karadirimose/gewhfex/limibil.pdfIn PDF document text
    • https://cdn.sqhk.co/xizefonuma/DTm3ih5/87711572292.pdfIn PDF document text
    • http://kitukotobov.medianewsonline.com/kegisexagebijuxurebasujik.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://wulibazosuxib.onlinewebshop.net/lawn_boy_10685_troubleshooting.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0e2be0f3-9eb0-4b37-b125-1b0ec85ebdb0/why_does_my_smoke_detector_keeps_chirping.pdfIn PDF document text
    • http://tulajadulixo.myartsonline.com/how_to_learn_krav_maga_by_yourself.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/19d2e3dc-39a7-4a38-a08a-911072c3123b/nespresso_en750.mb_lattissima_pro_by_delonghi_review.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_off0000f723.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF723 5304 bytes
SHA-256: 3fc6693dcf2ccb57fdf7defecc20b518f0c4b850c3e4e3ea003b375c6c1c50fb
font_01_sfnt_off00010908.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10908 11176 bytes
SHA-256: c96a4dcdc1739d87d8ea808eef60a014902d772d9e2f5a1292ec33626d68506a

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