Malicious PDF — malware analysis report

Static analysis result for SHA-256 96ac2a9ca6e63aa8…

MALICIOUS

PDF

77.8 KB Created: 2021-03-24 11:47:04 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-24
MD5: c31b31eb319034881463583279e016c2 SHA-1: 2a048489e2638cb09a46969558d117ca91dfc268 SHA-256: 96ac2a9ca6e63aa8ee556a822201904e3acfa64ba5ed40a2ee746ca87a67c239
96 Risk Score

Malware Insights

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

The PDF file was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains an embedded URI pointing to a suspicious domain, "lozipotod.ru", which is presented as a search result for a specific query. This suggests a phishing or social engineering attack aimed at tricking the user into visiting the malicious URL.

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://lozipotod.ru/award?keyword=childhood+functional+gastrointestinal+disorders+pdf PDF link annotation
    • http://sodahq.pro/zadopesagupemuwire8zq.pdfIn PDF document text
    • http://levantemosaic.com/727269116322eupt.pdfIn PDF document text
    • http://krepezh.guru/botadixetem8l6d.pdfIn PDF document text
    • http://fasadi.site/epson_ink_pad_reset_utility_l380gs5vz.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4476751/normal_600549eba7a0e.pdfIn PDF document text
    • https://cdn.sqhk.co/wodabakope/hrWiecA/motorola_razr_flip_phone_review.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4372719/normal_6011b6ac9232b.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4378857/normal_5fcc611765f27.pdfIn PDF document text
    • http://rating-bookmaker.ru/how_to_clean_the_keurig_2.0_needlenpp74.pdfIn PDF document text
    • https://cdn.sqhk.co/busibelifiv/PihRwie/88789001208.pdfIn PDF document text
    • https://cdn.sqhk.co/funixatugesi/JhhAgfr/ted_esl_worksheets.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4402504/normal_5fd5f3644d1d3.pdfIn PDF document text
    • https://cdn.sqhk.co/verexoleki/5nhdnib/spider_stickman_dismounting_cheats.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/genukopapovixo/1064570464.pdfIn PDF document text
    • https://s3.amazonaws.com/gowupuzokowuxes/fuximudukubukujivowifizeg.pdfIn PDF document text
    • https://s3.amazonaws.com/zuvovoxigumuz/intensive_pronouns_worksheet_6th_grade.pdfIn PDF document text
    • https://s3.amazonaws.com/galinikagopit/rokizemet.pdfIn PDF document text
    • https://s3.amazonaws.com/vifusupegiza/gabaperabudetijodimufexeb.pdfIn PDF document text
    • https://s3.amazonaws.com/dugibabafod/88861134984.pdfIn PDF document text
    • https://s3.amazonaws.com/napoledunadigo/laserjet_pro_400_user_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/zinudipir/71290855544.pdfIn PDF document text
    • https://s3.amazonaws.com/baxegezivumi/gujexazoxebowifoz.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_off0000f268.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF268 5320 bytes
SHA-256: 2ef04a5723c9fd102f7a7ac4da86161f2cc30806eb3e7012fd0bdd57ec7d67ca
font_01_sfnt_off00010478.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10478 10884 bytes
SHA-256: 8746e7928ce8bafa9e674138db5f81fbf84554ba07451fd1bb243abf200e7c23

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