Malicious PDF — malware analysis report

Static analysis result for SHA-256 687bcee9700dde62…

MALICIOUS

PDF

61.1 KB Created: 2021-03-15 14:23:51 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-18
MD5: cf57aec957121c25b739f81aa73a3244 SHA-1: 7044ace163f2e4d708650250ec83b9557d5e0c39 SHA-256: 687bcee9700dde620db5be992a5fa963e12a231396294a88be81f617a4654fe9
94 Risk Score

Malware Insights

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

The file is a PDF document identified as malicious by ClamAV and an ML classifier. It contains an embedded URI pointing to a suspicious domain, which is likely part of a phishing or redirection scheme. The document body, though heavily obfuscated, suggests a lure related to educational materials to entice users to click the malicious link.

Machine Learning

  • Nyx PDF Classifier malicious score 0.6876

Heuristics 3

  • 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
  • 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://gimoguvi.ru/award?keyword=new+english+file+oxford+beginner+pdf PDF link annotation
    • http://idealslimitalia-ufficiale.site/930048915092bmb6.pdfIn PDF document text
    • http://liolika-rsya.ru/liftmaster_error_codes_10_flashes3o562.pdfIn PDF document text
    • http://legiontry.online/friedrich_nietzsche_god_is_dead_book6e6ei.pdfIn PDF document text
    • https://cdn.sqhk.co/bafaluminowi/buIibFv/wesubebap.pdfIn PDF document text
    • https://cdn.sqhk.co/wuzomowa/heihRjg/carmichael_weather_report.pdfIn PDF document text
    • http://milanbeachs.space/kibizokifomul0tide.pdfIn PDF document text
    • http://bagerisevi.scienceontheweb.net/gotuderawase.pdfIn PDF document text
    • http://jisuvakuwiraza.medianewsonline.com/11175190589.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/rivazixexuguri/all_rounder_telugu_movie_naa_songs.pdfIn PDF document text
    • https://s3.amazonaws.com/varolexexus/monosacaridos_polisacaridos_y_disacaridos.pdfIn PDF document text
    • https://s3.amazonaws.com/guvovigo/22138652999.pdfIn PDF document text
    • https://s3.amazonaws.com/fotepopunaj/free_guided_tour_krakow.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/bdcb6f95-a603-46b6-8475-ab26e9c02dc2/lawodokikabewaxakefiw.pdfIn PDF document text
    • http://nejesezape.myartsonline.com/how_to_write_23_hundredths_in_decimal_notation.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/31d68ab6-a02e-4b85-9517-7165c50ce326/lagemuxikaguwiwolejobox.pdfIn PDF document text
    • https://s3.amazonaws.com/dotivaf/29868462384.pdfIn PDF document text
    • https://s3.amazonaws.com/zebarufuridorur/hayward_pool_heaters_for_inground_pools.pdfIn PDF document text
    • https://s3.amazonaws.com/zuguvoxoki/vusozubivejep.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e054baa4-a825-42d8-a7ab-5d791932ed73/hamlet_1996_movie_free_download.pdfIn PDF document text
    • http://raxajabidadida.onlinewebshop.net/the_holy_quran_book.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/83baba90-3300-48f5-91da-4c5884707ce9/how_do_i_hook_up_wireless_headphones_to_my_tv.pdfIn PDF document text
    • https://s3.amazonaws.com/nonipesikiri/le_chatelier_s_principle_lab_answers.pdfIn PDF document text
    • https://s3.amazonaws.com/xeroguru/58381207066.pdfIn PDF document text
    • https://s3.amazonaws.com/rirusozo/classroom_language_poster.pdfIn PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000de1d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDE1D 5360 bytes
SHA-256: 843b59bb36e2a320d126570fdd1cea50236ddb6987aba207a4da11add61d37fc