Malicious PDF — malware analysis report

Static analysis result for SHA-256 b916c7cb3be8b1f9…

MALICIOUS

PDF

84.4 KB Created: 2021-03-14 10:42:24 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-22
MD5: b510bdc9e89888d935fafb54b3f04915 SHA-1: 10c9ebbaa8d304e2b071261482de303562b1b765 SHA-256: b916c7cb3be8b1f9f45b15306fac152d460c9e6f6b69a97d9ac24046968e7621
96 Risk Score
Tags
free-cdn-ebook-manual-lure

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 0.9996

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://dafemum.ru/123?utm_term=chicken+invaders+5+multiplayer+same+computer PDF link annotation
    • http://manthoughtswebsite.website/wheres_waldo_scary_bookm12vg.pdfIn PDF document text
    • http://topsale.pro/toribajirigarezozizinetigcrc6.pdfIn PDF document text
    • http://copyrightsupporthelpcenter.com/que_significa_inconformidadu7haj.pdfIn PDF document text
    • http://teksol.xyz/carl_sagan_pale_blue_dot_videosxo41.pdfIn PDF document text
    • http://wegansit.space/xatofanawewovekulipifvsfl.pdfIn PDF document text
    • http://alfa-quest.ru/54083721509gzfh2.pdfIn PDF document text
    • http://ig-copyrighthelpcenter.com/15159111075wxdhn.pdfIn PDF document text
    • http://hr-insider.com/waxelolaxidiletapupigiwwavs.pdfIn PDF document text
    • http://eurofamily.pro/xelofuzabetedifuts71u.pdfIn PDF document text
    • http://aycotoro5.xyz/alex_rider_stormbreaker_movierrwir.pdfIn PDF document text
    • http://malalij.iblogger.org/here_come_the_sun_piano_sheet_music.pdfIn PDF document text
    • http://rakajipof.22web.org/bypass_proxy_android_mobile.pdfIn PDF document text
    • http://lnstagramsupportingcenter.com/kaxex53wnz.pdfIn PDF document text
    • http://kupidarinab.22web.org/which_samsung_sound_bar_is_best.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://s3.amazonaws.com/muwemivumazulax/41757201824.pdfIn PDF document text
    • https://s3.amazonaws.com/jeromopelurab/defuzusulumovaxad.pdfIn PDF document text
    • https://s3.amazonaws.com/viboxikuz/gebakewujog.pdfIn PDF document text
    • https://s3.amazonaws.com/tetofamuxulil/how_to_detox_mercury_from_the_body.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/60eb6c2b-0cb2-400c-b117-a086b888eaa0/how_to_become_a_special_ed_teacher_assistant.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/59e936dd-3fc2-44c4-b4e2-fa3bf8b97dc0/do_heaters_have_pilot_lights.pdfIn PDF document text
    • https://s3.amazonaws.com/forupokisip/14480446224.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

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ffa8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFFA8 5568 bytes
SHA-256: b0ff503782f1c808bd9a59cbdc94f3d037992211415810f3e6f0c5991a09097f
font_01_sfnt_off0001126c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1126C 10508 bytes
SHA-256: cb90ab62ae79051ba3c6af2fa7f548922170e8b0d63d8ed0fd7e4dc0ec5e00df
font_02_sfnt_off000135ff.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x135FF 4324 bytes
SHA-256: 0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333

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