Malicious PDF — malware analysis report

Static analysis result for SHA-256 77953e25f7f7bcbc…

MALICIOUS

PDF

65.6 KB Created: 2021-01-18 13:55:57 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-12
MD5: 387f94a81d9273cc714f12d7180b5bd9 SHA-1: 9679e9345fec1b360230506492e1fa6603a4366d SHA-256: 77953e25f7f7bcbcbc6cc6b33e0a8663d58ed71fcd1311ca9bd6dd065af7485c
96 Risk Score

Malware Insights

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

The PDF contains an embedded URI pointing to a suspicious domain, which is likely part of a phishing or malware distribution scheme. The document body, though heavily obfuscated, contains references to 'Minecraft 1.7 10 village seeds', suggesting a lure to attract users interested in gaming. The ML classifier and ClamAV detection strongly indicate malicious intent.

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://traffset.ru/123?utm_term=minecraft+1.7+10+village+seeds PDF link annotation
    • https://cdn.sqhk.co/nodewanase/d0jjghV/46900381003.pdfIn PDF document text
    • https://xixusumer.weebly.com/uploads/1/3/0/8/130814933/345b44cf874.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4417029/normal_5fc69dfc9bcce.pdfIn PDF document text
    • https://wafebunutixiwi.weebly.com/uploads/1/3/4/1/134109037/givugidutos_favejadizope_levuxipofazizut.pdfIn PDF document text
    • https://ragurukenawuxif.weebly.com/uploads/1/3/4/6/134667210/zajixemazitefo.pdfIn PDF document text
    • https://cdn.sqhk.co/bolukawet/dfsic6P/retro_city_rampage_dx_update_cia.pdfIn PDF document text
    • https://cdn.sqhk.co/zusisoko/JwhfjdP/levojuvigenesubotawafef.pdfIn PDF document text
    • https://filukekab.weebly.com/uploads/1/3/4/4/134478490/4732569.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/vovopafubipu/angular_admin_template_open_source.pdfIn PDF document text
    • http://vokunewegulu.epizy.com/air_force_exam_sample_paper.pdfIn PDF document text
    • https://s3.amazonaws.com/woxotopapozokev/katalog_exhaust_fan_panasonic.pdfIn PDF document text
    • http://zekafoweratum.epizy.com/fimibasulejegaxarofozed.pdfIn PDF document text
    • http://xibupafuvobiluk.rf.gd/diwiwijiwonerifulujolovaf.pdfIn PDF document text
    • https://s3.amazonaws.com/vuterijoze/candida_guidelines_idsa.pdfIn PDF document text
    • http://muwojes.epizy.com/mcse_interview_questions_and_answers_doc.pdfIn PDF document text
    • https://s3.amazonaws.com/wulotugadag/driver_certificado_a3_certisign.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_off0000c28c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC28C 5560 bytes
SHA-256: a25ee7caa618824c756e1b6d06f70c500247281f8adbc1b7854b803f9c125acb
font_01_sfnt_off0000d5ab.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD5AB 10532 bytes
SHA-256: 3bc50ee47f3d41d60e7b4c5218f5b2134bd0a0d269b832ca64596719748886dc

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