Malicious PDF — malware analysis report

Static analysis result for SHA-256 f6687e5d6364be6d…

MALICIOUS

PDF

73.0 KB Created: 2021-03-30 21:47:02 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-22
MD5: 18aa29fd68d35e498fd0105b4ea122c6 SHA-1: 929849b7a8433c870ed78cac867419cf0398694e SHA-256: f6687e5d6364be6d1eb1fa88d2de5bf452a11d26150eb06c6412fb53ec7f3698
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-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://pelibifir.ru/123?utm_term=alphabet+phonics+sounds PDF link annotation
    • http://turiwovezaz.iblogger.org/workforce_planning_deloitte.pdfIn PDF document text
    • http://supernefritroller.xyz/maserati_granturismo_sport_maintenance_cost4c780.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4468827/normal_6035bd5f655c7.pdfIn PDF document text
    • http://legendarycraft.ru/drow_of_the_underdark_featsyqrcu.pdfIn PDF document text
    • http://likelid.xyz/staying_alive_kate_gregorevic_reviews09ear.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4391340/normal_5fe32d609ac79.pdfIn PDF document text
    • http://coins24h.com/662607090620mxnt.pdfIn PDF document text
    • http://tujomof.22web.org/sony_bdp-s590_service_manual.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4424682/normal_605600f808163.pdfIn PDF document text
    • http://itanah.space/junesa3a537.pdfIn PDF document text
    • http://sq11mini.com/77666017479lu6cc.pdfIn PDF document text
    • http://ru-en.xyz/resonance_repatterningc4sq1.pdfIn PDF document text
    • http://makedctl.site/2013_dodge_charger_police_0-609eoj4.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4458625/normal_60394528583a8.pdfIn PDF document text
    • http://tajupodibo.iblogger.org/6634131748.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/gupojakami/ada_ada_song_from_raja_rani.pdfIn PDF document text
    • https://s3.amazonaws.com/redegelesibif/45300656162.pdfIn PDF document text
    • https://s3.amazonaws.com/geradi/aadukalam_bgm_cut_song.pdfIn PDF document text
    • https://s3.amazonaws.com/woneketelak/free_iroko_tv_movies.pdfIn PDF document text
    • https://s3.amazonaws.com/padadutiseni/android_floating_action_button_image_size.pdfIn PDF document text
    • https://s3.amazonaws.com/sogovekevi/does_canon_mg3050_support_airprint.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_off0000de77.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDE77 5196 bytes
SHA-256: 494f172c829bf5ad35b855b767e5ff1f349c0987966515ab0cfa892d12b050b4
font_01_sfnt_off0000f018.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF018 11356 bytes
SHA-256: cc37062b28ccbf0175f7f5a24083c6c557d329ad0c19424289cd62bd06dd2142

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