Malicious PDF — malware analysis report

Static analysis result for SHA-256 94e15fa74bb6c818…

MALICIOUS

PDF

77.2 KB Created: 2021-04-07 10:26:59 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-24
MD5: 368c7ba2552e0fc22ff17934e9cdb574 SHA-1: b14eef416709126ba0a639b8823ede28a52ee896 SHA-256: 94e15fa74bb6c81817c882b370d41b50013c337cd3caef55638b41ee1ebf2953
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://druttle.ru/strik?utm_term=holt+handbook+grammar+usage+mechanics+sentences+third+course+answer+key PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4465025/normal_5fd77b6002320.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369165/normal_605fa77eb62c3.pdfIn PDF document text
    • https://cdn.sqhk.co/zaliroded/jgiAEUu/ps1_emulator_for_pc_windows_7_free_download.pdfIn PDF document text
    • https://cdn.sqhk.co/zogobadakedu/dIYc0gj/roxovupiwirafap.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4376359/normal_604e299b36d70.pdfIn PDF document text
    • https://cdn.sqhk.co/dogilijesiwu/ciaeYjd/fifa_world_cup_2019_standings_wiki.pdfIn PDF document text
    • https://cdn.sqhk.co/dilizilozok/AtjbigO/68105685378.pdfIn PDF document text
    • https://cdn.sqhk.co/vipotukivisi/K4jgfQm/holiday_gift_card_template_free.pdfIn PDF document text
    • https://cdn.sqhk.co/dagosasojo/gfAMhaz/wumujewokiliwulib.pdfIn PDF document text
    • https://cdn.sqhk.co/fusajovogi/ifxhugj/fufevamuwudajow.pdfIn PDF document text
    • https://cdn.sqhk.co/pumopivosoba/cmxHenk/94689533487.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4409621/normal_6002b0c4375cb.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4464065/normal_602abe70c9abe.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4380543/normal_5fec12b8a4b95.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4475580/normal_5fc98b3670569.pdfIn PDF document text
    • https://cdn.sqhk.co/dijabidasu/Cgghjgh/five_nights_at_freddy_s_2_song_chords.pdfIn PDF document text
    • https://cdn.sqhk.co/loxinesupiva/c6giidD/844011565.pdfIn PDF document text
    • http://gopadaxin.mywebcommunity.org/certificado_medico_bolivia.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://lofunadex.myartsonline.com/75829778845.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3d847b6b-111c-4b11-b94e-1d40d6b9d54a/29711929953.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6f4c8a98-c80c-45df-91ae-370a84a6aed1/kanogazisejej.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5a619104-0b32-4f2f-9fd4-02998dbc7d48/how_much_does_a_heating_and_air_conditioning_technician_make_a_year.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_off0000eab8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEAB8 5712 bytes
SHA-256: 165db19f066ca49b6fe7a999847a3acc84400d911a5120ec0804218173951395
font_01_sfnt_off0000fe0f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFE0F 11376 bytes
SHA-256: 2695567e9a6ff79176033dc853350cb4c2b1e54598e0dd14dd20cb4e4283341a

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