Malicious PDF — malware analysis report

Static analysis result for SHA-256 2fe73426c9db11ef…

MALICIOUS

PDF

74.7 KB Created: 2021-02-13 11:12:01 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-18
MD5: 60919b9ee99166619b3fe2a94eb95e39 SHA-1: 2d142202c73abede8bccbbc2fe25d41a3e288392 SHA-256: 2fe73426c9db11ef84073a921aa216cf9744404148dbabd5bc8322cc7a60cf90
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 0.9998

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://druttle.ru/123?utm_term=ohio+basement+systems+twinsburg+oh PDF link annotation
    • https://cdn.sqhk.co/puvegipuros/fHhejco/walking_dead_world_beyond_cast.pdfIn PDF document text
    • http://zanartcc.net/balance_sheet_meaning_and_definitione3kt5.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4392237/normal_6022d17f227fd.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4444378/normal_5fcaf951cb1c4.pdfIn PDF document text
    • http://linogozajasupe.22web.org/order_of_operations_integers_worksheet.pdfIn PDF document text
    • https://cdn.sqhk.co/pegipoveridi/gijicgd/cow_jump_over_the_moon_lyrics.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4366647/normal_5fe3bfe1b897c.pdfIn PDF document text
    • https://cdn.sqhk.co/jevamivuvugi/ahahco2/15634705695.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4477655/normal_600499a29248a.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/kakekojezutok/95124512294.pdfIn PDF document text
    • https://s3.amazonaws.com/penefelomiju/kagik.pdfIn PDF document text
    • http://tubusivi.rf.gd/descargar_whatsapp_plus_version_6._85_apk.pdfIn PDF document text
    • http://mesesoriran.epizy.com/povatositazobapad.pdfIn PDF document text
    • https://s3.amazonaws.com/jifedefujodu/html5_portfolio_template_responsive.pdfIn PDF document text
    • https://s3.amazonaws.com/bulujono/wugosusorufuxoguvesofi.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000da68.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDA68 5312 bytes
SHA-256: 16484fa9433db64f5f5cdd60b08e35d06f8124a42be09e64d17f9492922f1f96
font_01_sfnt_off0000ec5d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEC5D 10392 bytes
SHA-256: 4e357c91f612b640ad119edd67c91888f90b4cb5bc3d26c73406dbae07bbb015
font_02_sfnt_off00010ff6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10FF6 4324 bytes
SHA-256: 4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3

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