Malicious PDF — malware analysis report

Static analysis result for SHA-256 2d010c7b4bb814b5…

MALICIOUS

PDF

75.7 KB Created: 2021-04-19 04:45:53 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: e1a3df7421e4df5db577ab0aaafd92ed SHA-1: 3a13bc940b1c6e51c71cc6aa4d5f0c8e2fa5d23a SHA-256: 2d010c7b4bb814b54b28dfc56ee8d99aec4cc8475f09fe1f391a276e769b5988
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URL that points to a domain associated with malicious activity, as indicated by heuristic firings and ClamAV detection. The document body, though heavily obfuscated, appears to reference a printer error code, suggesting a lure to trick users into visiting the malicious URL. No scripts were extracted from this sample, but the presence of an external URI and the ML classifier output strongly suggest a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://jumiwimov.ru/strik?utm_term=canon+mx922+b200+error+code+fix
    • http://bikejesoxatelo.mygamesonline.org/figerobejafotu.pdf
    • http://wibetunutivemi.iblogger.org/maforoxowuvudelikevato.pdf
    • http://ninudogexefeg.22web.org/karuveju.pdf
    • http://numidib.22web.org/foviwetetifusew.pdf
    • https://cdn-cms.f-static.net/uploads/4452376/normal_605b8e1280a5d.pdf
    • http://dejepuzalew.mygamesonline.org/12537532684.pdf
    • http://fakts.design/love_ringtones_free_download_for_mobile_mp3_teluguosm0u.pdf
    • https://static.s123-cdn-static.com/uploads/4374188/normal_60060e5d5007b.pdf
    • http://nipijimosobolem.mypressonline.com/feruxaxujebinipujunetod.pdf
    • http://nudistoff.club/84411302192obosx.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://tipakixulo.rf.gd/label_templates_10_per_sheet_avery.pdf
    • http://zegokufa.epizy.com/fovanujuv.pdf
    • http://gaxodusipif.epizy.com/ieee_integration_test_plan_template.pdf
    • http://pabewuvuxaf.onlinewebshop.net/wd_my_passport_wireless_pro_user_manual.pdf
    • https://s3.amazonaws.com/nelizenejakarug/vitavixotuvorupivifaberi.pdf
    • http://vopimivukaf.epizy.com/word_document_to_converter_for_windows_7_free_download.pdf
    • http://sobavetugobi.epizy.com/sojuverojunisibidi.pdf
    • http://gujimosodaza.myartsonline.com/zowaju.pdf
    • https://s3.amazonaws.com/bogijexu/is_liftmaster_compatible_with_craftsman.pdf
    • https://s3.amazonaws.com/xomudufe/wu_tang_an_american_saga_cast_dennis.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ea24.bin
7d7e90487ea3d8ff47fa4fa5730f3b7d6fcc9df43d28e8ed9a28bd7e62869c31		 pdf-font-stream PDF embedded font (sfnt) at offset 0xEA24 5500 bytes
font_01_sfnt_off0000fcc1.bin
b54fb93ec9cb609f36d9687080fbb065387c0c0d3ab04c966f165fe9863496b4		 pdf-font-stream PDF embedded font (sfnt) at offset 0xFCC1 10816 bytes

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