Malicious PDF — malware analysis report

Static analysis result for SHA-256 fc5bc5a14ad533e5…

MALICIOUS

PDF

75.7 KB Created: 2021-02-28 18:51:28 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-22
MD5: ba10b4264da88007b1d7f7eecf55df7b SHA-1: 22013cd0934e93c6a650b666bcfacefbaac71dd9 SHA-256: fc5bc5a14ad533e587469d900133125250698814166a68cb0c0146879668f9c5
96 Risk Score

Malware Insights

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

This PDF file was flagged as malicious by a machine learning classifier and ClamAV, indicating a high likelihood of malicious intent. It contains an embedded URI pointing to a suspicious domain, which is likely part of a phishing or malware distribution scheme. The document body, though partially corrupted, suggests a lure related to 'Discovery objections cheat sheet ohio', aiming to trick users into clicking the malicious link.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://xezojetit.ru/123?utm_term=discovery+objections+cheat+sheet+ohio PDF link annotation
    • http://lojasamericanasbr.com/gypsum_ceiling_installation_guidehx097.pdfIn PDF document text
    • https://cdn.sqhk.co/zukasedu/XhhWXje/download_robot_superhero_champions_mod_apk.pdfIn PDF document text
    • http://vknart.xyz/848748516674ogh9.pdfIn PDF document text
    • https://cdn.sqhk.co/nufesewepi/M1Wjbgd/6321938862.pdfIn PDF document text
    • https://cdn.sqhk.co/gogojiranat/zOgiIJG/kabapiwivimomopirodo.pdfIn PDF document text
    • http://ketosimple.online/apprenticeship_levy_training_provider_guider08am.pdfIn PDF document text
    • https://cdn.sqhk.co/gonolesuzam/jxjKia7/pew_pew_waves_in_spaceships.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
    • http://zusirutovazume.epizy.com/jimekawimamozawunevi.pdfIn PDF document text
    • https://s3.amazonaws.com/napoledunadigo/ishihara_colour_chart.pdfIn PDF document text
    • https://s3.amazonaws.com/zunaduxa/82276902193.pdfIn PDF document text
    • https://s3.amazonaws.com/xewamejixolefaj/fabiluwaguligusiful.pdfIn PDF document text
    • http://jonokib.rf.gd/el_atravesado_andres_caicedo_gratis.pdfIn PDF document text
    • http://peburameg.epizy.com/89609716114.pdfIn PDF document text
    • https://s3.amazonaws.com/davubewu/barclays_new_business_account_forms.pdfIn PDF document text
    • http://sinepuguxokaza.rf.gd/singer_promise_1409_troubleshooting.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_off0000dd66.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDD66 5020 bytes
SHA-256: 4733d8155342e5bc8d9bbefc5dec3b247023b25c6284576738d46479e52d6e9f
font_01_sfnt_off0000ee7a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEE7A 10796 bytes
SHA-256: dc424ef59d7a64770936471071aa4b9013d2309da57c5a60cb04f7d986701fb4
font_02_sfnt_off0001135d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1135D 4324 bytes
SHA-256: 05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176

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