Malicious PDF — malware analysis report

Static analysis result for SHA-256 8d954b047394d4b2…

MALICIOUS

PDF

66.6 KB Created: 2021-03-02 06:43:47 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-03
MD5: e9797bfbe5456e227ff60570329fe0ff SHA-1: 6843f9eb8e4a63d51b121222608a30a570b95b34 SHA-256: 8d954b047394d4b27bbfacd0570204dec8ad4552576b917a2c286f95b953c0c4
96 Risk Score

Malware Insights

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

The PDF file was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing trojan. It contains an embedded URI pointing to a suspicious domain, which is likely part of a phishing or malware distribution scheme. Although no scripts were explicitly extracted, the PDF structure and embedded URIs suggest an attempt to redirect the user to malicious content.

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://maypoin.ru/strik?utm_term=graco+magnum+pro+x7+rebuild+kit PDF link annotation
    • http://pawomodom.medianewsonline.com/blank_employee_timesheet_template.pdfIn PDF document text
    • https://cdn.sqhk.co/zanuvajebodu/4Cjdtrx/66014617318.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4379606/normal_5ff5c3bd28964.pdfIn PDF document text
    • https://cdn.sqhk.co/tipusuzog/DNRTjgt/grand_theft_auto_5_cheat_codes_weapons_ps4.pdfIn PDF document text
    • https://cdn.sqhk.co/kokuxisa/ghifhda/log_thrower_mod_apk_an1.pdfIn PDF document text
    • https://cdn.sqhk.co/konanetufuda/cjaW0uQ/united_states_random_chat.pdfIn PDF document text
    • https://cdn.sqhk.co/nofoxanu/dvE5iej/sirocco_wind_map.pdfIn PDF document text
    • https://cdn.sqhk.co/kebisozakola/gifgcbR/xiwisitur.pdfIn PDF document text
    • https://cdn.sqhk.co/lutumodigi/JThehia/fozudubiko.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4499629/normal_5fcc1624a4a10.pdfIn PDF document text
    • https://cdn.sqhk.co/nodewanase/Cijc8Hn/65795233418.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://rurobudono.rf.gd/psychometric_tests_for_dummies.pdfIn PDF document text
    • http://difesasud.epizy.com/zukutenogiwekikiviramaso.pdfIn PDF document text
    • http://luralopanatu.rf.gd/perfume_the_story_of_a_murderer_2006_hindi_dubbed_dual_audio.pdfIn PDF document text
    • http://davinawoguzag.atwebpages.com/moodle_agrupamento_fernando_casimiro_pereira_da_silva.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_off0000c6cf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC6CF 5600 bytes
SHA-256: c6f2e8f775a5046afedce56fe99f4eaf67b68033f7a43e6104f682b0eca5e4b9
font_01_sfnt_off0000d9cd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD9CD 10504 bytes
SHA-256: 0992dda739c145a9a65f9439bd1161c097fbec8847c4d178792850f18c9e3634

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