Malicious PDF — malware analysis report

Static analysis result for SHA-256 7289ab039a15cdf4…

MALICIOUS

PDF

67.5 KB Created: 2021-03-03 22:39:37 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-06-13
MD5: 27a526ffb50470c3cedfc04896474c94 SHA-1: 6131426ea22631512d83c07607e4b80e4fcc0219 SHA-256: 7289ab039a15cdf43b2f0e8bffe40af79e02b823157cbf880c83919e0450b05f
96 Risk Score

Malware Insights

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

The file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains embedded URLs pointing to potentially malicious content, suggesting a phishing or credential harvesting attempt. The presence of PDF-specific heuristics further supports its classification as a malicious PDF.

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://nipisod.ru/wix?keyword=nintendo+wii+operations+manual PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4407314/normal_5ffe21dd52eea.pdfIn PDF document text
    • http://love-cosmetics.shop/extraction_of_actinideszle12.pdfIn PDF document text
    • https://cdn.sqhk.co/vasozaponem/OhiPigT/world_war_1_and_2_movies.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4413458/normal_5fc69876cc318.pdfIn PDF document text
    • https://cdn.sqhk.co/xuluriwu/mieijBs/car_light_color_changer_app.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4493200/normal_5ffe7a71d0d7e.pdfIn PDF document text
    • http://hh666o.site/fabedujojolb2htg.pdfIn PDF document text
    • http://electorat.org/bryant_furnace_codes_127wif2.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4478383/normal_60314a0b8367c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4471996/normal_601b9aff1b6cc.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4466391/normal_5feb7f94e9aa1.pdfIn PDF document text
    • https://cdn.sqhk.co/gimexigerub/mHtajjf/gowuduseforofude.pdfIn PDF document text
    • https://cdn.sqhk.co/posebozej/acRheFH/bein_sports_connect_roku_login_error.pdfIn PDF document text
    • http://copyright-central-media.com/51312631596q1pe1.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/nilititonawafim/clash_of_clans_online_game_no.pdfIn PDF document text
    • https://s3.amazonaws.com/dabatisew/spelling_bee_words_2017.pdfIn PDF document text
    • http://runatavakez.epizy.com/factual_report_writing.pdfIn PDF document text
    • http://jilerixam.epizy.com/developer_options_android_tutorial.pdfIn PDF document text
    • https://s3.amazonaws.com/kudefem/gypsy_season_1_parents_guide.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_off0000cb45.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCB45 5168 bytes
SHA-256: 3b923d7104a2db0485bcc1c6d84ff1670b1668224d4f6e8d0f02f2509bd0d3e6
font_01_sfnt_off0000dcd4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDCD4 10568 bytes
SHA-256: fa13a7d17e2e5eb6423db8fb07eccdc887eb4caef1068841451a74d115ba3a65

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