Malicious PDF — malware analysis report

Static analysis result for SHA-256 5865d5f627677c69…

MALICIOUS

PDF

85.6 KB Created: 2021-04-30 06:02:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 8844f6fcb8d3497e701d2580c454ef07 SHA-1: f86350da1f2c353b84b5c9e0608815a8d6bfc743 SHA-256: 5865d5f627677c6928b137a14fa459bc5ebac6ee49db9f2af41ab1e26f27b1c0
96 Risk Score

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 0.9996

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://lozipotod.ru/strik?utm_term=how+did+madame+bovary+kill+herself PDF link annotation
    • https://renobikedasel.weebly.com/uploads/1/3/4/8/134897329/janevi_palokilijigobe_rarekubumifiv.pdfIn PDF document text
    • https://nudegono.weebly.com/uploads/1/3/4/6/134682657/3186034.pdfIn PDF document text
    • https://cdn.sqhk.co/nedabuke/hgeXjcF/maromexigizusuji.pdfIn PDF document text
    • https://cdn.sqhk.co/lowepoxiro/aPl0hiJ/85268967724.pdfIn PDF document text
    • https://cdn.sqhk.co/dagosasojo/fQJiejd/33416298852.pdfIn PDF document text
    • https://kobamewimituk.weebly.com/uploads/1/3/1/6/131606733/e417aa.pdfIn PDF document text
    • https://zimegusak.weebly.com/uploads/1/3/4/6/134605775/xipaxabunopitotev.pdfIn PDF document text
    • https://cdn.sqhk.co/vinasujitupe/9iaCMmN/best_melee_weapon_warframe_mastery_4.pdfIn PDF document text
    • http://pozuvixa.getenjoyment.net/virology_carter_center.pdfIn PDF document text
    • https://feliwisinawo.weebly.com/uploads/1/3/1/8/131856919/3053305.pdfIn PDF document text
    • http://zagavexakagin.mypressonline.com/back_end_development_tutorial.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://59b7e61f-9850-45ee-add2-e9646db267e4.filesusr.com/ugd/5b9365_9013f8ca449e43eb9702ab72308a0b43.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/pusolefosex/jujilapevanamumufiv.pdfIn PDF document text
    • https://s3.amazonaws.com/zaxawetawupo/dopunuzumisumukise.pdfIn PDF document text
    • https://s3.amazonaws.com/legobegutulo/isg_international_business_school_tuition_fees.pdfIn PDF document text
    • https://s3.amazonaws.com/xasovewipeje/25476832512.pdfIn PDF document text
    • https://eb62986f-0112-409a-9ebe-777412bc5c19.filesusr.com/ugd/26938b_faa0c439b4264e74b9e145766aa5eb71.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/tutapaxi/niwuzeturuwepak.pdfIn PDF document text
    • https://s3.amazonaws.com/jarawaxanivu/lubofuwat.pdfIn PDF document text
    • https://50e0a74f-e7a5-4ac3-a7a6-4cdd7b1ad00e.filesusr.com/ugd/8a9d9f_237c126a52ae4168903159ddb9973d94.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/xugigabitulu/17432044412.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_off000111c1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x111C1 5564 bytes
SHA-256: 263da260c79d651f92fa294c035e2a57054515a56983f3447b5f0782d5f017dc
font_01_sfnt_off00012497.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12497 10604 bytes
SHA-256: 49067a410905cefb35d5f6386c920f89b627dffca9499e2e6e1c83d76f502c54

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