Malicious PDF — malware analysis report

Static analysis result for SHA-256 9c8eeb1bc982318f…

MALICIOUS

PDF

76.3 KB Created: 2021-02-20 17:50:29 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-18
MD5: e0916de08e29175502b4e6ce56105dff SHA-1: 39cd46421008c3317bae920735c9136fa2e6ed26 SHA-256: 9c8eeb1bc982318fa4bc5e43c935318f20d05af4800f233652622a365d74fcbb
96 Risk Score
Tags
free-cdn-ebook-manual-lure

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 0.9998

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://jottigo.ru/strik?utm_term=what+are+the+3+management+styles PDF link annotation
    • http://nakanilo.club/tunutojuzonepagivebawuruy6oh4.pdfIn PDF document text
    • http://santand-es.com/rozopulokujxyxg1.pdfIn PDF document text
    • http://adanakebap.org/93461517423l9v3y.pdfIn PDF document text
    • http://busurman.space/retroarch_download_cheats_failedmndgj.pdfIn PDF document text
    • http://hydrofthol.space/personification_in_literature_worksheet_answersys1h6.pdfIn PDF document text
    • http://reabook.online/skype_free_latest_version_2019ox632.pdfIn PDF document text
    • http://kapusta.pro/32645960095yjcyv.pdfIn PDF document text
    • https://cdn.sqhk.co/jovowosifo/joMx28v/piselulijibarazomijit.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4417986/normal_600e4d1cd3117.pdfIn PDF document text
    • http://freefire-gifts.com/clinical_biochemistry_case_studies_with_answersdfcfp.pdfIn PDF document text
    • https://cdn.sqhk.co/kevapaboxer/ibNlrzK/red_alert_3_online_game_for_free.pdfIn PDF document text
    • https://cdn.sqhk.co/fapiwejagiz/IfjcK7F/86223844086.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/lezopobigeza/1140710604.pdfIn PDF document text
    • https://s3.amazonaws.com/legipalofi/dofiva.pdfIn PDF document text
    • https://s3.amazonaws.com/zepifudoxapo/camera_raw_10._5_mac.pdfIn PDF document text
    • https://s3.amazonaws.com/sesijesule/behance_apk_free.pdfIn PDF document text
    • https://s3.amazonaws.com/tawosutosuxi/piboxakazopodofivugajenin.pdfIn PDF document text
    • https://s3.amazonaws.com/wufujudisu/figifewafegu.pdfIn PDF document text
    • https://s3.amazonaws.com/vososasoxumete/apple_carplay_and_android_auto_dongle.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_off0000ed1b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xED1B 5376 bytes
SHA-256: 96d0268d9f43af83a18e741cb30e58580a4de9a4f62a9251b057a4aa08a6e509
font_01_sfnt_off0000ff4f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFF4F 10756 bytes
SHA-256: 115149f9b73fa4894ebf1d0a9de8c5a316dd19a140f101c0f3bbf1f4a21175b0

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