Malicious PDF — malware analysis report

Static analysis result for SHA-256 67fae24e8b4bdcf9…

MALICIOUS

PDF

62.1 KB Created: 2020-12-24 10:33:02 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-02
MD5: c67c306d5319d9de9279a47d7db6a907 SHA-1: 875bbc2bc03fc4f1942e7b659f04b093f3f9f60f SHA-256: 67fae24e8b4bdcf9136734985429fad264f97937e585e604e8b92866b2bad458
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 0.9995

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://traffset.ru/123?utm_term=reggae+music+torrent+magnet PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4387811/normal_5f9509177eeb2.pdfIn PDF document text
    • https://fugopezawisobib.weebly.com/uploads/1/3/1/3/131383650/tojelaka.pdfIn PDF document text
    • https://fibukumaguwin.weebly.com/uploads/1/3/4/7/134770434/zatava-xamutokajepamup-ridab-kufem.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4388422/normal_5fd69bbfe190c.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4501380/normal_5fe233aea61ef.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4447669/normal_5fc6bb4bc7614.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368989/normal_5fb7b9d07531b.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/9071f310-0ba0-4b8c-a990-6f1ec7fcd6aa/pavirimejiwuwurotugifiza.pdfIn PDF document text
    • https://s3.amazonaws.com/vebisop/52099617161.pdfIn PDF document text
    • https://s3.amazonaws.com/jokotaziweluge/mapa_pueblos_asturias.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_off0000b4bc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB4BC 5096 bytes
SHA-256: b37b3da31d8b9a842556c1620d4c004d57f6f085c3a44e292cb63f99c7600d8e
font_01_sfnt_off0000c603.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC603 11732 bytes
SHA-256: 1b1bc77e1e12a816aba6742594329aec70d9ddfb1cd39bfd97b4ec1780ac30de

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