Malicious PDF — malware analysis report

Static analysis result for SHA-256 d32a251c2117c301…

MALICIOUS

PDF

68.7 KB Created: 2020-11-21 11:16:18 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-02
MD5: 161af94086455d99114929651ac8beee SHA-1: 92089958c1c013dcb271c0f2603f556d35118eeb SHA-256: d32a251c2117c3013c21687c7bc9bd548d60095aec2a78cff0e7be8303a0d4fa
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 0.9981

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://trafficel.ru/123?utm_term=lost+civilizations+africa+a+history+denied+answers PDF link annotation
    • https://rulomegujenuguv.weebly.com/uploads/1/3/4/3/134329868/8604876.pdfIn PDF document text
    • https://xitukuwelup.weebly.com/uploads/1/3/4/3/134340625/7007845.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4401540/normal_5f99e0577e707.pdfIn PDF document text
    • https://feleluxotikuko.weebly.com/uploads/1/3/4/3/134338959/2115031.pdfIn PDF document text
    • https://gerugufudob.weebly.com/uploads/1/3/4/8/134869234/raxopiluxilaw-xemoxir-gaset.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/tosevud/brochure_template_psd_tri_fold.pdfIn PDF document text
    • https://s3.amazonaws.com/nuxulikiwab/the_gospel_according_to_spiritism_allan_kardec.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/232e124d-edcb-4506-a79d-9e7ad6f4cd30/61447140291.pdfIn PDF document text
    • https://s3.amazonaws.com/wajibile/9745965859.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_off0000ce46.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCE46 5356 bytes
SHA-256: f51aa8f755e5fe51490f15b032c31c5a80110b6f2ed01d0c7319200045de2d2c
font_01_sfnt_off0000e0a1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE0A1 10940 bytes
SHA-256: 5eaf569426828401bef5e722d91e89a01ea816f2fcd16fa7d6da4b74f352dd1e

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