Malicious PDF — malware analysis report

Static analysis result for SHA-256 3d9266612a6c90f9…

MALICIOUS

PDF

67.1 KB Created: 2020-11-18 13:41:18 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: 6361a9c4abde3f8d12119c556afd4fef SHA-1: 8978398824c8d2cec700f6cc057804c75d63e219 SHA-256: 3d9266612a6c90f95b599406e9176312ec378da06719b61b151fa873f41bbc33
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://traffset.ru/123?utm_term=american+assassin+download+in+hindi+480p PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4369760/normal_5f89624a3052a.pdfIn PDF document text
    • https://xesaranit.weebly.com/uploads/1/3/2/6/132696194/6362055.pdfIn PDF document text
    • https://poraduke.weebly.com/uploads/1/3/4/3/134385775/ef22caa.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4463264/normal_5fa1c0409333e.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/jesidofefe/la_belle_et_la_bete_hd_streaming_1991.pdfIn PDF document text
    • https://s3.amazonaws.com/suxugipipolazog/86654295063.pdfIn PDF document text
    • https://s3.amazonaws.com/xakusineba/44006235772.pdfIn PDF document text
    • https://s3.amazonaws.com/tazibabebamep/sims_mobile_hack_free.pdfIn PDF document text
    • https://s3.amazonaws.com/zidosozawok/princess_the_hopeful_merits.pdfIn PDF document text
    • https://s3.amazonaws.com/lonozote/ai_ay_a-_e_sound_worksheets.pdfIn PDF document text
    • https://s3.amazonaws.com/roware/20230540084.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_off0000c9b3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC9B3 5816 bytes
SHA-256: f6d894287a0e12cc78b2e04e92752e8e87f8368656991f94dc151f7b774047dd
font_01_sfnt_off0000dd69.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDD69 9928 bytes
SHA-256: f2d86006635a066475b85a34e02f6d3f1b8d1e2f36e964eaf1743e1fa7f5b92b

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