Malicious PDF — malware analysis report

Static analysis result for SHA-256 caae52d96bed63e7…

MALICIOUS

PDF

185.5 KB Created: 2020-11-19 07:55:56 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-02
MD5: a06b74f37ec135b8251a9e863284d173 SHA-1: 930b972466f95a07a89f3d1063fc2005dbe756b1 SHA-256: caae52d96bed63e775d8182309e9668f5abe99d9fd38872c334f0b1b758cf523
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 0.9941

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=school+of+dragons+codes+for+light+fury PDF link annotation
    • https://turetajonu.weebly.com/uploads/1/3/4/6/134629909/4576826.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4447267/normal_5faf2c800c736.pdfIn PDF document text
    • https://nudojafobedem.weebly.com/uploads/1/3/1/3/131379550/jewilometok.pdfIn PDF document text
    • https://bapadiwifujeki.weebly.com/uploads/1/3/4/0/134041393/c4356ecc04.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/tifuwuw/vazuviluvezimexuponej.pdfIn PDF document text
    • https://s3.amazonaws.com/kalufizefem/92743142107.pdfIn PDF document text
    • https://s3.amazonaws.com/bepukuba/17159259800.pdfIn PDF document text
    • https://s3.amazonaws.com/baxunaf/13770721044.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/95258999-315a-44e1-9d4f-e90c7ebcf9f0/kimosabileraxonalarigaza.pdfIn PDF document text
    • https://s3.amazonaws.com/potevip/music_maker_jam_apk.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00025d76.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x25D76 11580 bytes
SHA-256: 2888e8151fe8b1db938b4b63a1d028aac57fea3b6ae5f1b047bd507d7fb19f61
font_01_sfnt_off000281b3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x281B3 5488 bytes
SHA-256: 9997a336efe7b6b89986f61e84252f29860a8fe36657879dddbec2927b2942e4
font_02_sfnt_off0002945e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2945E 12992 bytes
SHA-256: cf44f4f3d4a4ad9170288a1ee6fa1dc056d8a05cdba094f0eb4f89dd3569f578
font_03_sfnt_off0002becc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2BECC 17244 bytes
SHA-256: bf4282387d7b4cce9ce1303d9880b468a6960af4efbed12362ea64dfac582628

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