Malicious PDF — malware analysis report

Static analysis result for SHA-256 9dee2d095ab001b9…

MALICIOUS

PDF

73.4 KB Created: 2021-03-12 01:12:42 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-07-02
MD5: 995a34e3dc4cd369f9c42bec6caa97f3 SHA-1: 03d263e01a5e3669294ce3d9b06b0de6c35f82a7 SHA-256: 9dee2d095ab001b9b809ecae5b15dea9db7e9e74b1729b084cb19a714cd66b0f
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF file was flagged as malicious by a ClamAV signature and an ML classifier. It contains an embedded URI pointing to a suspicious domain, likely intended to redirect the user to a phishing site. The document body appears to be corrupted or heavily obfuscated, preventing a more detailed analysis of its specific lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://botokaw.ru/123?utm_term=vlookup+in+multiple+sheets+example PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4378599/normal_5fefd498af3e1.pdfIn PDF document text
    • https://cdn.sqhk.co/juvanejejuwo/YgetIN2/dedofezagagipaxivaru.pdfIn PDF document text
    • https://cdn.sqhk.co/sizafutito/iaJUA2d/farm_animals_near_me_for_sale.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4485930/normal_602bf2c992c5a.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4411481/normal_5ff21ad3e4b96.pdfIn PDF document text
    • https://cdn.sqhk.co/wefekoferu/rjeIHib/samsung_galaxy_note_8_backup_to_pc.pdfIn PDF document text
    • http://differencecheats.net/pavijowemoromaputodifuvk76h.pdfIn PDF document text
    • http://meetcabinets.xyz/sikoto2buf9.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/jutenojamega/why_are_reports_important.pdfIn PDF document text
    • https://80820154-e864-4b0c-832b-212b24169927.filesusr.com/ugd/c12414_3ff5ec4e6bc942bab79cfc2794924b6f.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/fidefofudi/47444469816.pdfIn PDF document text
    • https://f37c3615-20b0-4e70-b1e7-2acf34113780.filesusr.com/ugd/1e533a_073e480a811c4631aaa4b606376a4a97.pdf?index=trueIn PDF document text
    • https://2a403a33-5f6e-4534-96f9-742aa7325afc.filesusr.com/ugd/d2da83_6c8989c365bc47fa890937a3569d4c52.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/35479e7b-cf13-40b9-b2d9-cca1c03b3352/research_methods_in_psychology_4th_edition_publisher.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5848f5af-1120-48be-862c-047aaf5ee6ad/cub_cadet_lt1042_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/sudevejerifu/fudge_a_mania_movie_1995.pdfIn PDF document text
    • https://s3.amazonaws.com/putelekireza/dota_underlords_update_guide.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_off0000e1cd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE1CD 5060 bytes
SHA-256: be5080abbe8e03e348f3e7e8ee068a1fccdca8d63b48d271a52d271283624ccb
font_01_sfnt_off0000f2e3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF2E3 11044 bytes
SHA-256: 3cf2d4a91e6f06450f381c43adfb6eca37a014a1ce1537291f96c6ca860c8b76

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