Malicious PDF — malware analysis report

Static analysis result for SHA-256 119170f90b3d8d66…

MALICIOUS

PDF

70.2 KB Created: 2021-02-20 03:25:37 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-22
MD5: e25e8b41fd2dc6aa5a4275caf2dd1b8d SHA-1: 7af4120bec088f88c70638b7e100e91895b35a05 SHA-256: 119170f90b3d8d66b9d58ab63a074e5e0fed63216ee14a4ff3521a9df9413a7e
96 Risk Score

Malware Insights

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

The PDF contains an embedded URI that redirects to a URL disguised as a search result, likely to trick the user into visiting a malicious site. The ML classifier and ClamAV detection strongly indicate malicious intent. No scripts were extracted, but the presence of multiple external URLs suggests a phishing or credential harvesting attempt.

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://seumenha.ru/strik?utm_term=how+to+cook+corned+beef+simple PDF link annotation
    • https://cdn.sqhk.co/desavusomo/uibteVJ/like_a_boss_movie.pdfIn PDF document text
    • https://cdn.sqhk.co/xogovofofi/MginqwZ/miwuxilijirilafebujaxun.pdfIn PDF document text
    • https://cdn.sqhk.co/badisasi/hQghwXW/galaxy_attack_alien_shooter_beginners_guide.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4410206/normal_5ff8aa6fa42e0.pdfIn PDF document text
    • https://cdn.sqhk.co/parabeset/ifzAXbJ/35402127486.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4459916/normal_601be9040a1c8.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4371498/normal_5fee00a301549.pdfIn PDF document text
    • https://cdn.sqhk.co/panafilaputu/gXtogeu/regal_theatres_reopening_date.pdfIn PDF document text
    • https://cdn.sqhk.co/rasepotobami/yHkMmgf/catfish_cooley_fireball_backflip.pdfIn PDF document text
    • https://cdn.sqhk.co/sebazisop/xhhjig4/24566370400.pdfIn PDF document text
    • https://cdn.sqhk.co/zokelotosa/mUgehd9/seesaw_class_app_store.pdfIn PDF document text
    • https://cdn.sqhk.co/funixatugesi/1f1rKft/jivudog.pdfIn PDF document text
    • https://cdn.sqhk.co/mezutorixo/s8hf09j/44795842360.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/wonumafubij/21187958189.pdfIn PDF document text
    • https://s3.amazonaws.com/xuzakob/benikuzesusaxuninixav.pdfIn PDF document text
    • https://s3.amazonaws.com/bevarolimesale/vocabulary_powerpoint_games.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_off0000d65a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD65A 5348 bytes
SHA-256: 8201689059d81bdf168699f5048a77834626af7975158508871333bcc40c44b8
font_01_sfnt_off0000e887.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE887 10396 bytes
SHA-256: 9fe1a231166e00e329f06cb5f268a994596d8592c724b1fa8e3badaf5bcd8c80