Malicious PDF — malware analysis report

Static analysis result for SHA-256 f14b0ce7e5095246…

MALICIOUS

PDF

80.8 KB Created: 2021-02-19 04:47:39 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-21
MD5: fc7dc753eb6f5656bc83faf82a675108 SHA-1: 8802b58f18b7ac90a31c32f9d4d053f51f830da2 SHA-256: f14b0ce7e5095246d0c3a3afd397c792cf3b91a3fdafb4e7560743cc6c773d92
96 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing indicating an external URI, which points to a suspicious domain. The ML classifier and ClamAV detection strongly suggest malicious intent. The document body, though heavily obfuscated, contains text related to 'criminal law', likely a lure to encourage clicking the embedded URL.

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://jottigo.ru/strik?utm_term=what+is+criminal+law+in+uk PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4490725/normal_5fefecb4d194a.pdfIn PDF document text
    • https://cdn.sqhk.co/sojowidaz/rICXjdB/45575803684.pdfIn PDF document text
    • http://899themes-demo.ru/colorado_rockies_beat_reporter_twittercp0fc.pdfIn PDF document text
    • https://cdn.sqhk.co/zetoreli/jcgjIjc/road_rampage_racing_shooting_mod_apk.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4412902/normal_6022eb5aa976f.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4366381/normal_5fcfa21ad47e2.pdfIn PDF document text
    • https://cdn.sqhk.co/bapisolel/n9jpbgf/74638765823.pdfIn PDF document text
    • http://questotzvezd.space/pemuwobokiog156.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4487626/normal_600063b242c13.pdfIn PDF document text
    • https://cdn.sqhk.co/zujubokave/jhigygc/delomojeso.pdfIn PDF document text
    • http://drive4mclanemilwaukee.com/helter_skelter_movie_2020gjidh.pdfIn PDF document text
    • https://cdn.sqhk.co/jimavidozeze/jbjeeaj/epic_games_2fa_enable_switch.pdfIn PDF document text
    • https://cdn.sqhk.co/pixefavenar/YjgX7gg/.pdfIn PDF document text
    • https://cdn.sqhk.co/vosiwuli/jghdiiD/dragon_quest_11_walkthrough_jegged.pdfIn PDF document text
    • https://cdn.sqhk.co/wikelere/tQiiigv/20600056852.pdfIn PDF document text
    • https://cdn.sqhk.co/fuzekofuwe/hdBVdgf/64670069181.pdfIn PDF document text
    • https://cdn.sqhk.co/kasuvapexal/TgcjfkY/amazing_adventure_run_3d_mod_apk.pdfIn PDF document text
    • http://sushibara.net/15482747493db08q.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn 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_off0000fbc6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFBC6 5208 bytes
SHA-256: 4adc61c2abdbb52435e25213d2d17f864da25056325eb3b3cc66c3d6e55a2f23
font_01_sfnt_off00010d67.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10D67 12912 bytes
SHA-256: bf235e97e8d30949c9dc86b5998fa184002219207adab8b7dbbb3a5837f0998b

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