Malicious PDF — malware analysis report

Static analysis result for SHA-256 5bf3e8767a4c905f…

MALICIOUS

PDF

66.2 KB Created: 2021-01-23 12:21:40 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-11
MD5: 0e6a794926b7c901914c89ff0dfa8bd6 SHA-1: 99cd9af7d26a45d6eef4649bc059e45f42b9f7df SHA-256: 5bf3e8767a4c905feeb7ce1adf2a3c7ab0edf8526de5db4e1547857891101671
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URL that mimics a search query, likely intended to trick the user into visiting a malicious site. ClamAV detection and ML classification strongly indicate malicious intent, classifying it as a phishing trojan. While no scripts were directly extracted, the PDF structure and embedded URI suggest a phishing lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://traffnew.ru/123?utm_term=how+to+make+flint+and+steel+in+little+alchemy PDF link annotation
    • https://cdn.sqhk.co/babijuvawov/d4ii6gh/ping_pong_table_design_ideas.pdfIn PDF document text
    • https://site-1197190.mozfiles.com/files/1197190/exponential_growth_and_decay_applications_worksheet_answers.pdfIn PDF document text
    • http://ramosek.iblogger.org/80831724897.pdfIn PDF document text
    • https://cdn.sqhk.co/jowowibow/hgH4jhQ/88008250719.pdfIn PDF document text
    • http://nufapivevavenak.22web.org/imdb_parents_guide_john_wick_3.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4488315/normal_5fe73eba7de73.pdfIn PDF document text
    • https://cdn.sqhk.co/pesenexur/ifigjgj/17836207629.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4459922/normal_6007e34f39029.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://wubexemetaxoru.epizy.com/64438092444.pdfIn PDF document text
    • https://s3.amazonaws.com/jozetej/68032498129.pdfIn PDF document text
    • https://s3.amazonaws.com/fejatepudopito/anari_movie_filmywap.pdfIn PDF document text
    • http://jolavewavesuj.epizy.com/juwixixixujedegaxag.pdfIn PDF document text
    • https://s3.amazonaws.com/towakog/magnesium_sulfate_chemical_information.pdfIn PDF document text
    • http://fuvituze.epizy.com/zajofibodo.pdfIn PDF document text
    • https://s3.amazonaws.com/juzewojavomofew/82302991741.pdfIn PDF document text
    • http://xegefonupekowa.epizy.com/21_day_bone_broth_diet_plan.pdfIn PDF document text
    • http://fivajopafovile.rf.gd/can_you_run_it_safe_to.pdfIn PDF document text
    • http://segixiw.epizy.com/outgoing_correspondence_register_template.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_off0000c1b1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC1B1 5384 bytes
SHA-256: e2192457d93a7672edbbef1e776d441f8f077d2e040397614dd4f9311e9d7347
font_01_sfnt_off0000d3f6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD3F6 11060 bytes
SHA-256: a736e282edcd8b1ed99a026b7a481515a7e63c6ff17402cb0969294f9993c82e

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