Malicious PDF — malware analysis report

Static analysis result for SHA-256 2d706ff604e10d1a…

MALICIOUS

PDF

73.0 KB Created: 2021-02-26 22:52:15 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-02
MD5: 6c532692a7287d1db967ab9d7523884c SHA-1: 10c0a37336cd7a6aacb98d52ada3df304fe2a24e SHA-256: 2d706ff604e10d1aa0accf2550981f7745f4444102c13c1de8e396b3f7e298e4
154 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'crophysi.ru'. The ML classifier also strongly flagged this PDF as malicious. While no scripts were extracted, the presence of a malicious URL suggests the document is designed to redirect users to a harmful site, likely for phishing or malware delivery.

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
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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://crophysi.ru/award?keyword=is+a+high+school+relationship+worth+it In PDF document text
    • https://static.s123-cdn-static.com/uploads/4479705/normal_5fc69cffae49b.pdfIn PDF document text
    • https://cdn.sqhk.co/jebuxanit/iz4PIwV/canvas_student_view_groups.pdfIn PDF document text
    • https://newavutija.weebly.com/uploads/1/3/1/8/131871734/306b8d2de.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4463275/normal_60116e3d2fac1.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4489843/normal_6028063ea89e9.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4370087/normal_6001e41d807c8.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4411696/normal_6002b6084706d.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4412582/normal_600529d798d26.pdfIn PDF document text
    • https://cdn.sqhk.co/divojimo/jfJvUhe/68661421330.pdfIn PDF document text
    • https://mizavujubamu.weebly.com/uploads/1/3/0/7/130775062/xijitinukoxofilaf.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://delupujak.epizy.com/96049694181.pdfIn PDF document text
    • http://gidepajujida.rf.gd/bhagwa_rang_dj_song_bestwap.pdfIn PDF document text
    • http://sivigowukom.epizy.com/wps_spreadsheet_software.pdfIn PDF document text
    • http://zodumokosijupe.epizy.com/4th_industrial_revolution_advantages_and_disadvantages.pdfIn PDF document text
    • http://nuxizutize.rf.gd/cursive_writing_worksheets_free.pdfIn PDF document text
    • http://bamalupit.rf.gd/what_junk_foods_are_gluten_free.pdfIn PDF document text
    • http://monulaw.epizy.com/how_to_get_a_new_marriage_certificate_ontario.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_off0000e15f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE15F 5224 bytes
SHA-256: acc5d9f5acfaf2a6164621ca0ff2f2d45669f854a287ab7b75b993eb1da9c1c3
font_01_sfnt_off0000f336.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF336 10472 bytes
SHA-256: fa8c381fd98aac6a66a18163380d138e13e43b2902438c02ff9bd51189a4a40d

Open this report in the interactive analyzer, or submit your own file for analysis.