Malicious PDF — malware analysis report

Static analysis result for SHA-256 bd2f8260c018f54b…

MALICIOUS

PDF

75.9 KB Created: 2021-02-02 07:45:04 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-07-02
MD5: dc0ea56435db621bf0bd525b963776f0 SHA-1: edbdb9dfe69d38c9768399c5f22e6cbd45051ae4 SHA-256: bd2f8260c018f54b411cc14a08ef0cfe2c968bc41beea6671dacbb8a23d8a01e
154 Risk Score

Malware Insights

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

The PDF contains a link to a known malicious redirector infrastructure, indicating a phishing or malware distribution attempt. The ML classifier and ClamAV detection strongly support its malicious nature. While no scripts were explicitly extracted, the PDF structure and embedded URLs suggest it's designed to lead the user to malicious content, likely for credential harvesting or further malware deployment.

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
  • 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/aws?utm_term=fire+alarm+installation+guidelines In PDF document text
    • https://cdn.sqhk.co/tetaxekumipi/hfBjiyf/79612243515.pdfIn PDF document text
    • https://cdn.sqhk.co/kegufamop/jhhdjdc/carrera_slot_cars_1_32_digital.pdfIn PDF document text
    • http://detonic-romania.website/international_business_major_definition5ox2l.pdfIn PDF document text
    • http://deemonatrafik.xyz/dinosaur_jumping_game_online2b2qz.pdfIn PDF document text
    • http://storefromit.pro/best_chat_app_in_pakistans9fgr.pdfIn PDF document text
    • https://cdn.sqhk.co/kanereneb/qjcEvbf/beach_buggy_racing_xbox_one_2_player.pdfIn PDF document text
    • https://cdn.sqhk.co/romumoxoleno/02o3hcp/64083799755.pdfIn PDF document text
    • https://cdn.sqhk.co/borefigux/HfgdD8N/golden_ball_2020_nominees.pdfIn PDF document text
    • https://cdn.sqhk.co/bosesegivu/VuYjckH/56889868168.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://rujidita.rf.gd/honeyguide_tented_safari_camps_home.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_off0000ea3e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEA3E 5100 bytes
SHA-256: affb7b3ecefc66993d83e8e88c6a34b7d34d5f658e3a41b8f45896e7b6d8d1ea
font_01_sfnt_off0000fb7d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFB7D 12016 bytes
SHA-256: c647790dea2215926194189f72fb63c7fc9517c62f736d94f64bebbe8493de5e

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