Malicious PDF — malware analysis report

Static analysis result for SHA-256 06dc36c2ba86c12d…

MALICIOUS

PDF

154.0 KB Created: 2020-10-25 07:18:17 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-14
MD5: 028e7839aa2c8273510ec0bd22db6797 SHA-1: 11be7554f057033c04f4ccead35a9812bb848fad SHA-256: 06dc36c2ba86c12d9e8d9496e0bace3cfc95376b27ce1c69b68be7ef3cadbc76
94 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for a malicious redirector link, pointing to 'https://ggtraff.ru/wb?keyword=definition%20of%20terms%20in%20research%20sample%20pdf'. The ML classifier also flagged this PDF with high confidence. While no scripts were extracted, the presence of a malicious URL strongly suggests an attempt to lure the user to a compromised site, likely for further exploitation or phishing.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 3

  • 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://ggtraff.ru/wb?keyword=definition%20of%20terms%20in%20research%20sample%20pdf In PDF document text
    • https://cdn-cms.f-static.net/uploads/4384301/normal_5f94aafa5b0f8.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368767/normal_5f8b2c353e2b9.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369318/normal_5f8cffaa79bfa.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4381751/normal_5f9124c72f6c5.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4376099/normal_5f8a5159e2dab.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4373239/normal_5f94d47f26aae.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4388178/normal_5f8df2c3f2ed1.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4408865/normal_5f94ec2dc8aa0.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/jenagubadopi/64366359098.pdfIn PDF document text
    • https://s3.amazonaws.com/wujodibu/ask_fsk_psk_modulation_and_demodulation.pdfIn PDF document text
    • https://s3.amazonaws.com/petikamov/zuzitujeraduwojoloxajake.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/13d78265-49ac-4505-9cc6-110029a1a843/possessive_pronoun_adjective_exercise.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/cd8e1325-7107-43d4-9a1b-1adc30dfa37f/mebesiderolexemal.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0146d8ec-3f9b-4ddd-800f-7583bb4fdc14/93005963097.pdfIn PDF document text
    • https://s3.amazonaws.com/bagisi/distillation_et_rectification.pdfIn PDF document text
    • https://s3.amazonaws.com/tejuvonixag/xagidadefexujejumilijufi.pdfIn PDF document text
    • https://s3.amazonaws.com/xanebavifamopez/suwotupo.pdfIn PDF document text
    • https://s3.amazonaws.com/gifiz/ratodabanowezawolimiv.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d6dd115c-658b-4aa4-a0de-7c58119cce0b/75211015167.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/14d05f97-e4ce-4496-842e-745e3d4e334f/65680827519.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_off00022050.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x22050 5396 bytes
SHA-256: c3e133f88cd54951b1af6b89c9e88569add6bc4b7043c6b62a6d39d0673b81c5
font_01_sfnt_off00023282.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x23282 11528 bytes
SHA-256: 74ece12ef5a68559d42b30a0f707aa62e3daf0b0dbec425a1bae823ac5d49b1e

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