Malicious PDF — malware analysis report

Static analysis result for SHA-256 9ce84dd425b7c86b…

MALICIOUS

PDF

65.5 KB Created: 2020-11-16 23:42:13 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: 9230ac980679a29ccce5d6a9be597db2 SHA-1: d35dc6ed2dc818da91de242a99f82a03c7cfccb7 SHA-256: 9ce84dd425b7c86bf7400f90d2aa4e75e32946a694661ed3cac9a9e3b2906dc5
154 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file routes users through malicious redirector infrastructure. Specific URLs and indicators for this sample are listed in the indicators section.

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://ggtraff.ru/strik?utm_term=gre+chemistry+old+exams In PDF document text
    • https://cdn-cms.f-static.net/uploads/4475852/normal_5faaed5c30d3b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4454547/normal_5faefb36d2003.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4380522/normal_5f8c4e8a41cdd.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4393502/normal_5fb291854c183.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4420600/normal_5f993ccbe0bfe.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4374178/normal_5f8a1f4468749.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4385614/normal_5fa5938a84f38.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4382187/normal_5f980e9b435de.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366385/normal_5f87bdfe57063.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://uploads.strikinglycdn.com/files/98564993-c16c-4093-a02d-f7f0d331a4c0/vuzivipozuman.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d6dd3d66-8226-45c4-aa0a-4b42a08ea9e8/guzanab.pdfIn PDF document text
    • https://s3.amazonaws.com/jivuxo/52458360980.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ecf25238-cab9-44e7-927c-a6a825ae0b57/tketici_rant_sorular.pdfIn PDF document text
    • https://s3.amazonaws.com/lixasifasi/16110370102.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000b9cb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB9CB 5060 bytes
SHA-256: 669ae676129b72a0c3f3e3fda3efb85c3d175d2e549430547f4cacbd3ba5dba3
font_01_sfnt_off0000cb0e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCB0E 9448 bytes
SHA-256: 7a3fa5ed33b655a01c6c6ea66e5b904eab5dfa90c92182afab4d6a64e694002e
font_02_sfnt_off0000eada.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEADA 4324 bytes
SHA-256: cd94ef65598b1866d0653cdd88243d989fd81359c0e770c2d3a4858f1c2f6d34

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