Malicious PDF — malware analysis report

Static analysis result for SHA-256 8e49582f1b083217…

MALICIOUS

PDF

83.8 KB Created: 2020-11-24 14:15:00 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-02
MD5: 09e6fbeaeb964cc2024d3bc2b3a11162 SHA-1: 0834fcf2a89079360e38bd733484a834e88eb53f SHA-256: 8e49582f1b0832174ee9e77490c31ff20f54458daa1a82841fc3fa7f4b89ef49
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 0.9998

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/123?utm_term=insurgent+chapter+30+summary In PDF document text
    • https://cdn-cms.f-static.net/uploads/4377642/normal_5fad666ea8d47.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4379612/normal_5f92b17b56632.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4466143/normal_5fa5baaf1f342.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4406820/normal_5fadd7e12d203.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4405208/normal_5f98e1e9a1759.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4416332/normal_5f968dc0d0ce5.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4371514/normal_5fb5f513b4c92.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367687/normal_5f9181d30026f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4374838/normal_5f990ed972107.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4457577/normal_5fa99c0d2124b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367310/normal_5f874c6453730.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/gowebabuxogiro/78012593047.pdfIn PDF document text
    • https://s3.amazonaws.com/subud/54461508919.pdfIn PDF document text
    • https://s3.amazonaws.com/xanebavifamopez/38974924119.pdfIn PDF document text
    • https://s3.amazonaws.com/fotojipifuzitul/36401911171.pdfIn PDF document text
    • https://s3.amazonaws.com/sigobija/aashto_soil_classification_example.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_off0000ef36.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEF36 7412 bytes
SHA-256: f363b3d984991714d0e242dac75fe428a8f9d8616dbb4fe3b47bb0aef2e0b0ec
font_01_sfnt_off00010877.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10877 5660 bytes
SHA-256: 8cb4820751b1f710cc324dc2e45fba546c99f19eab6e4d8cd54b807a728b8b00
font_02_sfnt_off00011b9a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11B9A 11308 bytes
SHA-256: b7c7685c0eeb404528982201228a5a07757b2d7d570d3ce54226064b17a82049

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