Malicious PDF — malware analysis report

Static analysis result for SHA-256 87a62094a779bac9…

MALICIOUS

PDF

68.0 KB Created: 2020-11-14 17:08:38 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-02
MD5: fc23a129af7f0599e664c1e003103328 SHA-1: de2ed6741babcf354c55898731f907d414402240 SHA-256: 87a62094a779bac9c45a26139b3170873a20ae311b71594ac7710b8c6742710d
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://gettraff.ru/strik?utm_term=futurama+worlds+of+tomorrow+guide In PDF document text
    • https://cdn-cms.f-static.net/uploads/4420028/normal_5f9c7cf848ccc.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4408584/normal_5f9e1963d9a65.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366017/normal_5f963f21ec0e9.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368474/normal_5fa4f2a127ae7.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4382004/normal_5f8b3d12f19e7.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4424997/normal_5fa55b927cd35.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4374374/normal_5fa48abbce3fd.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/rebesudanolo/26745082897.pdfIn PDF document text
    • https://s3.amazonaws.com/xupovobejanam/global_history_regents_review_2020.pdfIn PDF document text
    • https://s3.amazonaws.com/rawesaragegugar/mosategukowefasoz.pdfIn PDF document text
    • https://s3.amazonaws.com/naxizugenabi/dumorobipefamibadade.pdfIn PDF document text
    • https://s3.amazonaws.com/petikamov/6468902571.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_off0000ccc4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCCC4 5272 bytes
SHA-256: f43ecef5a8f16144e3de4dab35b040c028ca9e630f475dde51fe409d6ff99bf4
font_01_sfnt_off0000deb1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDEB1 10756 bytes
SHA-256: ea9353ea1e1dfa33a662fbc795eaec6480c26e1963ed7e5676b5fdef98860ecb

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