Malicious PDF — malware analysis report

Static analysis result for SHA-256 358e7b218c7743ea…

MALICIOUS

PDF

72.2 KB Created: 2020-11-11 08:59:29 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-02
MD5: 31c4761eff5a5e96b1b11601c12de703 SHA-1: 939f18baa21f056f4b4f3e957354ed69e0626b17 SHA-256: 358e7b218c7743ea602cbaf6ba42eb48027bdf120030865da3efa9e3402dc14a
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?keyword=nordictrack+audiostrider+990+pro+review In PDF document text
    • https://cdn-cms.f-static.net/uploads/4475739/normal_5fab633ef4038.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4377935/normal_5fa855eecaf0d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4374373/normal_5f9b6a9abe14f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365660/normal_5fa1c17d4f09a.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/tobojelusiwi/wufadixegodirumujij.pdfIn PDF document text
    • https://s3.amazonaws.com/sefipa/free_netflix_accounts_2020_that_work.pdfIn PDF document text
    • https://s3.amazonaws.com/bededuxotulapil/saurastra_samachar_bhavnagar_epaper_today.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/80a0eb0a-d674-4a2d-8ff6-2c23703adb07/47867428845.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e33f67aa-2abe-41cb-a284-cf40c5fb03f9/turuwuwed.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/03906cc6-79a3-41ef-924a-e8f63a2d219c/pevesobitipagi.pdfIn PDF document text
    • https://s3.amazonaws.com/badodemebo/rehearsal_dinner_invitations_wording.pdfIn PDF document text
    • https://s3.amazonaws.com/luresimosip/california_driver_s_handbook_2020.pdfIn PDF document text
    • https://s3.amazonaws.com/xalexojaxipud/mercadotecnia_estrategias_de_mercado.pdfIn PDF document text
    • https://s3.amazonaws.com/migivewuwe/rekezuzereturinowafutuxu.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_off0000d91f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD91F 5516 bytes
SHA-256: c61149a4f9ea5cf9804f640208eced9dafce7a3213cf631e1821ede36543370a
font_01_sfnt_off0000ec02.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEC02 11640 bytes
SHA-256: 9c887193118520c0c2e80b8ed76cfa68f2bfec6aae6501742ea594b28240665f

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