Malicious PDF — malware analysis report

Static analysis result for SHA-256 e30510895f20c890…

MALICIOUS

PDF

66.9 KB Created: 2020-12-02 07:16:10 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: ac5b9704835bde8074a6fbc1aa8474d2 SHA-1: 95e0f22d88fe429bca15d3d85b6947d2ba653530 SHA-256: e30510895f20c8901faac596dda96c19c6eb7c9be0843a4a2da003a8f4a816cf
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/strik?utm_term=drawing+with+the+right+side+of+the+brain+classes In PDF document text
    • https://cdn-cms.f-static.net/uploads/4476756/normal_5fa97350c1287.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4383913/normal_5f99748c2fc5f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4414679/normal_5fae5a825c744.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4387810/normal_5f947f0bd9964.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4452217/normal_5fa79bb4777a6.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/jobavo/kafalipevofefopex.pdfIn PDF document text
    • https://s3.amazonaws.com/zagubip/small_to_ppt_converter.pdfIn PDF document text
    • https://s3.amazonaws.com/xugigabitulu/free_business_letterhead_templates_uk.pdfIn PDF document text
    • https://s3.amazonaws.com/xajowu/manabinadem.pdfIn PDF document text
    • https://s3.amazonaws.com/zowejunef/53583812537.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c02417b4-f2f1-498e-a0e6-2bc72e286933/dsu_testing_center_dover_delaware.pdfIn PDF document text
    • https://s3.amazonaws.com/nazezawovi/vuxabojofegalaran.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbcef02b4c4d833b8bc50ac/1606217475351/xopopisubobamasafezex.pdfIn PDF document text
    • https://s3.amazonaws.com/bawalidamovidud/education_pamphlet_templates.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbd08da2c6de34c7a3a7149/1606224092013/robegamosow.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a6ea367b-1227-4cd0-8086-2f7b9a6b19de/43731270230.pdfIn PDF document text
    • https://s3.amazonaws.com/makumapikeze/intermediate_drum_beats_sheet_music.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_off0000ca59.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCA59 5512 bytes
SHA-256: e52fb249e107cb8bbc4328a4c88fda1f87e4adeaaf4f6cd3aaf737056c934ea3
font_01_sfnt_off0000dd26.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDD26 9860 bytes
SHA-256: da4dfeba9415975a02ca3630d9ffc3d59f8813c075cc4505ac4802198c1e6249

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