Malicious PDF — malware analysis report

Static analysis result for SHA-256 1ea8602ca810a818…

MALICIOUS

PDF

59.3 KB Created: 2020-12-07 17:44:06 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-02
MD5: 76709ed8a42801b56ee1546e89c09b27 SHA-1: d8046f4f8fea744f6b7de593b28e50c61a0c4f21 SHA-256: 1ea8602ca810a81836fb061e6cf0f7856771724b353234cd1e13e523797d640e
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 0.9996

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://cctraff.ru/strik?utm_term=innova+3030+manual In PDF document text
    • https://cdn-cms.f-static.net/uploads/4383565/normal_5f9f5c5132429.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4424996/normal_5fc2c56451fcf.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/kozibowisenatu/73459575226.pdfIn PDF document text
    • https://s3.amazonaws.com/pezofut/best_manual_burr_coffee_grinder_2019.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbf6637145a8629dca9410c/1606379067354/53083467836.pdfIn PDF document text
    • https://s3.amazonaws.com/suzitivasekoga/ford_radio_interchange_guide.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbcf29629c5e2669024e7f7/1606218393662/16590381426.pdfIn PDF document text
    • https://s3.amazonaws.com/najubu/xuxedajiwubatepiperusi.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9a09733b-2069-4e3d-b2ce-4d1645eb1be4/networking_essentials_download.pdfIn PDF document text
    • https://s3.amazonaws.com/paropabaru/dark_souls_3_enemy_randomizer.pdfIn PDF document text
    • https://s3.amazonaws.com/febopa/vetojeru.pdfIn PDF document text
    • https://s3.amazonaws.com/bufipevuril/carson-_dellosa_cd-_4301_answer_key_spanish.pdfIn PDF document text
    • https://s3.amazonaws.com/xoxaneral/besharam_full_movie_free_480p.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbdefc37acac6192a85759f/1606283204328/bni_noontime_networkers.pdfIn PDF document text
    • https://s3.amazonaws.com/zubuwujoxom/23592760743.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_off0000b1b1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB1B1 4860 bytes
SHA-256: c04d48765b3a17af305f0bba0a8d7e8ef1841167daee2602758000ae1c1daaf0
font_01_sfnt_off0000c230.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC230 9132 bytes
SHA-256: d9fd1c2ad627db22e78e093443175a713f62c2f35dfdc956c4fdbdc570c4afdb

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