Malicious PDF — malware analysis report

Static analysis result for SHA-256 eb006afd79c5e287…

MALICIOUS

PDF

69.6 KB Created: 2020-12-20 21:39:40 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-02
MD5: daf113f33ac08d1176b924579a8b2b15 SHA-1: 92690151fc1ef01c9fb2f50241dab9c755db2ee7 SHA-256: eb006afd79c5e287fe95dcea4c4e84a661f3ce3a8d32d3f2fb7a772c013abfc3
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 0.9997

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://traffmen.ru/123?utm_term=roofing+plan+design In PDF document text
    • https://static.s123-cdn-static.com/uploads/4445532/normal_5fc9c920802a0.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4479675/normal_5faba692bc6ea.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4415322/normal_5f9c8ad14a9d9.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4479433/normal_5faa3de01c890.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4369933/normal_5fc428f8dc881.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4391621/normal_5fa21f925b25c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4466680/normal_5fae16e74589e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4371814/normal_5fc0709c6ac81.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4457590/normal_5fc42a4835ea4.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/bulalowisu/australian_embassy_tourist_visa_form_1419.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc296788787e8798976c150/t/5fcccf9a7ae85b53b29025fc/1607258010698/ball_mayhem_unblocked.pdfIn PDF document text
    • https://s3.amazonaws.com/penefelomiju/24480371180.pdfIn PDF document text
    • https://s3.amazonaws.com/divexikav/surge_protection_device_working_principle.pdfIn PDF document text
    • https://s3.amazonaws.com/vasagesorajirem/apple_ipad_user_guide_ibooks.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_off0000d549.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD549 5120 bytes
SHA-256: c980067ffcf16607ab7f38718a822b149d20f6b51ac16361bb97ba6c16ce88b6
font_01_sfnt_off0000e6d7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE6D7 10296 bytes
SHA-256: 22cd9403b5e82ecf96e892b9c2299120809c5c80f317486abffc3bf246aa0902

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