Malicious PDF — malware analysis report

Static analysis result for SHA-256 e2f7d6be2206ad45…

MALICIOUS

PDF

73.9 KB Created: 2020-11-11 16:52:18 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: a01c7caf7cb7f77cec1e8c8a8889fd6c SHA-1: 93524cdf4c852db4b807ea93034d39840d5531fb SHA-256: e2f7d6be2206ad45007a8a97b31f3cb398f68090a151d78b55bfde689ee2dbbe
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?utm_term=become+your+own+banker+whole+life+insurance In PDF document text
    • https://cdn-cms.f-static.net/uploads/4447888/normal_5fa86c939df27.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4388407/normal_5f921456f23a3.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366980/normal_5f8de6f10f6d7.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4377717/normal_5f95bf54e984e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367005/normal_5f874ea394ee9.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4426257/normal_5f9ee14ea4437.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/dabatisew/83119090346.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e7a1047d-7a1d-4e3a-8b8f-64f3d996148f/11783515159.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3d98e268-5b1f-45e2-9141-bf096af6ab33/evenflo_booster_seat_manual.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6cead965-b24f-40a0-9dcf-30143d75cd5d/kugexasad.pdfIn PDF document text
    • https://s3.amazonaws.com/fomaralunex/15582262357.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/aed10ab6-1b88-4e86-a7eb-c4cf1b3a8e1f/83032856591.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/01dd46cf-9619-4ad1-9e49-79bdca11e62c/craftsman_lawn_mower_battery_charger.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2808e719-aab2-4973-8c2f-502f63511f27/wixem.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ac6d3bf6-a69c-419b-8a70-2229f498cf4c/6847688157.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_off0000e31d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE31D 5568 bytes
SHA-256: 4e3bf50b7788f7144badd905c23a79336a78f2e7d24f26953d55b79d40f9c8ac
font_01_sfnt_off0000f5ff.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF5FF 10536 bytes
SHA-256: 0a835a645435f18ed79309e517f9e5f1435ee59218b95f9b7fb21a75d5ec9d26

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