Malicious PDF — malware analysis report

Static analysis result for SHA-256 ea43b0814370657f…

MALICIOUS

PDF

61.4 KB Created: 2020-11-20 23:50:20 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: 9960136b9115f34baf62a09965bac23f SHA-1: 981a7133b19223c93ff917fb227c34916cc3d043 SHA-256: ea43b0814370657f16a9872bf8f5177076f238fabee6dc5d3aa8896c54df9ce9
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/123?utm_term=speaker+grill+foam+black In PDF document text
    • https://cdn-cms.f-static.net/uploads/4407807/normal_5fa65eb05f0f1.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4387243/normal_5fa2e04a25f37.pdfIn PDF document text
    • https://vuxozajuje.weebly.com/uploads/1/3/1/3/131379873/dozafawegikuxoto.pdfIn PDF document text
    • https://nokuzase.weebly.com/uploads/1/3/4/7/134765685/fezozezasixekub_telenom_tetilovitonoviz.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4385026/normal_5f8cf24ff23e3.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4417308/normal_5fac56ac9ae9a.pdfIn PDF document text
    • https://dajedenutiwifux.weebly.com/uploads/1/3/4/3/134318988/4432113.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4383304/normal_5f9a20a5f2769.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4390081/normal_5fafedf18bde1.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4492880/normal_5fb28930c59c0.pdfIn PDF document text
    • https://fulitadu.weebly.com/uploads/1/3/4/8/134863398/jelamapitifewe_vuxeralowazise.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/7bd938ba-96dd-4949-84c8-7cf87e5e5fd5/holes_camp_green_lake_brochure_project.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c5908a96-cc92-41dc-91f6-b02a5187a7ca/pigugesodir.pdfIn PDF document text
    • https://s3.amazonaws.com/ginutu/essentials_of_human_anatomy_and_physiology_answers.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

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000b418.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB418 5464 bytes
SHA-256: 56310b61c4530ca2071e16fbfeb569f1def1efa6d961f7d874053a12eee63e02
font_01_sfnt_off0000c6a6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC6A6 9984 bytes
SHA-256: 0a4866ac639d076e25b50f224a75dd106c3cb56300b1ae8e3d5f8b70ba66fe4c

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