Malicious PDF — malware analysis report

Static analysis result for SHA-256 00227e70900c35b7…

MALICIOUS

PDF

70.3 KB Created: 2020-12-16 02:58:38 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: 17e6e5e05470ac35e70fdd0eaad3f268 SHA-1: 17e3acfad8b7637257e76278b927c59ae51bc524 SHA-256: 00227e70900c35b7978048f581626f6a98170be983f76d527867d474be4b1b68
156 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 embeds a large number of external links characteristic of an SEO link farm. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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://trafffe.ru/strik?utm_term=first+pass+effect+meaning PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4488570/normal_5faa17e23abb3.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4370525/normal_5fd5f5cb617f2.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4427267/normal_5f98540a4feba.pdfIn PDF document text
    • https://jijalasigode.weebly.com/uploads/1/3/4/3/134344414/f8d35e1923d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4443576/normal_5fd65105415d2.pdfIn PDF document text
    • https://voxonevixes.weebly.com/uploads/1/3/4/3/134383310/1823686.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4387218/normal_5fabb275d5f85.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366331/normal_5fa66b9a28c78.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4453108/normal_5fbefbc9a93b9.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4383802/normal_5f8c1df086595.pdfIn PDF document text
    • https://voxomusixexuso.weebly.com/uploads/1/3/4/8/134851372/780270.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/tizowodifi/74972154260.pdfIn PDF document text
    • https://s3.amazonaws.com/sugaguxagu/21177367304.pdfIn PDF document text
    • https://s3.amazonaws.com/zufojadibi/depression_glass_value_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/rawesaragegugar/rental_agreement_in_spanish.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_off0000d306.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD306 5260 bytes
SHA-256: f60fc64b94b34fe2943694342d050cdc14efd9f7a673ea70e6587fed5f0e8916
font_01_sfnt_off0000e4d7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE4D7 11628 bytes
SHA-256: e56d065a8c0a0100fe2131c433efe6fff98feafa4ee40b3a65754fbd2ca6839b

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