Malicious PDF — malware analysis report

Static analysis result for SHA-256 eabee3eac7917799…

MALICIOUS

PDF

79.5 KB Created: 2020-11-09 18:42:50 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: 15567c869a55a03682d77d765ec6b51c SHA-1: 2ac42c448bb7e25a5ad2d43104e2b0caf1044dd6 SHA-256: eabee3eac791779927123a1acee4c5da35f452f5821be841116c8f504d2f24d3
214 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 and 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 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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.
  • 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.
  • 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?keyword=coke+ceo+2020+vision In PDF document text
    • https://cdn-cms.f-static.net/uploads/4369932/normal_5f880188ae4f5.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368218/normal_5f8924e12c7e7.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365584/normal_5f8a5e23f2034.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366020/normal_5f88936bd0ff9.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4422150/normal_5f97f578900da.pdfIn PDF document text
    • https://gazesomudari.weebly.com/uploads/1/3/1/0/131070071/1672160c71976.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366336/normal_5f8c81f24ed3a.pdfIn PDF document text
    • https://folesatabija.weebly.com/uploads/1/3/4/4/134441350/rolawesogo_safoj_viriwituviku.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366340/normal_5f87a61c8eea1.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367301/normal_5f88001314642.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4383460/normal_5f9d83f781b60.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4456984/normal_5fa72ba37d30f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4425506/normal_5f9b5b5c89bcb.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn 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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d03d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD03D 8484 bytes
SHA-256: 052f07f89befa70d322310f6b2956ecb3ccdb4dcd27d81bb291e66b74744da8a
font_01_sfnt_off0000ecd2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xECD2 4756 bytes
SHA-256: 237e8252da5024ea22983d2815975fc87c305af3bbdb49f2b30423f3c9699a75
font_02_sfnt_off0000fd1f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFD1F 4640 bytes
SHA-256: 3902fd596f1919704403375b2493013c70f436f7d0448e5bbb596254fad18613
font_03_sfnt_off00010ce4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10CE4 10392 bytes
SHA-256: 201f798cf29837dd70c4c17cf4f0f213112032bc7108e3a1881e5f97a805cd33

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