Malicious PDF — malware analysis report

Static analysis result for SHA-256 e7bbd8da5bbf758a…

MALICIOUS

PDF

69.0 KB Created: 2020-11-23 16:20:21 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-05
MD5: beb46705dbf124a2371cff2cdb7d0db8 SHA-1: 0c5dc34f98634a885874face549814336d0504a8 SHA-256: e7bbd8da5bbf758a45de195c91604266e94079c86ae4712697c7d1a7c087479f
156 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains a significant number of external links, identified as a link farm, suggesting a phishing or SEO manipulation attempt. The ML classifier and ClamAV detection strongly indicate malicious intent. While no scripts were explicitly extracted, the PDF structure and heuristic firings point towards a malicious document designed to redirect users to potentially harmful sites.

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://traffking.ru/123?utm_term=mega+man+x+final+boss+weakness PDF link annotation
    • https://jurosoke.weebly.com/uploads/1/3/4/5/134529251/wekulamujumiwotu.pdfIn PDF document text
    • https://rojisubul.weebly.com/uploads/1/3/4/5/134593633/taguxafipepodoxajulo.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4426830/normal_5fbb843cb472b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4383795/normal_5f90ece91422c.pdfIn PDF document text
    • https://wuxepufoz.weebly.com/uploads/1/3/4/3/134371519/7404827.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367635/normal_5f95e70373339.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4493201/normal_5fb977bc923ad.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4475875/normal_5fbb09948c8a3.pdfIn PDF document text
    • https://suxawadukisefi.weebly.com/uploads/1/3/4/7/134713915/xanewekulan.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://s3.amazonaws.com/voxazedisula/agnidevan_movie_songs.pdfIn PDF document text
    • https://s3.amazonaws.com/rizijubovapuk/pisetodewi.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d32e44e9-38dd-4794-9a4d-d00f129e4dea/gofatewamika.pdfIn PDF document text
    • https://s3.amazonaws.com/xakusineba/toleziriguregiturexapow.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7d31412f-eb7c-48c0-aeca-4ac8226e38b7/korean_potato_salad_with_corn.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000c5eb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC5EB 5068 bytes
SHA-256: de7a3aada70352519512cfcf4c4ce7f3c5c0f8c50c1f7ca84a0df00728f63eec
font_01_sfnt_off0000d72e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD72E 10228 bytes
SHA-256: 746e416e300d62338255f54b7bf41c68c9bcaf8a61c6f27909e561a1411da76e
font_02_sfnt_off0000f926.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF926 4324 bytes
SHA-256: 0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333

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