Malicious PDF — malware analysis report

Static analysis result for SHA-256 eb1a92d1e2ef6ad4…

MALICIOUS

PDF

70.2 KB Created: 2020-03-12 17:31:15 Authoring application: Aspose Ltd. (via Aspose.PDF for .NET 21.4.0) First seen: 2026-06-05
MD5: b4b0841b8d3748ef38d1215da9989546 SHA-1: 7968bd0825878474681dae8b75532ff892a275c5 SHA-256: eb1a92d1e2ef6ad475280d612ed2ac8c367e03ae600eaeeaaa25c1e9f64df95e
212 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file contains a large number of embedded links, many of which point to disposable hosting or known redirectors, indicating a link farm or phishing attempt. The ClamAV detection and critical heuristic firings confirm its malicious nature. The embedded URLs are designed to redirect users to potentially malicious sites, likely for credential harvesting or malware distribution.

Machine Learning

  • Nyx PDF Classifier clean score 0.2203

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
  • 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.
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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://gettraff.ru/123?utm_term=avaya+aura+messaging+aria+user+guide In PDF document text
    • https://winugemu.weebly.com/uploads/1/3/1/0/131070294/wudefesuvonozi_sazuruke_zakofidadarod_xowol.pdfIn PDF document text
    • https://cdn.sqhk.co/mawedabe/VIyrWup/durusimu.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4493245/normal_5fbcfac37d10c.pdfIn PDF document text
    • https://cdn.sqhk.co/numovasovev/iahhBij/maxobabiguxutemurole.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4370529/normal_5fd0f63059527.pdfIn PDF document text
    • https://turetajonu.weebly.com/uploads/1/3/4/6/134629909/05825c8f2ce88b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4421217/normal_5f99ebf6558cd.pdfIn PDF document text
    • https://xatawozenovug.weebly.com/uploads/1/3/4/8/134886035/7785796.pdfIn PDF document text
    • https://vadurevagide.weebly.com/uploads/1/3/3/9/133999829/6030049.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368984/normal_5f8f2c9bdb5b0.pdfIn PDF document text
    • https://wanalupegekiful.weebly.com/uploads/1/3/4/8/134879682/zaliwobudevanaru.pdfIn PDF document text
    • https://jubunukaf.weebly.com/uploads/1/3/1/4/131483214/xorewowezojevav.pdfIn PDF document text
    • https://potemoguzoka.weebly.com/uploads/1/3/4/6/134646314/rujavixesuvegu.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/petubapizo/android_10_launcher_gestures.pdfIn PDF document text
    • https://s3.amazonaws.com/zafirawit/streamline_english_4.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_off0000c902.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC902 4956 bytes
SHA-256: 6ddb600566c454a9c9fb9c7c8f89bb137ea4f5f7e7618cbc42d7343a06bac9b6
font_01_sfnt_off0000d8e8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD8E8 11896 bytes
SHA-256: 20ea59f17c0b943fdf9b8f9d1b954782df9f046afcda6111566aefe97c430715
font_02_sfnt_off00010030.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10030 4324 bytes
SHA-256: 4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3

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