Malicious PDF — malware analysis report

Static analysis result for SHA-256 e38b06cdbe9bcaf1…

MALICIOUS

PDF

110.4 KB Created: 2021-03-20 07:14:08 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 18e19b0593199b7d9910b31dd7892db8 SHA-1: 65a3302dd1651527944ee46de11a27d128ef386b SHA-256: e38b06cdbe9bcaf11c39410cf2c5f9014d22888454850aaeb959e889b5c183aa
126 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF contains numerous links to disposable hosting domains, a common tactic for phishing or malware distribution. The ML classifier and ClamAV detection strongly indicate malicious intent, likely related to phishing or serving a malicious payload. Although no scripts were explicitly extracted, the PDF structure and URL patterns suggest it's designed to redirect users to malicious 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 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.
  • 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://nipisod.ru/award?keyword=refraction+of+light+class+11+notes+pdf+download PDF link annotation
    • http://bioforcecolumbia.site/javobimezapudarufaxedajyknq1.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4425501/normal_602b029189a7c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4453901/normal_6021a04d7d957.pdfIn PDF document text
    • http://zabekoreju.iblogger.org/45009685669.pdfIn PDF document text
    • http://ig-support-service.com/90954356776mithi.pdfIn PDF document text
    • http://kotiwiwax.iblogger.org/tapebililu.pdfIn PDF document text
    • http://nelawetazabuta.66ghz.com/fajavose.pdfIn PDF document text
    • http://gooddevice-online.com/where_can_i_buy_cheap_chest_freezere712y.pdfIn PDF document text
    • http://bajifepeselok.sportsontheweb.net/22766454621.pdfIn PDF document text
    • https://s3.amazonaws.com/tikofaketonub/tebowebekulise.pdfIn PDF document text
    • https://s3.amazonaws.com/limewub/69585331816.pdfIn PDF document text
    • https://s3.amazonaws.com/gonafoziguwewe/los_adjetivos_demostrativos_worksheet.pdfIn PDF document text
    • http://takavejesutep.iblogger.org/vigazov.pdfIn PDF document text
    • http://eroganoficial.site/63480724427js9is.pdfIn PDF document text
    • http://fekevopimibun.sportsontheweb.net/vepumesawamabalupavu.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://ravizovagusemav.epizy.com/microsoft_excel_2020_training_manual.pdfIn PDF document text
    • http://pavafisufopu.myartsonline.com/zapumojodatuku.pdfIn PDF document text
    • http://rowoniwetob.atwebpages.com/bojizofepexu.pdfIn PDF document text
    • http://nokarox.rf.gd/90670115400.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Related samples 8

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

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0001563b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1563B 5568 bytes
SHA-256: 81eeadaa47f561b14a4bcef540a8adb6198b918b65bcc8d097d38aa9596e4c41
font_01_sfnt_off0001693e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1693E 13240 bytes
SHA-256: e7fb5d05d642da5ab76202dcb54f2214c703f297dbf7a257071c6d0af3516ca1
font_02_sfnt_off00019684.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x19684 16128 bytes
SHA-256: 912810d83e1329c5b7c28468a93f9d6f76e9af1121491381c6555e9c9326e0fd

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