Malicious PDF — malware analysis report

Static analysis result for SHA-256 b897261e68d6ff29…

MALICIOUS

PDF

72.2 KB Created: 2021-03-14 16:22:13 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 12ba1b1164ab5db3d577c0636e206733 SHA-1: 842c9bb60ec5b890e2609c8083b3573016572c64 SHA-256: b897261e68d6ff29ae81e84679bed8f42b32cb2c235e58fa06cb4c46f6f3de12
126 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The sample was flagged by ML and ClamAV as malicious, with heuristics indicating it functions as a link farm on disposable hosting. The embedded URLs, such as https://botokaw.ru/wix?keyword=george+donaldson+net+worth, suggest a phishing or content-luring attempt. Although no scripts were explicitly extracted, the PDF structure and numerous external links point towards a malicious intent 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 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://botokaw.ru/wix?keyword=george+donaldson+net+worth PDF link annotation
    • http://vuxokiwi.22web.org/bolox.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4475737/normal_5fdd97b5e64b9.pdfIn PDF document text
    • http://dmgameplan.com/740499698776lma6.pdfIn PDF document text
    • http://studytogether.fun/kitchenware_list_items0o4mx.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4369516/normal_5fde0dca94c06.pdfIn PDF document text
    • http://boothattendant.com/sans_top_20_critical_security_controls_20194358s.pdfIn PDF document text
    • http://hempmap.ru/tewulepurasawamofumuko5g0w.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://kajuwipaf.epizy.com/application_for_schengen_visa_arabic.pdfIn PDF document text
    • http://lipepojofutuxuf.epizy.com/how_to_teach_piano_to_beginner_adults.pdfIn PDF document text
    • http://kelawezup.rf.gd/mizujizukinilukupawudeded.pdfIn PDF document text
    • http://zurutoraxavifes.rf.gd/muzoratipunufir.pdfIn PDF document text
    • http://fidomibudirej.rf.gd/templates_for_tombstone_unveiling_invitation_cards.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c885c26c-ba02-4c52-80fe-9222b4fcccc4/3272895400.pdfIn PDF document text
    • http://dojidusajotat.epizy.com/gatogununerigigawidunuke.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ff819fcd-ed4f-4b94-a46e-e2d7e272da81/what_is_the_xia_dynasty_best_known_for.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8ee7880b-bd39-42be-a170-80ad4f05edc1/is_nitecore_a_good_flashlight.pdfIn PDF document text
    • http://beralopijabeziz.rf.gd/60539492136.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 5

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_off0000dadc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDADC 5212 bytes
SHA-256: abdaec6a8b01e53b52d34427bd120554ba12b2ecdd86a652b90af3e44576e025
font_01_sfnt_off0000ec9f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEC9F 11068 bytes
SHA-256: d24c06d1a0b66e4430a5aed4619b0e33822494055542044b4074a6baacbc565c

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