Malicious PDF — malware analysis report

Static analysis result for SHA-256 5be5dbb2d7f02cab…

MALICIOUS

PDF

111.6 KB Created: 2021-03-14 00:33:29 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-04
MD5: a7f1b4ba8680dd29458862b2ccc27925 SHA-1: b50831273f0601aa0a29311c7cd5f0c77fc2d133 SHA-256: 5be5dbb2d7f02cab49b01513a62f6d32f3ff7dca16c8cebfe70939b3418ae47e
126 Risk Score

Malware Insights

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

The sample was detected as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It contains numerous external URIs pointing to disposable hosting, suggesting a link farm or phishing lure. The PDF_SEO_DISPOSABLE_LINK_FARM heuristic specifically flags this behavior. While no scripts were explicitly extracted, the presence of embedded URLs and the overall structure strongly suggest the PDF is intended to redirect users to malicious websites, likely for credential harvesting or further payload delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

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://lozipotod.ru/award?keyword=unipolarity+bipolarity+and+multipolarity+pdf PDF link annotation
    • https://cdn.sqhk.co/tanusulirava/gtOQgjz/chess_coach_pro_download.pdfIn PDF document text
    • http://daravto18.ru/samsung_bluetooth_hm1350_manual3mhda.pdfIn PDF document text
    • http://idealica-ordina.site/83189143854y072a.pdfIn PDF document text
    • http://savadaqwe.space/100_years_war_duration9d7am.pdfIn PDF document text
    • http://mastera-saydinga.ru/2356848666znq1f.pdfIn PDF document text
    • https://s3.amazonaws.com/zowejunef/beer_bottle_neck_labels_template.pdfIn PDF document text
    • http://mysteps.online/67060055605ijt4y.pdfIn PDF document text
    • https://cdn.sqhk.co/sugutomipu/7sJZ3id/short_life_quotes_2020.pdfIn PDF document text
    • http://storeyou.store/formato_de_informe_de_revision_por_la_direccionhik8t.pdfIn PDF document text
    • https://tisawotaw.weebly.com/uploads/1/3/5/9/135993845/3610660.pdfIn PDF document text
    • http://neyroskakalka.site/zilisojexiwumonikufizozyhl8r.pdfIn PDF document text
    • https://s3.amazonaws.com/vuxagixil/amsterdam_airport_layover_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/wudibirewuduto/vevezexovog.pdfIn PDF document text
    • http://sqrab.top/using_if_function_in_excelf6pa8.pdfIn PDF document text
    • https://s3.amazonaws.com/sobaketemu/company_recommendation_letter_sample.pdfIn PDF document text
    • http://helplnstagram-confirm.com/89557224688hj0hs.pdfIn PDF document text
    • https://jemijibiwozigep.weebly.com/uploads/1/3/4/8/134855884/wunagabativotuzo.pdfIn PDF document text
    • https://dodarumobite.weebly.com/uploads/1/3/1/4/131437296/xuxafususewil_tejupeme_xopineniboto_pikategifo.pdfIn PDF document text
    • https://wokiliga.weebly.com/uploads/1/3/0/8/130814475/nexugurer.pdfIn PDF document text
    • http://tryne.xyz/89916947242hxeg5.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://tiruweditivunaw.myartsonline.com/tonight_west_side_story_piano.pdfIn PDF document text
    • http://saxarivoje.onlinewebshop.net/how_to_set_citizen_eco_drive_wr100.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 8

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_off00017bbc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x17BBC 5240 bytes
SHA-256: 227a39425187edb39eb6ff435c75f82ed67e72cc375d32d46ee0bfe6e58b8c31
font_01_sfnt_off00018d7f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x18D7F 10188 bytes
SHA-256: 209f44ffa368e77c810176b70b01bf518c518cfd7cb70f262061c59a09cdc72e

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