Malicious PDF — malware analysis report

Static analysis result for SHA-256 5bba55dd59381165…

MALICIOUS

PDF

71.2 KB Created: 2021-03-27 14:39:59 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 6240f2bf7ce0ed028b6c3334779a474e SHA-1: dbc1ddfae44049e9c9eb365eac788c5d63f1f094 SHA-256: 5bba55dd59381165cc181b9060c2d8311c64be11f6b89693c2ffea6e4a62afcc
186 Risk Score

Malware Insights

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

The PDF document exhibits characteristics of a link farm, containing a large number of external links, many pointing to disposable hosting. The ClamAV detection and ML classifier strongly indicate malicious intent, likely phishing or malware distribution. While no scripts were directly extracted, the embedded URLs and the nature of the link farm suggest an attempt to redirect users to malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9960

Heuristics 6

  • 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.
  • 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://soxebez.ru/wix?keyword=spooby+t+rex PDF link annotation
    • https://jatisarekitikez.weebly.com/uploads/1/3/4/6/134661612/tafuwunitukowepuk.pdfIn PDF document text
    • https://jazediwugitali.weebly.com/uploads/1/3/4/7/134730671/7687130.pdfIn PDF document text
    • http://br1.red/sample_performance_evaluation_phrases_for_employees7o8tr.pdfIn PDF document text
    • http://asia.kiwi/monster_girl_encyclopedia_wiki_kobolduyax0.pdfIn PDF document text
    • http://tojumuwuluso.iblogger.org/maths_app_graphing_calculator_pro_apk.pdfIn PDF document text
    • http://pollsexpert.com/21271150163hhc0n.pdfIn PDF document text
    • https://rixutabenenik.weebly.com/uploads/1/3/4/4/134498467/kotepivufe.pdfIn PDF document text
    • http://lavka-karamel.ru/biguanides_davispdniy.pdfIn PDF document text
    • http://lnstagram-blue-ticks.com/add_note_to_walmart_grocery_orderp23ox.pdfIn PDF document text
    • https://simisasokudu.weebly.com/uploads/1/3/4/2/134235492/9818020.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://c78267de-509c-4cb0-9394-6b21b7876e04.filesusr.com/ugd/290ce3_2b3b663ebcb9463aa34b91797360ae0c.pdf?index=trueIn PDF document text
    • https://ea29520f-fefa-4c12-ab21-0e0839e82572.filesusr.com/ugd/5d2047_c74f71be639645a1bdd24a343de1338c.pdf?index=trueIn PDF document text
    • https://feedbc21-cb93-402c-9ae2-3476589645d2.filesusr.com/ugd/f3ecbe_aac150d89141413591110f37b057ae1f.pdf?index=trueIn PDF document text
    • https://71fc3d66-43b2-4ae0-adc3-dfbcdf8b5360.filesusr.com/ugd/6605a0_028fac9261454ac382f251d3fa00eefe.pdf?index=trueIn PDF document text
    • https://72cee60b-533f-4fda-9f40-87b1bb6f0553.filesusr.com/ugd/590778_3ab7158d005646a3ab01870a9705e72b.pdf?index=trueIn PDF document text
    • https://e8e87dc5-637d-47ba-9de6-e7d98d123d78.filesusr.com/ugd/a69a03_8afe5e89194048de8ff89d766b07608a.pdf?index=trueIn PDF document text
    • https://02408c19-b9f6-4996-a596-1d5b7e46c8d3.filesusr.com/ugd/c83fdb_97449cc4b54241e5994bda82036562c0.pdf?index=trueIn PDF document text
    • https://d99d9bf7-a5e0-49f2-90ac-0d1bc881463d.filesusr.com/ugd/0182ef_1c9edbc2c4fb4f57ab9ef68e27865f45.pdf?index=trueIn PDF document text
    • https://5a20c861-23fd-468b-888e-078c5342874f.filesusr.com/ugd/924841_e8aa9c608e84431e9c9b44224e693dab.pdf?index=trueIn PDF document text
    • http://jikapepikedamum.epizy.com/sivamivadezuwe.pdfIn PDF document text
    • https://1923692e-f727-4f58-80a8-3583160180e3.filesusr.com/ugd/c4ccc4_9fc2ef88806c42858dc0c8b821a0bd4a.pdf?index=trueIn PDF document text
    • https://e114ad41-1367-46fe-a5fd-427bf640f69d.filesusr.com/ugd/a63c55_9fed9591daf5409fada78cec3d3f6576.pdf?index=trueIn PDF document text
    • http://jefesati.rf.gd/reglamento_local_de_las_asambleas_de_dios_republica_dominicana.pdfIn PDF document text
    • https://e1c07d4e-6587-4767-b76f-5dea9cf3e327.filesusr.com/ugd/51a829_2ef983f5207b4e22b69cb5c8c6d399ba.pdf?index=trueIn PDF document text
    • https://ecf1b359-4982-44d9-836f-7e6f5fec4aa1.filesusr.com/ugd/da15c8_b97664e9d6944e23903b283ad536b708.pdf?index=trueIn PDF document text
    • http://tibupud.epizy.com/bergen_social_media_addiction_scale_questionnaire.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000db93.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDB93 4804 bytes
SHA-256: aefe03a8e43eddcecc2b27c2a34638e154c42b31c0bb06b728a540273a90494a
font_01_sfnt_off0000ec02.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEC02 10388 bytes
SHA-256: fd50bbe0910ad3f55518deec08870a4709a13c9508be0a131c0757a00104139e