Malicious PDF — malware analysis report

Static analysis result for SHA-256 2a5d160dbe48a935…

MALICIOUS

PDF

83.5 KB Created: 2021-03-29 15:45:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 808fedf4edbcd9a11adf32f377848e91 SHA-1: 88e17af465fb78e7f8aa8d8e6c363be3db6145bf SHA-256: 2a5d160dbe48a935d744ae54086ccc74c2408c0453f4157198da829451c8eb42
126 Risk Score

Malware Insights

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

The PDF file contains numerous embedded URLs, many pointing to disposable hosting and exhibiting link farm characteristics, suggesting a phishing or malware distribution attempt. The ML classifier and ClamAV detection strongly indicate malicious intent. While no scripts were explicitly extracted, the PDF structure and embedded URIs are indicative of a malicious document designed to redirect users to potentially harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9957

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://xezojetit.ru/strik?utm_term=a+song+of+ice+and+fire+book+6+read+online PDF link annotation
    • https://jawoxaze.weebly.com/uploads/1/3/0/9/130968973/611b94f9.pdfIn PDF document text
    • http://trycabinets.xyz/guitar_chords_for_bookdc0nu.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4374984/normal_5fc9610889da4.pdfIn PDF document text
    • http://santaparker.store/jeruriroj4r4bg.pdfIn PDF document text
    • http://my-favshopf.online/hidden_objects_sims_4_ps4k6vb1.pdfIn PDF document text
    • http://datifuxevewa.22web.org/fishing_weather_report_durban.pdfIn PDF document text
    • http://bopolubolef.mywebcommunity.org/52057864722.pdfIn PDF document text
    • https://zabavorurexezab.weebly.com/uploads/1/3/5/3/135314693/segolipusidufaz.pdfIn PDF document text
    • http://kevebofuru.medianewsonline.com/panduan_belajar_bahasa_arab.pdfIn PDF document text
    • https://jisasulozif.weebly.com/uploads/1/3/4/3/134371627/fanapojetivab.pdfIn PDF document text
    • http://tijijosopake.22web.org/sibudutedekuvaruwo.pdfIn PDF document text
    • http://sks-expertiza.ru/97031499052cjssj.pdfIn PDF document text
    • http://bapipakaroxi.22web.org/avira_antivirus_2019.pdfIn PDF document text
    • http://copyrights-notices-helps.com/99061358495rvzil.pdfIn PDF document text
    • http://robot3.site/realm_grinder_wiki_research_buildsqyp4o.pdfIn PDF document text
    • https://viwefinorix.weebly.com/uploads/1/3/0/8/130813514/mujede.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4475995/normal_5fd799fbeb95f.pdfIn PDF document text
    • http://idealslimitalia-oficial.site/dark_sun_5e_2020jcuq0.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4454163/normal_60615bdb3cd54.pdfIn PDF document text
    • https://puluzoxaxidu.weebly.com/uploads/1/3/2/6/132683087/2543560.pdfIn PDF document text
    • http://trokot-roznica.xyz/amcon_act_20198umbq.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4447097/normal_60041c2e2efaf.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4448339/normal_5fc867a516c90.pdfIn PDF document text
    • http://tezoxefakalexo.sportsontheweb.net/33316093340.pdfIn PDF document text
    • http://linza.media/enlever_mauvais_oeil_avec_oeufyjbcl.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://woranuganavot.myartsonline.com/simpson_ms61043_pressure_washer_reviews_2018.pdfIn PDF document text
    • http://pidezesu.rf.gd/kidde_smoke_alarm_model_1276_manual.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_off0001081e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1081E 5536 bytes
SHA-256: 25aab6e840d35c8bf81a87ef18255edc58feb661f9d90f7e75a0d2b76c557680
font_01_sfnt_off00011b08.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11B08 10884 bytes
SHA-256: 5fb65aa5386e30aa35f29ef1e18d22cef8d571eb363c9a6343b1427db6225b1b