Malicious PDF — malware analysis report

Static analysis result for SHA-256 ade2efeb39a0d9af…

MALICIOUS

PDF

77.9 KB Created: 2021-03-04 20:05:50 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-15
MD5: 6cc520ea548f2b00f155d8a893a7b866 SHA-1: e9f5e8a10c460f28db0c3def2cb4fe7d9536ce91 SHA-256: ade2efeb39a0d9afc6dbee95c54dfd9c5481d679852e20cd82c1611b17f4f86f
126 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF file was flagged by ClamAV as Pdf.Phishing.Trojan and a machine learning classifier indicated a high probability of maliciousness. The document contains numerous embedded URLs, many pointing to disposable domains, suggesting a link farm or phishing infrastructure. The presence of external URIs and the overall structure strongly indicate a phishing or malware distribution attempt.

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://dafemum.ru/strik?utm_term=badger+5+disposal+troubleshooting PDF link annotation
    • http://yoga-italy.space/106090542676xbjk.pdfIn PDF document text
    • https://cdn.sqhk.co/nuroteditu/i5jfyQK/live_stream_nfl_monday_night_football.pdfIn PDF document text
    • https://cdn.sqhk.co/tajiwikiter/MaefShh/3963986499.pdfIn PDF document text
    • http://winwites.space/vih_articulos_cientificostb8q5.pdfIn PDF document text
    • http://witaseru.iblogger.org/mikisedopufepo.pdfIn PDF document text
    • http://luranowebereni.22web.org/avid_pro_tools_full_version_free.pdfIn PDF document text
    • https://cdn.sqhk.co/bugolajoxodu/djgP7V1/harvest_definition_hunting.pdfIn PDF document text
    • http://ejinaya.com/wujebugunenodejajajtpkvm.pdfIn PDF document text
    • https://cdn.sqhk.co/madufuxenuw/hhgfjhv/hip_hop_music_artists_90s.pdfIn PDF document text
    • http://dhl-order.info/drive_simulator_2_apk_modgiov1.pdfIn PDF document text
    • https://cdn.sqhk.co/dufubimaru/idjdifY/mofavevafokamalejajevitit.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://duxurajixi.rf.gd/fenix_2.0_vaporizer_manual.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0b11fbcf-c5cd-44b1-aa31-0bbdf52cf7df/application_gratuite_grammaire_franaise.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a9e8898e-2ad0-45f7-8542-8c1767295bb3/derigosawajujitur.pdfIn PDF document text
    • http://zogojazaje.rf.gd/4768610170.pdfIn PDF document text
    • http://fadevosozegula.epizy.com/aliments_sans_gluten.pdfIn PDF document text
    • http://jiboleramar.epizy.com/68033593474.pdfIn PDF document text
    • http://fasilew.epizy.com/62194096288.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7553ad2b-ad42-43af-a916-7c7ec3081cba/xozedosarozewara.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/19c0c4cb-6041-4c48-93b7-09e48c60421d/xefilevixowujizi.pdfIn PDF document text
    • http://buzetori.epizy.com/92034230813.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d4cedeef-1252-4f40-a3a3-7b4d336810fa/jacuzzi_laser_sand_filter_parts.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_off0000f1f4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF1F4 5536 bytes
SHA-256: d478318a1cc152fa5971fcdb87349f4ce2abd7cd5035bb1cf521023d96db44e6
font_01_sfnt_off000104b9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x104B9 10964 bytes
SHA-256: 3a8c4da73b67b71ff23b2ac8cdc2a95bc5c2b83e91eb3b5650852ffbf5400993

Open this report in the interactive analyzer, or submit your own file for analysis.