Malicious PDF — malware analysis report

Static analysis result for SHA-256 06c94281da55b6b5…

MALICIOUS

PDF

79.4 KB Created: 2021-03-14 03:58:05 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-07-02
MD5: c9aa5a2d9d5ef8a233b0735ff90b9f56 SHA-1: 0fa43b78081b20e7226fc578b29bea9b09b0e322 SHA-256: 06c94281da55b6b5b93ee8f9a70885a50f934b36cb277c7561958ff254895611
126 Risk Score

Malware Insights

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

The PDF contains numerous embedded URLs, many pointing to disposable domains and identified as a link farm. The ML classifier and ClamAV detection strongly indicate malicious intent, likely for phishing or malware distribution. Although no scripts were explicitly extracted, the PDF structure and embedded URIs suggest it's designed to redirect users to malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9994

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://druttle.ru/wix?keyword=unexpected+kernel+mode+trap+league+of+legends PDF link annotation
    • https://cdn.sqhk.co/xibidodoko/faz4Yjh/fifetovoxajus.pdfIn PDF document text
    • https://cdn.sqhk.co/dugelabomaw/hbEIhbw/pawufezurinuf.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4481053/normal_5fd5f2133e1fd.pdfIn PDF document text
    • http://kuxixepiral.22web.org/magob.pdfIn PDF document text
    • http://mapotilij.mygamesonline.org/xabixuxuge.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4469101/normal_604993cab602b.pdfIn PDF document text
    • https://cdn.sqhk.co/zaniridut/ahhidic/background_hd_wallpapers_for_whatsapp.pdfIn PDF document text
    • http://vazawujuzu.sportsontheweb.net/james_and_the_giant_peach_summary_chapter_36.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4450630/normal_5fdaadde71092.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4483855/normal_5ffb6cb441bdd.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4455198/normal_5feb727722e69.pdfIn PDF document text
    • http://toselarasomax.iblogger.org/liz_ielts_reading_answer_sheet.pdfIn PDF document text
    • http://fafuzum.sportsontheweb.net/fuxokebibonapiwoxijejoniw.pdfIn PDF document text
    • http://nijubuwuw.iblogger.org/spider-_man_3_video_game_ppsspp.pdfIn PDF document text
    • http://vivoxasoro.22web.org/sokibikakitaweligalu.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4424645/normal_5fd36d016c066.pdfIn PDF document text
    • http://vuvulusigi.scienceontheweb.net/tugemadabobudetigoxinube.pdfIn PDF document text
    • http://muluvigopitego.22web.org/7705043105.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://vopodopo.rf.gd/addition_and_subtraction_of_decimals_worksheet.pdfIn PDF document text
    • http://gofosuxubajo.epizy.com/14332575455.pdfIn PDF document text
    • http://vufagozujidivu.epizy.com/warframe_cetus_fishing_guide.pdfIn PDF document text
    • http://sojoramuf.epizy.com/ansible_zip_file.pdfIn PDF document text
    • http://vubelifijam.atwebpages.com/switch_games_2020_rpg.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_off0000f58e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF58E 5600 bytes
SHA-256: e30e11bca1847b7a8380716ce54fdac792daf846f7cc69504fda1286b31738e1
font_01_sfnt_off00010891.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10891 11632 bytes
SHA-256: a5d262b0ca34898f081b358a922b62d1e7396aa5f5ff1e5e5e0acdace549d2d4

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