Malicious PDF — malware analysis report

Static analysis result for SHA-256 0deae22233f4aa59…

MALICIOUS

PDF

122.8 KB Created: 2021-02-27 00:50:27 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-03
MD5: f0537b30d9c2cfb3a51a54458e2bc7ac SHA-1: 4243ab8dc5adfe2506e5dfa3b58e12c74b2ea0a8 SHA-256: 0deae22233f4aa59e8549b2fb38e1d03e8126b8d33fae57ee9651877fb6f27b5
126 Risk Score

Malware Insights

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

The sample was flagged by ML and ClamAV as malicious, specifically as a phishing trojan. It contains numerous external URIs, many of which are hosted on disposable domains, indicating a link farm designed to redirect users to malicious content. The PDF's structure and embedded URLs suggest it's part of a phishing campaign, likely attempting to trick users into visiting compromised or malicious websites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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://midufefew.ru/123?utm_term=electronic+health+records+policy+and+procedures PDF link annotation
    • http://bagerisevi.scienceontheweb.net/batufami.pdfIn PDF document text
    • http://woziwowariv.sportsontheweb.net/best_online_certificate_programs_free.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4464870/normal_5ffce0a188b4f.pdfIn PDF document text
    • http://kanaxade.mygamesonline.org/35708460911.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4381297/normal_601b978312bee.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4369519/normal_5fcef66fd2bbd.pdfIn PDF document text
    • http://pedaxofanor.mywebcommunity.org/review_slouching_towards_bethlehem.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4382192/normal_6014329e1881d.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://sulorowanutabu.atwebpages.com/will_the_book_red_queen_become_a_movie.pdfIn PDF document text
    • http://dakovupogoz.rf.gd/how_likely_is_the_big_bang_theory.pdfIn PDF document text
    • http://rinexaxar.rf.gd/2439138781.pdfIn PDF document text
    • http://lesuzikabe.epizy.com/the_rational_male_book_summary.pdfIn PDF document text
    • http://makakanow.onlinewebshop.net/3979686900.pdfIn PDF document text
    • http://vekokegam.rf.gd/omron_h3cr_f8_twin_timer.pdfIn PDF document text
    • http://kexeban.rf.gd/zujuduvikagulonajofenif.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_off0001a2a1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1A2A1 5220 bytes
SHA-256: d17e3db5ee45ce18eecc5e4555f2d5263d33e942a1c2e0bbb6dadf4b132ce3b3
font_01_sfnt_off0001b462.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1B462 12116 bytes
SHA-256: 5eca7d8a60284c5329ed2acf7a655402537720d395615080c7c767dac587f738

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