Malicious PDF — malware analysis report

Static analysis result for SHA-256 7e3ed70208e73ff2…

MALICIOUS

PDF

74.6 KB Created: 2021-04-02 12:43:03 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5143423b2434299a1f84296bae9f146b SHA-1: d0fe490d72564395d44ad436514afb088ea202a6 SHA-256: 7e3ed70208e73ff2142e9b524f5be1d83264fd6e936a256e61764466ba6eac6c
134 Risk Score

Malware Insights

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

The PDF document contains embedded URLs and heuristic firings indicating it is a link farm designed to redirect users. The ML classifier and ClamAV detection strongly suggest malicious intent, likely phishing or malware distribution. The document body, though heavily obfuscated, contains text related to 'contact panasonic uk support', reinforcing the lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • 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.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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=contact+panasonic+uk+support
    • http://esmoney.site/jobafupojurpktjo.pdf
    • https://cdn.sqhk.co/gojinuma/gdhjz4c/92610121239.pdf
    • http://life50it.pro/robert_monroe_hemi_sync_meditationve2sz.pdf
    • http://instacopyrighthelpteam.com/29820502925ep6k8.pdf
    • http://mivejuvididu.66ghz.com/85207500677.pdf
    • http://topplafond.xyz/69327052884jsjmd.pdf
    • https://cdn.sqhk.co/nowonipewo/CVjjvSs/dream_league_soccer_2019_kits_juventus_2018_19.pdf
    • http://blog-millionaire.buzz/american_parliamentary_debate_format77edc.pdf
    • http://fc-aromat.ru/fisuvijofezowuxooidoz.pdf
    • http://reactivaperu-2020.com/multiplication_worksheets_2nd_grade_arrayliu0o.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://jofikuv.atwebpages.com/gusuwabanurewuxegesiped.pdf
    • http://suredutika.rf.gd/60157938.pdf
    • http://tawaxinazaka.rf.gd/44481882416.pdf
    • http://nilevividik.rf.gd/52996988014.pdf
    • http://vasidafiro.epizy.com/hallmark_sense_sensibility_and_snowmen_cast.pdf
    • http://muliwavanebebo.onlinewebshop.net/resonance_chemistry_formula_booklet.pdf
    • http://wegudewabeko.rf.gd/2277226984.pdf
    • http://tosopipates.epizy.com/90614873930.pdf
    • http://demunoj.epizy.com/96435459616.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e5bf.bin
4e1a374b81300f9f25932f6b5e6f11638120dd9aceb7ed495325f85a18b1a609		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE5BF 4864 bytes
font_01_sfnt_off0000f659.bin
387763cb334fcc8e107c7eac08799e0752c086de25c1f2a0895d810f7dc4b17c		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF659 11508 bytes

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