Malicious PDF — malware analysis report

Static analysis result for SHA-256 e5c0286660cf553c…

MALICIOUS

PDF

68.4 KB Created: 2021-02-02 12:38:58 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: b08ba29f855583e87026f47730195f11 SHA-1: a9e1eb0097eb193058b2f277c4fb4b6614994a96 SHA-256: e5c0286660cf553c8fe3c6f75186d50878e3ee09a31a33e3383e559d3c3e4718
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • 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 contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://jacksth.ru/123?utm_term=clumsy+ninja+hack+2020 PDF link annotation
    • https://xuzonikafu.weebly.com/uploads/1/3/5/3/135351414/jepopozezutuked_kitasoxe_wakorugopuxe_bokeluzades.pdfIn PDF document text
    • http://texulateniz.iblogger.org/36536196688.pdfIn PDF document text
    • http://dragonflysagewellness.com/zupizf3nyd.pdfIn PDF document text
    • https://cdn.sqhk.co/tiwopaperuv/1THnVjj/gikes.pdfIn PDF document text
    • https://cdn.sqhk.co/letonolomo/dhyYge4/46737296709.pdfIn PDF document text
    • https://jonaduxito.weebly.com/uploads/1/3/1/3/131384171/lasomop-zeripisobegalov-gobodulolirus-febup.pdfIn PDF document text
    • https://bonawuxuje.weebly.com/uploads/1/3/0/7/130776103/jomima.pdfIn PDF document text
    • https://basitonivi.weebly.com/uploads/1/3/4/5/134584834/7341701.pdfIn PDF document text
    • https://cdn.sqhk.co/danexili/ghege3b/nejedojumaja.pdfIn PDF document text
    • https://wogalipa.weebly.com/uploads/1/3/4/3/134316604/b83cc10a79d57e.pdfIn PDF document text
    • https://tunuwadubozowe.weebly.com/uploads/1/3/4/3/134363043/0e9742b.pdfIn PDF document text
    • http://umkatrade.ru/bad_meets_evil_hell_the_sequel_album_download_zipdtwrw.pdfIn PDF document text
    • http://maxist.ru/android_pendingintent_notification_example13dmj.pdfIn PDF document text
    • http://honey-love.ru/descargar_musica_de_los_temerarioswcl1s.pdfIn PDF document text
    • https://senorori.weebly.com/uploads/1/3/4/6/134641151/japarul.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://nefigubisi.epizy.com/74910335358.pdfIn PDF document text
    • http://wafogaz.rf.gd/19037527056.pdfIn PDF document text
    • http://mudefikireneb.rf.gd/unsalted_butter_nutrition_information.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_off0000d051.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD051 5364 bytes
SHA-256: 15a5891a5d8eae63d30d501777198b577ac5f29a50559f2578ef81b3dfd499b7
font_01_sfnt_off0000e26c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE26C 10040 bytes
SHA-256: d6327de2f52ede9fb75ce406eafd549be7a0a0e2e94313e812227b7ff0f780cf

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