Malicious PDF — malware analysis report

Static analysis result for SHA-256 6c8688b70b4126d2…

MALICIOUS

PDF

71.7 KB Created: 2021-02-07 20:36:47 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 386d72de5efe5eb20914bd9657ccde72 SHA-1: 13f2aa2d673e00570389e2bc9d803b1fe4e2707e SHA-256: 6c8688b70b4126d214c9786c3aacf3a5ad2dca4fa888a17fd1cbce318b147d95
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://baarspo.ru/aws?utm_term=naruto+3d+games+apk PDF link annotation
    • http://dusixose.22web.org/firefox_android_cannot_install_addons.pdfIn PDF document text
    • https://cdn.sqhk.co/simunenij/ggN5tjb/razudoseperemodabozon.pdfIn PDF document text
    • http://vutaturubodud.22web.org/lagu_balungan_kere_ndarboy_live.pdfIn PDF document text
    • https://cdn.sqhk.co/besiwowegin/hgicjhD/70183708393.pdfIn PDF document text
    • http://donuliwobem.iblogger.org/62068122844.pdfIn PDF document text
    • http://finovadi.iblogger.org/ministry_of_finance_annual_report_2013-_14.pdfIn PDF document text
    • https://cdn.sqhk.co/farafakilof/cADegfK/now_showing_movie_sign_template.pdfIn PDF document text
    • https://cdn.sqhk.co/notizejamebo/Liiiiih/73628496411.pdfIn PDF document text
    • https://cdn.sqhk.co/darekomeguv/jbyiaif/wisul.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://mamuzov.rf.gd/dushman_1971_movie_songs_free.pdfIn PDF document text
    • http://wubulinefoz.rf.gd/77280539386.pdfIn PDF document text
    • http://rozazidugo.epizy.com/yagi_uda_antenna_theory.pdfIn PDF document text
    • http://fuxodenajakifut.epizy.com/97569483720.pdfIn PDF document text
    • https://s3.amazonaws.com/vapelurowar/andes_mints_nutrition_information.pdfIn PDF document text
    • http://pexevogawi.epizy.com/best_spy_video_recorder_apk.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_off0000da82.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDA82 5444 bytes
SHA-256: 588b404940c5bb776c459dec17879222353639c3524983a63a87648aa3136f1d
font_01_sfnt_off0000ecfc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xECFC 10564 bytes
SHA-256: 688e1b4bc63e39ced7782ca9b6ba31976f7e010ab75ed24b57461225e7224b17