Malicious PDF — malware analysis report

Static analysis result for SHA-256 d5de2ecb75422473…

MALICIOUS

PDF

70.4 KB Created: 2021-02-24 17:05:54 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 3e98220ee636bce0de309001338c4b09 SHA-1: d97fc01647c9dd4fbd4f6140838794624e051a40 SHA-256: d5de2ecb754224739e0cffbd5b9e19dbad96759fa27ec771c3b0e387c66254df
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://bologen.ru/123?utm_term=play+star+wars+the+old+republic+online PDF link annotation
    • http://felidefewipikig.22web.org/zuvefufes.pdfIn PDF document text
    • https://pigebatidi.weebly.com/uploads/1/3/1/4/131482999/joditevarusov.pdfIn PDF document text
    • http://womenita.fun/balance_sheet_practice_problems_with_answersjwpm7.pdfIn PDF document text
    • http://am-sound.ru/griswold_inn_storeeci2y.pdfIn PDF document text
    • https://zotizoju.weebly.com/uploads/1/3/5/3/135349435/6410428.pdfIn PDF document text
    • http://fabermanufacture.ru/resumen_del_libro_el_principito_capitulo_11uubwu.pdfIn PDF document text
    • http://qwertyujg.xyz/40806982727l8zjk.pdfIn PDF document text
    • http://item-get.top/present_perfect_and_past_simple_exercises_with_answers1miav.pdfIn PDF document text
    • http://instapriz24.site/46959299226qkkab.pdfIn PDF document text
    • https://cdn.sqhk.co/bobavijiwoba/6hjugic/murafebu.pdfIn PDF document text
    • https://cdn.sqhk.co/gofelaxes/gh123rK/download_game_cn_superstar_soccer_goal_free.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://vinixozu.rf.gd/cancer_de_pulmon.pdfIn PDF document text
    • http://wisubiko.rf.gd/appraisee_comments_on_appraisal_form_examples.pdfIn PDF document text
    • http://dizoxijip.rf.gd/nursery_rhymes_kid_songs_free.pdfIn PDF document text
    • http://xewepipesu.epizy.com/american_literature_journal_submissions.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_off0000d4ad.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD4AD 5496 bytes
SHA-256: f8c29da1c300a903942a1914765af9248e850287c6737b0d5c34387aec03739d
font_01_sfnt_off0000e763.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE763 10908 bytes
SHA-256: 7150ec3a368ed26e0636fd48fc3ae6ada0abbba665e80b48d667ac848acec639