Malicious PDF — malware analysis report

Static analysis result for SHA-256 04a0ca87370de33e…

MALICIOUS

PDF

70.9 KB Created: 2021-02-11 08:13:59 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-19
MD5: aef7874c1c64c5b9d8913bd41c5ee6d9 SHA-1: e91b7f9c228fccc3cd5dc3132e57f0e41d491b9a SHA-256: 04a0ca87370de33ecff9477551852f396e263f7b126124466bc7d754732fa8bf
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://seumenha.ru/123?utm_term=gacha+life+2+characters PDF link annotation
    • https://cdn.sqhk.co/verikiweneza/jaQjcic/49296344121.pdfIn PDF document text
    • http://bred-enligne.com/sweatshirt_template_vector_freewxosj.pdfIn PDF document text
    • http://ladyso.ru/pesakuwozanafowomifaro5699g.pdfIn PDF document text
    • http://infonewstravel.com/34631876802ttvgm.pdfIn PDF document text
    • http://passive-income.ru/31535957925iwtu1.pdfIn PDF document text
    • http://fito4ka.xyz/insert_multiple_rows_into_excel_spreadsheetqurfr.pdfIn PDF document text
    • http://pinudub.iblogger.org/battle_house_full_movie_hd.pdfIn PDF document text
    • https://cdn.sqhk.co/xexodaxafu/haIE6Dr/screen_recorder_for_iphone_5c.pdfIn PDF document text
    • http://lazadacostumercenter.com/free_able_christmas_borders_for_microsoft_wordy7qui.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://xipokawopigigig.epizy.com/35875773843.pdfIn PDF document text
    • http://namutogenasokab.epizy.com/30180678811.pdfIn PDF document text
    • https://s3.amazonaws.com/diwitapezu/roster_form_meaning_in_kannada.pdfIn PDF document text
    • http://vubimefiz.epizy.com/6511715479.pdfIn PDF document text
    • http://kakapefetabol.rf.gd/wotabaromiribuxeb.pdfIn PDF document text
    • http://midotujeg.rf.gd/91958859052.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_off0000d905.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD905 5132 bytes
SHA-256: b4aa081ef27e5df513847a8ced1a8a434528f66c8a2230c313de98ed34b971d0
font_01_sfnt_off0000ea79.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEA79 10704 bytes
SHA-256: b6fead9019eee4c05a4544b40237226531e1fe6170f68b9896b2712b4abc8422