Malicious PDF — malware analysis report

Static analysis result for SHA-256 04c79b8a6b2d3028…

MALICIOUS

PDF

76.0 KB Created: 2021-02-22 07:08:39 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: b906b7065d311f0bc16f0ed0dc928e06 SHA-1: d33e5bd4165b5a77d3ed375f84dad2d2afd58563 SHA-256: 04c79b8a6b2d302843331ffe268c55b072fa00d619b1a16a1f376f9fd0ef6f7a
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://jottigo.ru/wb?keyword=panasonic%20dmc-sz7%20user%20manual PDF link annotation
    • http://hookup753.fun/ejercicios_de_ortografia_para_nioskx9d1.pdfIn PDF document text
    • https://cdn.sqhk.co/zotofoza/hf1MCOq/tower_crush_hack_mod_apk_download.pdfIn PDF document text
    • https://cdn.sqhk.co/jawezumate/Kiievjc/didabefivikidoxari.pdfIn PDF document text
    • https://cdn.sqhk.co/feletitami/FjiIT1H/85951963002.pdfIn PDF document text
    • http://xamakag.iblogger.org/xiwumidogelava.pdfIn PDF document text
    • http://govnosiakxws.online/the_lottery_ticket_characters_with_descriptionmrwfv.pdfIn PDF document text
    • http://uber-global.com/lideromopesujozezslb.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/mefadedosuw/gegasuviwanusepipu.pdfIn PDF document text
    • http://kevusej.epizy.com/revista_guia_do_estudante_atualidades_2019.pdfIn PDF document text
    • http://xafinoligu.epizy.com/balanced_body_allegro_reformer_used.pdfIn PDF document text
    • http://rogofijanititad.epizy.com/dizizok.pdfIn PDF document text
    • https://s3.amazonaws.com/suzujewa/chrome_extensions_album.pdfIn PDF document text
    • http://mixipazotan.epizy.com/43203922257.pdfIn PDF document text
    • http://ruxududomaba.epizy.com/rawora.pdfIn PDF document text
    • https://s3.amazonaws.com/batoragubukepo/livro_de_direitos_autorais.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_off0000eba2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEBA2 5248 bytes
SHA-256: 0eb63150129e63369db1c0d767d808af9d14d148b060b424135ac184dc1f329e
font_01_sfnt_off0000fd73.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFD73 11224 bytes
SHA-256: d147571c52fe4fd440c6404e543092d8dcb087ea41bc54dffddb5cb6ea64e885