Malicious PDF — malware analysis report

Static analysis result for SHA-256 c66eac444aea3347…

MALICIOUS

PDF

68.6 KB Created: 2021-03-03 07:19:49 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: b2fe500f29279969414c6296e55cfeca SHA-1: 37572f437ebc1de4aff54a429d0005898d00b9cc SHA-256: c66eac444aea3347416efb6308a0cad9cff2b276d650f276325b43ff65ebbd52
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://pelibifir.ru/award?keyword=22+clues+level+33 PDF link annotation
    • https://vubufogos.weebly.com/uploads/1/3/4/7/134766152/7631226.pdfIn PDF document text
    • http://vazosuzited.22web.org/lotatiruraku.pdfIn PDF document text
    • https://cdn.sqhk.co/rosomugimo/cmfieje/48454229028.pdfIn PDF document text
    • http://pivojowemetobiv.mywebcommunity.org/gimexizipi.pdfIn PDF document text
    • https://cdn.sqhk.co/mikedeto/5hiasKc/spellblade_match-_3_puzzle_rpg_mod.pdfIn PDF document text
    • http://dobewobezusisof.iblogger.org/audio-technica_at-lp120-usb_manuale_italiano.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://pitigapevede.onlinewebshop.net/the_boy_in_the_striped_pajamas_book_trailer.pdfIn PDF document text
    • http://subogerilazelo.atwebpages.com/que_es_dibujo_tecnico_urbanistico.pdfIn PDF document text
    • http://laganomezavarof.epizy.com/sirijipaserafi.pdfIn PDF document text
    • http://fobiwuna.epizy.com/anti_malware_gratis_android.pdfIn PDF document text
    • http://roluvad.epizy.com/29554266965.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_off0000d3d2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD3D2 4748 bytes
SHA-256: 37e07bd70488d84b863bf6ddd8ee7c37fa2f4a0dc4346627b56029eecd57ee07
font_01_sfnt_off0000e417.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE417 9936 bytes
SHA-256: 1ea311019035a700a4f6c009dcdb3066284d17582a63eab7cb56b779ca2a10a1