Malicious PDF — malware analysis report

Static analysis result for SHA-256 e1b8e24462a4ab18…

MALICIOUS

PDF

73.5 KB Created: 2021-02-02 00:02:42 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: f37f3dde077ced0670a0d36997bdf18d SHA-1: 90d6f35349b6620f358734fe9ce133897d7c2b66 SHA-256: e1b8e24462a4ab18064c8176afc89956e85f58f7bf18d2e6b30e734ba4c48421
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://bologen.ru/123?utm_term=which+one+are+you+in+spanish PDF link annotation
    • http://ziviludemedo.iblogger.org/black_and_red_wallpaper_for_mobile.pdfIn PDF document text
    • https://cdn.sqhk.co/zasokolof/geBz8o6/64647671384.pdfIn PDF document text
    • https://cdn.sqhk.co/fakupavod/RNsxEsY/71820560051.pdfIn PDF document text
    • https://timowerudep.weebly.com/uploads/1/3/0/7/130738780/7d717719f04d3.pdfIn PDF document text
    • https://dumidonawusirug.weebly.com/uploads/1/3/5/3/135306770/bigaxagivovi_nisamisep_bagurofukivaxe_gewigabopi.pdfIn PDF document text
    • http://xabisafeb.22web.org/jutizisavetibepotuw.pdfIn PDF document text
    • https://patewowuxafopon.weebly.com/uploads/1/3/4/5/134595548/zalujepu.pdfIn PDF document text
    • https://cdn.sqhk.co/baxafapunubi/cuggWhb/trivia_bingo_free_bingo_games_to_play_offline.pdfIn PDF document text
    • http://arendaavto.taxi/fififafufamelozuv1sm6.pdfIn PDF document text
    • http://steelsho1.club/wiramegenusopakelodezd9l6.pdfIn PDF document text
    • https://rojofasefimo.weebly.com/uploads/1/3/1/6/131636828/bedevapesed.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/buganabowumujef/katenujokitezidozodaj.pdfIn PDF document text
    • http://fuvituze.epizy.com/49932386932.pdfIn PDF document text
    • http://wazododasexixak.rf.gd/busbar_design_calculation.pdfIn PDF document text
    • http://nibudikugi.epizy.com/vifozep.pdfIn PDF document text
    • https://s3.amazonaws.com/tixeligufokup/14636969989.pdfIn PDF document text
    • http://zasegusof.epizy.com/hide_google_map_api_key_android.pdfIn PDF document text
    • https://s3.amazonaws.com/subopukomanaw/retinoblastoma_genetics.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_off0000ddad.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDDAD 5104 bytes
SHA-256: 46225990b883f3bb89ed84310fe566077518b4b6f2fbbb5e9785869c52f8b3aa
font_01_sfnt_off0000ef1c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEF1C 12788 bytes
SHA-256: 055795f741badb0cf04a06ed33b131b393c19ba5cde6b4cf3964aaa3df6aae18