Malicious PDF — malware analysis report

Static analysis result for SHA-256 9182076f22219723…

MALICIOUS

PDF

67.4 KB Created: 2021-02-25 15:50:27 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: e369a28df10096023557c40a29402b3c SHA-1: b26fbaa8d6e16e2c61820aa7a45b7093784ae2ef SHA-256: 9182076f22219723e1603fb86bea63e1831da02799fb612a47f46caedd8f6009
134 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://leonvi.ru/strik?utm_term=tye+tribbett+you+are+good+mp3 PDF link annotation
    • http://samo-katim.ru/nagaxibululoseridi7mv.pdfIn PDF document text
    • http://xewuxufulizifu.22web.org/xusonemazololufuki.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4392652/normal_6018c02b7c9d8.pdfIn PDF document text
    • https://molavose.weebly.com/uploads/1/3/5/3/135350427/juxukinigopivetelovu.pdfIn PDF document text
    • http://instacopyrightcenter.com/minecraft_1.8_indir_team_extremef9kvb.pdfIn PDF document text
    • http://nepifumawal.22web.org/comprehension_worksheets_for_2nd_graders.pdfIn PDF document text
    • http://niburufajanuto.sportsontheweb.net/91358411892.pdfIn PDF document text
    • https://puziwifatewir.weebly.com/uploads/1/3/4/7/134715637/5b297512cf62a1.pdfIn PDF document text
    • https://cdn.sqhk.co/renapudovi/c3Wjhij/minecraft_java_edition_servers_to_join.pdfIn PDF document text
    • https://timelasabo.weebly.com/uploads/1/3/4/3/134345700/6c6003b989bc52a.pdfIn PDF document text
    • https://cdn.sqhk.co/muruwake/6Vji6vf/dhoom_3_songs_lyrics.pdfIn PDF document text
    • http://rasezatoxefu.mygamesonline.org/kenotimubaju.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4452154/normal_5fc663bac8e96.pdfIn PDF document text
    • https://bodupakodekafas.weebly.com/uploads/1/3/2/6/132680796/tujimadumu.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://fogalefudomuj.epizy.com/dejufonugiw.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_off0000cb56.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCB56 5424 bytes
SHA-256: c5a58d101256105c3a49ac107a73d2ee9c6217b3d0689a9eba46025c0b3a37ec
font_01_sfnt_off0000ddb9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDDB9 10256 bytes
SHA-256: 0a5c3eb3a3250a6f8e2aaece2db7785bbf1c4ba66699b39527359b43d6a90688