Malicious PDF — malware analysis report

Static analysis result for SHA-256 60a8ad45b51a242e…

MALICIOUS

PDF

70.4 KB Created: 2021-03-04 21:13:29 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: ae4f264a34744182ec4749857eb3dcaf SHA-1: 90b6ec3238de2122a3b0851eaf8f80e31e466ea8 SHA-256: 60a8ad45b51a242ee5710e8f7410b9328dda216997c3b7739c86060d2739f3ad
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

Heuristics 6

  • 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 contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://kuzutuzo.ru/wix?keyword=congruent+line+segments+worksheet+for+grade+3 PDF link annotation
    • https://cdn.sqhk.co/zarepowake/hR7ihfd/muxajebijalogojira.pdfIn PDF document text
    • https://soneputud.weebly.com/uploads/1/3/1/4/131411150/b9be02.pdfIn PDF document text
    • http://jepunigotamub.iblogger.org/neverending_story_falcor_pics.pdfIn PDF document text
    • https://cdn.sqhk.co/tororukiwuri/difIWif/fajigafidopixutujopidogos.pdfIn PDF document text
    • https://cdn.sqhk.co/jeforije/zhigKi1/54225948302.pdfIn PDF document text
    • https://cdn.sqhk.co/letopoto/cihiaje/ibis_paint_x_download_windows_xp.pdfIn PDF document text
    • https://cdn.sqhk.co/dolitife/6ieigje/64182501506.pdfIn PDF document text
    • https://cdn.sqhk.co/rapawaferew/ZNUhdVP/90032600547.pdfIn PDF document text
    • https://cdn.sqhk.co/bujavenizake/LOVgdQ5/nawuluforobinuso.pdfIn PDF document text
    • http://xefawojuj.mygamesonline.org/94125486752.pdfIn PDF document text
    • https://wiwufupa.weebly.com/uploads/1/3/2/8/132814928/kubenovozuwipopivime.pdfIn PDF document text
    • https://cdn.sqhk.co/ragojagef/lfhegfl/espn_events_today.pdfIn PDF document text
    • https://cdn.sqhk.co/lewiwifo/atzS7AG/city_sniper_shooter_free_shooting_games_download.pdfIn PDF document text
    • http://revilokepudidu.mygamesonline.org/vovanaselusi.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/pafiganovavi/52268943254.pdfIn PDF document text
    • http://jezepanan.rf.gd/40981616963.pdfIn PDF document text
    • http://tavamikilav.myartsonline.com/22192046164.pdfIn PDF document text
    • http://faperolakaf.rf.gd/descargar_libro_cazadores_de_microbios.pdfIn PDF document text
    • https://s3.amazonaws.com/datarofapakil/curiositystream_hack_apk.pdfIn PDF document text
    • http://wozurowimure.epizy.com/77085738467.pdfIn PDF document text
    • https://s3.amazonaws.com/jikopot/balsam_fir_leaf_information.pdfIn PDF document text
    • http://zufisad.rf.gd/50026968668.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_off0000d76c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD76C 5544 bytes
SHA-256: c9b9be79fadfc0d6613f0254a7207da27b5497f4a0b2fdbd5c76f52df243a44e
font_01_sfnt_off0000ea31.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEA31 9896 bytes
SHA-256: f06cec9e664f9217c891d977a3481d29e4833141dd4cbda9488dea07a82bd981

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