Malicious PDF — malware analysis report

Static analysis result for SHA-256 5c89aae68670a7fc…

MALICIOUS

PDF

72.6 KB Created: 2021-02-18 09:42:29 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: e3dfe70251c1b8ad3c4d0716fe59ccd6 SHA-1: ca2e13a8d31cb14bdaea7528901b1bdfad089bde SHA-256: 5c89aae68670a7fcfd2818b1768bc90b81dc32bcc8af46a41e6c1dbf676be1f3
186 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 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://druttle.ru/wb?keyword=integral%20of%20x%5E2+cos%5E2x/1+x%5E2 PDF link annotation
    • https://cdn.sqhk.co/dedejosewor/chdyWtH/sopevuzudinet.pdfIn PDF document text
    • http://help-igcopyright.xyz/checklist_clipart_black_and_white_catcgosl.pdfIn PDF document text
    • https://cdn.sqhk.co/juzurupivepo/gujbfNR/sleep_number_weighted_blanket_vs_gravity_blanket.pdfIn PDF document text
    • http://1offpark.xyz/anemia_in_pregnancy_ppt_free4fmnc.pdfIn PDF document text
    • http://gallery-shop.site/87400820608um1kz.pdfIn PDF document text
    • https://cdn.sqhk.co/dabozijide/hhifSgf/motorcycle_racing_bike_parts.pdfIn PDF document text
    • https://pabedowilopore.weebly.com/uploads/1/3/1/1/131163579/3a01bc9a.pdfIn PDF document text
    • http://businesslinecenter.com/examples_of_adverbial_phrase_sentences0o0ql.pdfIn PDF document text
    • http://visionnew.xyz/kilunelitetux37cys.pdfIn PDF document text
    • https://maradezeg.weebly.com/uploads/1/3/5/9/135974492/61da147e6334f6.pdfIn PDF document text
    • https://cdn.sqhk.co/rutunidosaw/bFjalof/wezujesidinerudulowebowu.pdfIn PDF document text
    • https://mabedokuk.weebly.com/uploads/1/3/4/5/134582143/repefigod_lozewivupifimet_zopupadeluv.pdfIn PDF document text
    • https://cdn.sqhk.co/remimidotomi/gYifTia/navenobozolujevikugipal.pdfIn PDF document text
    • https://cdn.sqhk.co/seponidozit/tiaYidi/mamizibisetozon.pdfIn PDF document text
    • https://cdn.sqhk.co/muwazubivotu/aibjjgi/88710293953.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/wifiduxezo/android_9_s7_edge_custom_rom.pdfIn PDF document text
    • https://s3.amazonaws.com/bejikefowu/newton_s_laws_worksheet_grade_11.pdfIn PDF document text
    • https://s3.amazonaws.com/bokelur/xozexirag.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000c5cb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC5CB 5324 bytes
SHA-256: 686a546958cfb620b1e1bb35eae726b28070859740676cb8d4947a22cd67835d
font_01_sfnt_off0000d81b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD81B 11756 bytes
SHA-256: e9c25085811ef7345c4f9acee45a04e500697c83936764e7f083281cc2a4eae5
font_02_sfnt_off0001004d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1004D 16080 bytes
SHA-256: aba6d7228e0fcc42341ee09250d9598a413f48202077e5963e65f524ed209447

Open this report in the interactive analyzer, or submit your own file for analysis.