Malicious PDF — malware analysis report

Static analysis result for SHA-256 cc7870955af20e39…

MALICIOUS

PDF

72.9 KB Created: 2021-03-03 16:57:18 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 8e31a2de2aa1b65f07e57709028490b8 SHA-1: ac96fa2e820f1ce76d7faae33de4af8976fce4ec SHA-256: cc7870955af20e39b060193fe9f82cfc6c3abb98075a98b00c1fdcca7f500bee
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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
  • Recovery secret / private key request critical SE_SECRET_RECOVERY_LURE
    Document requests recovery phrases, private keys, backup codes, or saved passwords. Requests for these secrets in a document are high-risk.
  • 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/award?keyword=vista+20p+report+codes PDF link annotation
    • http://ledozikatiresev.scienceontheweb.net/hundreds_chart_to_120.pdfIn PDF document text
    • http://ru-payment.casa/urolithiasis_review3jiuj.pdfIn PDF document text
    • http://triple-doska4.club/memigambpic.pdfIn PDF document text
    • https://nawobelif.weebly.com/uploads/1/3/5/3/135307193/4298549.pdfIn PDF document text
    • http://jorowijedo.mywebcommunity.org/25597781974.pdfIn PDF document text
    • http://borejukeluteva.mygamesonline.org/fozodatexuva.pdfIn PDF document text
    • http://lipexifinidoda.scienceontheweb.net/32686007882.pdfIn PDF document text
    • http://rigoditibalun.mywebcommunity.org/tuvekaditamamo.pdfIn PDF document text
    • https://cdn.sqhk.co/bidekidarub/jgegnjf/95073902908.pdfIn PDF document text
    • https://gujukajiw.weebly.com/uploads/1/3/1/4/131437807/3076477.pdfIn PDF document text
    • https://xiwevejuvufevi.weebly.com/uploads/1/3/1/3/131380641/fb0df4cfd.pdfIn PDF document text
    • http://dektesheff.xyz/vuwanalonojonuxotokerimazo9dw.pdfIn PDF document text
    • http://jiwapadenejeza.getenjoyment.net/how_to_turn_off_hunter_x_core_sprinkler_system.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://xobibaga.myartsonline.com/91634669766.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_off0000e26d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE26D 5276 bytes
SHA-256: 7eb8a6a83c7333d50a7d2d61c9de9dc5ff1edac8fc2996aa45c2e4f7ff288cd9
font_01_sfnt_off0000f46c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF46C 10172 bytes
SHA-256: 8a520d30d6fc96e8b412535e718597b880561e2a020ce90098e876570a32aa2e