Malicious PDF — malware analysis report

Static analysis result for SHA-256 2d585f1be35ad934…

MALICIOUS

PDF

74.8 KB Created: 2021-02-10 23:33:19 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 6021a618b06ff830de51d5d80ab41bf1 SHA-1: a440bdef2473147cd5735d6788270a1f70ec755b SHA-256: 2d585f1be35ad934d4e29bac614b1298c63bf8d6aa1852e28c261657770aa23b
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://jacksth.ru/wb?keyword=du%20entrance%20exam%20admit%20card%202019 PDF link annotation
    • http://com-signto6.xyz/dipuramipodidajugikosredvd.pdfIn PDF document text
    • https://cdn.sqhk.co/tajudozizif/gh2nAjb/photo_video_song_editor_online_free_download.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4470985/normal_601dcc31efddb.pdfIn PDF document text
    • http://girlsbeach.space/milawefscl3v.pdfIn PDF document text
    • http://twenty-promo2020.ru/basulagetisisopativabarwzrc1.pdfIn PDF document text
    • http://sdorovie-sustavi.xyz/mofavudaradugobovilavepogd01l.pdfIn PDF document text
    • http://fakaripeti.xyz/rupepemepanajezowdm.pdfIn PDF document text
    • http://repair-kompov.ru/zinodawenekekuxigamadowum1y6c6.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4463830/normal_5fd67d8222c9c.pdfIn PDF document text
    • http://verifiedbadges-form.com/4437465987eo7r8.pdfIn PDF document text
    • https://cdn.sqhk.co/jokalirubore/gjchijc/dolusolapiwu.pdfIn PDF document text
    • http://specialsale.info/snappy_tomato_pizza_menu_alexandria_ky15q9s.pdfIn PDF document text
    • http://de-bewertung-889562.icu/841681290161sfii.pdfIn PDF document text
    • http://scotiaenlineape-personas.com/download_kitab_minhajul_abidinzszde.pdfIn PDF document text
    • http://price-list.moscow/loregivokawedulxij.pdfIn PDF document text
    • https://cdn.sqhk.co/xakelafu/tUgdige/zikube.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/divelikubapiwaj/adobe_flash_player_apk_for_android.pdfIn PDF document text
    • https://s3.amazonaws.com/kesumasaka/4824959738.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_off0000e5ff.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE5FF 5424 bytes
SHA-256: 1237c199a7ae1a00ff5ec134befbba77682d85d1cb8f7ea5d84b7169c5ca3bfe
font_01_sfnt_off0000f869.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF869 11160 bytes
SHA-256: 14e2f13c6f09372711c93a47877a67997049f1a403e57bf64fa2ca0a8d7bee3e