Malicious PDF — malware analysis report

Static analysis result for SHA-256 1712a573c65f82a6…

MALICIOUS

PDF

77.5 KB Created: 2021-01-26 10:45:42 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: 9a791947f23e61e4be297583c1dad877 SHA-1: b3cb285b9534d12bf76ed382ea5abfc6b374e5e0 SHA-256: 1712a573c65f82a66190a38f0664bc4fa74c44ceede8677c162b916583d6a934
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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
  • Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE
    Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
  • 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://trafffe.ru/wb?keyword=best%20turkish%20ringtones%202020 PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4465398/normal_5fc771f618daf.pdfIn PDF document text
    • http://shopmzm.site/viruluxorx4rb.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4456121/normal_5ff89c386467d.pdfIn PDF document text
    • http://foodguideblog.com/ceramic_tile_craft_suppliescy8d1.pdfIn PDF document text
    • http://generalmassage.online/6896184236294lo9.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4384819/normal_600a805abe974.pdfIn PDF document text
    • http://storeyou.store/snowmobile_mobile_wallpapersesohh.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4408858/normal_5fe9315b16b15.pdfIn PDF document text
    • http://servempieza.site/ps4_vr_roller_coaster_simulator0tagi.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4412889/normal_5fcb42e93a013.pdfIn PDF document text
    • http://lnstagramverifycentre.com/zozabimogejo1kv.pdfIn PDF document text
    • http://tesar-krd.ru/dewuveramotesovukisxu6dh.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4446931/normal_5fdf77c64c523.pdfIn PDF document text
    • http://avto-trokot.xyz/wild_blood_apk_data_mod_offlinefzh3q.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://tumofif.rf.gd/7741133886.pdfIn PDF document text
    • https://s3.amazonaws.com/dufekifaral/depera.pdfIn PDF document text
    • https://s3.amazonaws.com/sizadagazagaj/67753920494.pdfIn PDF document text
    • https://s3.amazonaws.com/vudivuzakal/wesonepo.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_off0000f4ac.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF4AC 5092 bytes
SHA-256: 10c7c4f5bd02a2ce47db7ea1021c94f0927296189240dc64013ff707485223b8
font_01_sfnt_off00010606.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10606 10220 bytes
SHA-256: 6128bbe22ede60e2b74694bd213bbff16671a6a074027bd931e5238ab3934b6b