Malicious PDF — malware analysis report

Static analysis result for SHA-256 95e94ecf4ed6fb02…

MALICIOUS

PDF

72.9 KB Created: 2021-03-04 11:51:15 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: a2c6acbe386925aa2831837c7d63f704 SHA-1: 22be46f2a45b05b0b06e190d12636e3d614f8766 SHA-256: 95e94ecf4ed6fb02be2405e6b489edd54c471d7c8228bc8546403a93830083a6
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
  • Browser extension / update installation lure high SE_BROWSER_INSTALL_LURE
    Document tells the user to install a browser extension, plugin, viewer, or browser update to view content — a common social-engineering path for credential theft and malware installation
  • 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://jacksth.ru/award?keyword=bounty+hunter+tracker+4+waterproof PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4453335/normal_60305f19b8ea3.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4387931/normal_5fc967fc8e42a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4382189/normal_60112c913b264.pdfIn PDF document text
    • http://odemebayisitrafik.com/bizemisebotaveze5c9o1.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4422161/normal_600a1426b108e.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4495034/normal_5ffa587c5d879.pdfIn PDF document text
    • http://alteramaks.world/tasugelawujotmtek6.pdfIn PDF document text
    • http://sale20.site/reproduction_in_pteridophytesg9y45.pdfIn PDF document text
    • http://boxberry-24.cc/jajikasafepudeg6sf44.pdfIn PDF document text
    • http://microbladingcertificationdfw.org/76830320275mqxtd.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4462974/normal_600b1de76b200.pdfIn PDF document text
    • https://cdn.sqhk.co/golemejexeno/0HicP2i/terminal_block_3d_model.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4444114/normal_5fe0ee974695f.pdfIn PDF document text
    • https://cdn.sqhk.co/voxobidivel/g4FUX6j/unicorn_bike_price_in_mumbai.pdfIn PDF document text
    • http://bostpolamos.site/valizawofelovebifajujalud2woyy.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/nojemi/contextos_leccion_3_crucigrama_answers.pdfIn PDF document text
    • https://s3.amazonaws.com/zagapaxa/98008079082.pdfIn PDF document text
    • https://s3.amazonaws.com/zifozujiwi/50374023384.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_off0000dd61.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDD61 5288 bytes
SHA-256: 9b8360ce1d1d7b995cf0340add5933b4633516b8bd70eafae713be1191aecea6
font_01_sfnt_off0000ef7c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEF7C 11336 bytes
SHA-256: 16cdc0ed548e3cc531da278bf0c35a60728c68f0affbf39132ae690512c00e17