Malicious PDF — malware analysis report

Static analysis result for SHA-256 660eeb9814680d06…

MALICIOUS

PDF

69.3 KB Created: 2021-02-12 16:27:07 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: 8dffabc6cfe14c639f8711252882adc5 SHA-1: 8a53200be906c83ab8f5165dd15e288164f150c3 SHA-256: 660eeb9814680d0628c8ceaba9c2e3defe535bdb9719109d14e83fc6e83b5da9
186 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
  • 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://leonvi.ru/wb?keyword=antony%20gormley%20sculptures%20formby PDF link annotation
    • https://wibugosavuzatug.weebly.com/uploads/1/3/4/3/134349607/fusofatozenamovola.pdfIn PDF document text
    • https://kivalake.weebly.com/uploads/1/3/4/8/134885121/sawuregosedaji-xegorex-pudovomegowus-zawifer.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4480174/normal_5fe6fe2de5b64.pdfIn PDF document text
    • https://cdn.sqhk.co/gitopedevid/fIiacRV/58423368575.pdfIn PDF document text
    • https://givurili.weebly.com/uploads/1/3/4/6/134605008/nutinisedozi.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4484997/normal_5fef9e22de467.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4375351/normal_6006276fbf122.pdfIn PDF document text
    • https://golisarupu.weebly.com/uploads/1/3/5/3/135317681/6946074.pdfIn PDF document text
    • https://cdn.sqhk.co/xutujipux/fehbpyL/tojesaduxomajedivipafoxa.pdfIn PDF document text
    • https://jufukakoxojopop.weebly.com/uploads/1/3/4/3/134317893/xoxajo.pdfIn PDF document text
    • https://rinulokol.weebly.com/uploads/1/3/4/8/134868038/495664.pdfIn PDF document text
    • https://tajagarajoj.weebly.com/uploads/1/3/0/7/130776182/fagakegulit.pdfIn PDF document text
    • https://gikowotezura.weebly.com/uploads/1/3/4/4/134493608/61b51.pdfIn PDF document text
    • https://cdn.sqhk.co/fasisela/TiaOubu/falling_ball_game_y8.pdfIn PDF document text
    • https://fakazurirogedim.weebly.com/uploads/1/3/4/7/134743668/e1f9b1ea23de7e.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn 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_off0000d2b6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD2B6 5356 bytes
SHA-256: 034a7e7cb519b186c53226520ea8b5a22aafc2b3ecd9013d3970b131fabe64f8
font_01_sfnt_off0000e4ed.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE4ED 10372 bytes
SHA-256: cd7ce6e0912578afbc9890ac62dfb92306ef09a6dd9728cf13104b58c8d14308