Malicious PDF — malware analysis report

Static analysis result for SHA-256 5d416db1a6fb4b4b…

MALICIOUS

PDF

64.8 KB Created: 2021-02-19 02:10:55 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: ffb821775c20ceb533c7ceef05ca403a SHA-1: 294ae3b11019af7949bdb587e8972a9273fe3e7b SHA-256: 5d416db1a6fb4b4b3026947aa555ffad07593cdac70c2fbc0ed7d1a2d4c8115d
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • 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 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/wix?keyword=the+scarlet+letter+objective+test+answers PDF link annotation
    • http://goodnatural.space/advanced_reading_worksheetseehfi.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4379744/normal_5fc65abadadcf.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4366020/normal_5fc811092665e.pdfIn PDF document text
    • http://bilkaita.space/kftc_voter_guidegj9wx.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4420902/normal_5fd29300895c1.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4450145/normal_600fecfc589c5.pdfIn PDF document text
    • http://sidesevofexow.22web.org/new_amsterdam_season_3_episode_guide.pdfIn PDF document text
    • http://fusojosejivo.iblogger.org/bissell_cleanview_vacuum_cleaner_with_onepass_technology.pdfIn PDF document text
    • http://rafidoletusamox.22web.org/nubirosupejopijafo.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://sinubazafapeni.rf.gd/hillsborough_disaster_lord_justice_taylor_report.pdfIn PDF document text
    • http://damexodawu.epizy.com/14204517045.pdfIn PDF document text
    • http://vajexakatozezal.epizy.com/28806387592.pdfIn PDF document text
    • http://xasezujagabef.epizy.com/lularoe_jeans_fit_guide.pdfIn PDF document text
    • http://jeronegiwok.rf.gd/dog_faced_water_snake_care_sheet.pdfIn PDF document text
    • http://rajemezipuz.rf.gd/dosebopefupeja.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_off0000c416.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC416 5204 bytes
SHA-256: 83068a48a4261444e5dc22906136bdf4caa9f149fbc78b1f310cb87f47a6daa2
font_01_sfnt_off0000d5d5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD5D5 9480 bytes
SHA-256: 87fc8f0e2b39a3c655f58618c0c96c163177208bbbb69adb0a096a72a355f1ad