Malicious PDF — malware analysis report

Static analysis result for SHA-256 09ea89f2414b4537…

MALICIOUS

PDF

71.7 KB Created: 2021-02-15 08:11:01 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 6ac37713a19bc7566565c6f0866049fa SHA-1: 8b962ebf8a7b8d5eabf355d3cc0f8d42c3be5bdc SHA-256: 09ea89f2414b4537d29b20cbd35858ad5333a30470357fbf73171ea4b1b6e533
184 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • 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://crophysi.ru/wix?keyword=kickin+it+season+3+episode+11+cast In PDF document text
    • http://varuzajuv.22web.org/libukabojozasonigezevovag.pdfIn PDF document text
    • https://foluxafan.weebly.com/uploads/1/3/5/3/135397430/7250981.pdfIn PDF document text
    • http://stepka2016.xyz/332122784846qdij.pdfIn PDF document text
    • http://numusuri.22web.org/just_already_yet_multiple_choice_exercises.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4420927/normal_602640a0b3edf.pdfIn PDF document text
    • http://kavanepamor.iblogger.org/small_business_budget_template_google_sheets.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/widofafane/makitupixodozemefefexuse.pdfIn PDF document text
    • http://lujolugajejizog.epizy.com/makalah_alkalosis_respiratorik.pdfIn PDF document text
    • http://poxemibusap.epizy.com/rodudaz.pdfIn PDF document text
    • http://mimojududike.epizy.com/pumigugavagamox.pdfIn PDF document text
    • http://gamojeliziri.rf.gd/73664356995.pdfIn PDF document text
    • https://s3.amazonaws.com/vavabi/pawinaxiduruzuraja.pdfIn PDF document text
    • https://s3.amazonaws.com/wupiwupiwot/nakopujolovazuruwis.pdfIn PDF document text
    • http://lenixad.epizy.com/sirigimasigupo.pdfIn PDF document text
    • http://woxutonugosafer.epizy.com/bullett_raja_movie_300mb.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_off0000dd03.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDD03 5188 bytes
SHA-256: 691ecdfac2aae140293b419646ca63bdd9191134f32899540dc5c5b370356e50
font_01_sfnt_off0000eec9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEEC9 10328 bytes
SHA-256: 76c0cd64e4c6712213ac18f5fa8913044f7ba2b4c5edd45c342677cb42576855