Malicious PDF — malware analysis report

Static analysis result for SHA-256 e42328d584eaf294…

MALICIOUS

PDF

69.2 KB Created: 2021-02-08 13:55:48 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: 7618e1215a33942d9e6373f34b2224d2 SHA-1: 824cdc2eadf0d1340dfe1a1fc411ab2c5c20f12e SHA-256: e42328d584eaf29426dfa3f1532890b87ac0e687a636ef7462ba330135fde422
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://jacksth.ru/wb?keyword=pdf%20tentang%20penyakit%20cacar%20air PDF link annotation
    • http://peuer.xyz/logo_quiz_answers_level_36455djo.pdfIn PDF document text
    • http://ita-bio.space/free_class_attendance_sheet_templatett79z.pdfIn PDF document text
    • http://rat-red.space/insurable_and_uninsurable_risks34tjh.pdfIn PDF document text
    • http://dezlice.ru/kinudepazetiv1am5i.pdfIn PDF document text
    • https://jenodavosu.weebly.com/uploads/1/3/0/7/130775827/kofapafu_vepixural_xitisusi.pdfIn PDF document text
    • https://fatitabo.weebly.com/uploads/1/3/4/7/134757356/fuvavodokuten_nabomoz_tumebovipupan.pdfIn PDF document text
    • http://tipografiyav.moscow/baron_typeface_free_downloadx5doh.pdfIn PDF document text
    • https://cdn.sqhk.co/gofelaxes/hgQhc3K/17472794905.pdfIn PDF document text
    • http://lumacy.site/43930679803i5ze9.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/gopuze/taratetobo.pdfIn PDF document text
    • https://s3.amazonaws.com/negonanopix/playerunknown_s_battlegrounds_key_free.pdfIn PDF document text
    • https://s3.amazonaws.com/suximawo/data_gap_analysis_template.pdfIn PDF document text
    • https://s3.amazonaws.com/dewutexorob/20898333945.pdfIn PDF document text
    • https://s3.amazonaws.com/fosagobomap/gujarat_university_marksheet_verification.pdfIn PDF document text
    • https://s3.amazonaws.com/kitakilesa/baby_boy_girl_photos.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_off0000d2b3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD2B3 5280 bytes
SHA-256: 5ee99637af7b18abe1be8a413d51684e7f2f5ba56baacea9d12934181958d10d
font_01_sfnt_off0000e4d1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE4D1 10208 bytes
SHA-256: 704b20c70dcadb7866c5fdac03aabfd1d8d1dd1c13454251a8c8f50e470e4750