Malicious PDF — malware analysis report

Static analysis result for SHA-256 36fd3a3750c24b01…

MALICIOUS

PDF

67.0 KB Created: 2021-02-13 17:41:27 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 98c07277d3b98675a78ef1c9e59f0fba SHA-1: 2cda20db3c842f6163a18a85b61c9797c0fddb22 SHA-256: 36fd3a3750c24b0168846872d734bc9313c02aab3422c01c714a576a4a1d0658
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://leonvi.ru/wix?keyword=eberron+city+maps PDF link annotation
    • https://mafetoga.weebly.com/uploads/1/3/0/8/130874134/rumiga-lalupif.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4481839/normal_5fcf514c0ede0.pdfIn PDF document text
    • http://kokilubowo.22web.org/79539455905.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4384144/normal_601dd347a1270.pdfIn PDF document text
    • https://xekuruwagimutuz.weebly.com/uploads/1/3/2/6/132696141/junivulafer.pdfIn PDF document text
    • https://zesadokalefon.weebly.com/uploads/1/3/2/6/132681767/677f210.pdfIn PDF document text
    • https://vomizovuzib.weebly.com/uploads/1/3/1/6/131637161/bfa01b3cfce7ca8.pdfIn PDF document text
    • http://jowitut.iblogger.org/xelaxutamizejazutem.pdfIn PDF document text
    • http://jezolixepoj.22web.org/79212621730.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://laraxeramamat.rf.gd/tutorial_sql.pdfIn PDF document text
    • https://s3.amazonaws.com/tufujifinobiro/gspread_clear_sheet.pdfIn PDF document text
    • https://s3.amazonaws.com/pukaridimupo/annamalai_tamil_movie_ringtones_free.pdfIn PDF document text
    • http://sukidagijonola.rf.gd/98965766663.pdfIn PDF document text
    • https://s3.amazonaws.com/wovugi/xagirigiguravu.pdfIn PDF document text
    • https://s3.amazonaws.com/mibiwivanetuj/todofobaratile.pdfIn PDF document text
    • http://puxetedategekex.epizy.com/kamunenu.pdfIn PDF document text
    • http://jarebavax.epizy.com/examples_of_spreadsheet_computer_software.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_off0000cb7a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCB7A 5248 bytes
SHA-256: 8feca2bdd8ad97c01b4aefca2e94fca6eb827975188c7bc9ea736cf6b8676c3c
font_01_sfnt_off0000dd42.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDD42 9972 bytes
SHA-256: 807940538d5f7fbce61847946efa1b1adb3643e50b09bc778dd4bf8bbcfa3dd1