Malicious PDF — malware analysis report

Static analysis result for SHA-256 d5a7e81c33ca408e…

MALICIOUS

PDF

68.2 KB Created: 2021-02-21 17:11:48 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: 5e904cf91113b9c3f1aa447b8869bf8a SHA-1: 6e1599ee5862f96244872d7dd9e2c16585972078 SHA-256: d5a7e81c33ca408e18bfcfc2ae0e1acb75b015b6686c0cba35e8542be977f8cb
146 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

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 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.
  • QR-code redirect lure medium SE_QR_LURE
    Document instructs the user to scan a QR code with a phone — consistent with QR phishing, but also common in legitimate documents
  • 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://bologen.ru/wix?keyword=safety+1st+hd+wifi+baby+monitor+user+manual PDF link annotation
    • http://bluebadge-support.com/warhammer_40k_harlequins_codexlfvz5.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4457847/normal_5ff463237af34.pdfIn PDF document text
    • http://drilltech.info/bleacher_report_smackdown_previewa4c7c.pdfIn PDF document text
    • https://zepitobazelaki.weebly.com/uploads/1/3/4/6/134619491/tagaj-debulobilofez.pdfIn PDF document text
    • http://help-lnstagram-verifycopyrgiht.com/hipotesis_de_la_generacion_espontanea7hos0.pdfIn PDF document text
    • http://sweetmeet.online/small_oreo_blast_sonic_priceexrjw.pdfIn PDF document text
    • http://submonster.xyz/free_mp3_music_app_for_iphone_offlineilr1s.pdfIn PDF document text
    • http://meine-gebuhrenfrei.com/muzutthsx2.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4418368/normal_5fec24bab6a1c.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://podedubo.epizy.com/national_hydroelectric_power_corporation_limited_annual_report.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_off0000d057.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD057 5636 bytes
SHA-256: 66ee488dcf24a7ad191db8e3459a6698e53bf309c6a0804965a7b2563e151d85
font_01_sfnt_off0000e374.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE374 9504 bytes
SHA-256: 6e6e6e3a5d770bb7a57d4945707fe92284ff1e13043252ded978ca276c307b48