Malicious PDF — malware analysis report

Static analysis result for SHA-256 20cd4faacf0cab1a…

MALICIOUS

PDF

70.0 KB Created: 2021-02-19 02:21:39 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: 490c3afcfcaff37e59ff43cd21f0f5cc SHA-1: ad3cd63cab97b76ae13aa86bd026cc83f1616389 SHA-256: 20cd4faacf0cab1a317d05752465d45b7b6fcb65aa7f1933eec61b132a313a11
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=christian+athletic+league+riverside PDF link annotation
    • http://bella24.xyz/first_course_abstract_algebra_7th_editions1iod.pdfIn PDF document text
    • https://cdn.sqhk.co/xidatelo/d2gdia0/3740791791.pdfIn PDF document text
    • http://veronaital.space/zaveduwiragukuvegu93ynq.pdfIn PDF document text
    • http://damvglaz1.xyz/android_view_model_vs_viewmodel80fu5.pdfIn PDF document text
    • http://italiahot.fun/781506992sots1.pdfIn PDF document text
    • http://jadebey-x.com/lujipuvazisukizopitunalelci3y.pdfIn PDF document text
    • https://tajuweselu.weebly.com/uploads/1/3/4/3/134362517/8893407.pdfIn PDF document text
    • https://wajovojov.weebly.com/uploads/1/3/4/6/134652085/b00b3fe6d7.pdfIn PDF document text
    • http://idealica-official-it.website/ball_mayhem_online_games7vt3.pdfIn PDF document text
    • http://rafale.store/79038494248j80tr.pdfIn PDF document text
    • https://tewosafaxuw.weebly.com/uploads/1/3/1/3/131379700/nixideside.pdfIn PDF document text
    • http://tehnotop.store/mobowogezewoborariw8x38a.pdfIn PDF document text
    • http://boxberry-24.cc/digimon_episodes_in_hindi_online6e59z.pdfIn PDF document text
    • https://bulugigedi.weebly.com/uploads/1/3/4/7/134714886/946a066.pdfIn PDF document text
    • http://getsalle.xyz/kewimozixopijazunakqju25.pdfIn PDF document text
    • https://fuzitadixasixo.weebly.com/uploads/1/3/1/3/131381677/jetabiwekifiw-rorinisem-weratopinap-jagasunox.pdfIn PDF document text
    • http://leftoutclub.com/how_to_find_the_mean_median_and_mode_in_a_frequency_distribution_tablenkeyh.pdfIn PDF document text
    • http://xitnet.fun/self_motivation_quotes97n1k.pdfIn PDF document text
    • https://cdn.sqhk.co/bapisolel/gghavxj/xafitaf.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn 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_off0000d601.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD601 5168 bytes
SHA-256: cc5300923149a463171df1d7f7b010d83239eaad0a3db8050a0c30725c1f81ce
font_01_sfnt_off0000e788.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE788 10308 bytes
SHA-256: 69ef5c715418246a2ac0dc7e1d68eaccf73d8780edc36a82cfbea5156275d913