Malicious PDF — malware analysis report

Static analysis result for SHA-256 c0cd12a3ff3c2dfa…

MALICIOUS

PDF

69.9 KB Created: 2021-02-10 06:41:23 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: d2d2339664d4239000e51efae9999e28 SHA-1: 8264923759e355e21033c499b0e15c170f706f9f SHA-256: c0cd12a3ff3c2dfa474e0027cfda5fc9076dbc465240e6000a44391d8a2b4b5e
244 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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
  • 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 contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://yafferge.ru/wb?keyword=how%20to%20see%20sql%20format%20in%20notepad++ In PDF document text
    • https://cdn.sqhk.co/matijamaj/h0jbLmk/ultimate_fishing_simulator.pdfIn PDF document text
    • https://cdn.sqhk.co/tajudozizif/gj6hijd/slide_away_meaning_oasis.pdfIn PDF document text
    • https://dafufiwe.weebly.com/uploads/1/3/4/3/134368649/dudereforawamibopawu.pdfIn PDF document text
    • https://suzexefovewav.weebly.com/uploads/1/3/4/6/134640410/rimulesaxumimuv-gadusom.pdfIn PDF document text
    • https://cdn.sqhk.co/vuxeneson/6urDdhi/82750579777.pdfIn PDF document text
    • https://cdn.sqhk.co/jixuvepabu/p7hdiiq/banner_saga_2_which_characters_to_level.pdfIn PDF document text
    • https://cdn.sqhk.co/vujenibolo/4TieEhi/mr_love_queen_s_choice_anime_crunchyroll.pdfIn PDF document text
    • https://lulotabo.weebly.com/uploads/1/3/4/7/134745182/580dbe9.pdfIn PDF document text
    • https://cdn.sqhk.co/xetasenuwoji/dhehi1I/marketplace_insurance_texas_providers.pdfIn PDF document text
    • http://siwutasir.iblogger.org/82197653975.pdfIn PDF document text
    • https://renesixedobalew.weebly.com/uploads/1/3/0/9/130969137/4020416.pdfIn PDF document text
    • https://cdn.sqhk.co/bozutebux/a76CWhd/fizimedewavofexo.pdfIn PDF document text
    • https://cdn.sqhk.co/fobonelaga/ihiiiij/best_free_photo_collage_software_for_mac.pdfIn PDF document text
    • http://jafalule.22web.org/vitusukabimesexotazafudew.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/jimugivos/rewubimoba.pdfIn PDF document text
    • http://zuzeburim.epizy.com/accretionary_prism_formation.pdfIn PDF document text
    • https://s3.amazonaws.com/somamere/ip_calculator_windows_10.pdfIn PDF document text
    • http://zikimopotefeva.epizy.com/5478653722.pdfIn PDF document text
    • https://s3.amazonaws.com/nolarifaforuxop/matador_s_foe_crossword_answer.pdfIn PDF document text
    • https://s3.amazonaws.com/fujadabez/226659194.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_off0000d12b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD12B 5368 bytes
SHA-256: 68288734fd6f282e8aeee2a908c26a265f6803bc5e82df80cd3a59aa890c31f4
font_01_sfnt_off0000e360.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE360 11512 bytes
SHA-256: adfad2696a0e17dcbcc9a07dd3c6e4d1738ed3331883131eed29419fb7e2d89c

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