Malicious PDF — malware analysis report

Static analysis result for SHA-256 5d0051110f60788b…

MALICIOUS

PDF

88.6 KB Created: 2021-02-13 05:08:54 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 334fa7ac6dba79a7e4292ab9046355a8 SHA-1: bcd6f75f4d4d1c51f24ed5467b9358fa1c27c1bb SHA-256: 5d0051110f60788bf2b01b79720c60a68b1ebf82f20a618cd278333878d2b9b0
192 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 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.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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/123?utm_term=banner+of+commander+gw2 In PDF document text
    • https://cdn-cms.f-static.net/uploads/4393349/normal_601b062109eca.pdfIn PDF document text
    • http://fitness1.space/rdx_bollywood_hd_movie_2018auvi3.pdfIn PDF document text
    • http://sakhavto.ru/java_jre_version_7_update_458v2yw.pdfIn PDF document text
    • http://vsedlyatebya.xyz/business_application_letter_sample3cklm.pdfIn PDF document text
    • https://cdn.sqhk.co/rureroso/gigheA5/bibodoremiseregabo.pdfIn PDF document text
    • http://naturapple.space/alivio_en_ingles_wordreferencem61yr.pdfIn PDF document text
    • https://cdn.sqhk.co/bidelefo/EahbYd4/condado_tacos_menu_prices.pdfIn PDF document text
    • http://mbfsopg.com/zekusosuxugemarimopefatdzoj7.pdfIn PDF document text
    • https://cdn.sqhk.co/nonuripot/Z4TG403/12357487238.pdfIn PDF document text
    • http://gratoraama.website/neil_labute_female_monologues40eiv.pdfIn PDF document text
    • http://naturagrush.space/genodemuximiluwomizqa5n.pdfIn PDF document text
    • http://fullpisetc.ru/7440678202vmk7a.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4426682/normal_5fce9eb32d7e7.pdfIn PDF document text
    • http://espacecmb.xyz/jelipexivunuzudi4j5v8.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://poziluxolebulu.epizy.com/psc_chemistry_questions.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_off00011df4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11DF4 5404 bytes
SHA-256: e2980090ea0a02ac1df92722410b3d323eb14cd10f758af98123edd0def0a243
font_01_sfnt_off00013058.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13058 11004 bytes
SHA-256: bac4ebbab4b5c3c36e5d3b385c8bbb7f3e2b3462a07ba240218a1d6b8c2890d2