Malicious PDF — malware analysis report

Static analysis result for SHA-256 2777253e1b2a703a…

MALICIOUS

PDF

70.5 KB Created: 2021-02-26 14:14:10 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: e45f2b9dd4bf2069bee01a0ebf283545 SHA-1: 5c9587cd1285efd42ee81ae5caea40b72ceadbff SHA-256: 2777253e1b2a703a32faf8d9a0cff0e861126a36c39e142067ff7e8a591ceca0
134 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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.
  • 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
  • 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://maypoin.ru/award?keyword=boards+and+beyond+promo+code+jan+2020 PDF link annotation
    • http://genijiloxaxu.iblogger.org/business_strategy_books_free.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4458407/normal_5fe31345cdfd1.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4407316/normal_5ffb7d9c01df7.pdfIn PDF document text
    • http://outputqwvk.space/rixutetetazoxo97sk8.pdfIn PDF document text
    • https://cdn.sqhk.co/zolilobup/eTjfnih/ufc_254_khabib_vs_gaethje_full_fight.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4461245/normal_5fd91835484fe.pdfIn PDF document text
    • http://bofinaposo.iblogger.org/vifefepanosejamerutemiviz.pdfIn PDF document text
    • https://cdn.sqhk.co/bebomopakax/jetBDih/mudevujawen.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4459776/normal_5fdbeaa410f97.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4478685/normal_5fd661d438d1c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4391047/normal_60108e654f5f7.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4528780/normal_601afa41c62e9.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://wepilujal.rf.gd/chopper_one_piece_different_forms.pdfIn PDF document text
    • http://vabibago.rf.gd/champion_9000_watt_dual_fuel_generator_manual.pdfIn PDF document text
    • http://wejonixegovut.rf.gd/4988208679.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_off0000d580.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD580 5828 bytes
SHA-256: 9d984d96084a8b1cc062d4d0d381d53986725a2d20dc4e4afa1947f6a79bdec0
font_01_sfnt_off0000e94d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE94D 10488 bytes
SHA-256: 3bf2a7c8796706f1b567727bf3ecec7e598551dde9184d4638a9f98763b34ec4