Malicious PDF — malware analysis report

Static analysis result for SHA-256 37e64b1b70099957…

MALICIOUS

PDF

72.4 KB Created: 2021-03-03 18:44:21 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: ca752dd69c54231c98260bd8434ab411 SHA-1: f2e1fb554e99a105cdec876d2c9dcd1799962bbb SHA-256: 37e64b1b700999572545bd14043eb11728d3b76caeb2c6499277d48f1a471038
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://vilenefex.ru/wix?keyword=shadowfell+despair+5e PDF link annotation
    • https://vazoxavaver.weebly.com/uploads/1/3/4/8/134863882/rulinuwulexudora.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4426547/normal_5fdc2489ee638.pdfIn PDF document text
    • http://karnaval.host/480789648804fo8a.pdfIn PDF document text
    • https://cdn.sqhk.co/zuxosutuku/eCrjjgc/72849548014.pdfIn PDF document text
    • http://microdigitalmeter.xyz/60838934581i54pp.pdfIn PDF document text
    • https://cdn.sqhk.co/juxerawabuf/jiThc3w/riponixudunebizu.pdfIn PDF document text
    • https://cdn.sqhk.co/peluxisomex/gXHYicQ/thrifty_car_rental_airport_boulevard_los_angeles_ca.pdfIn PDF document text
    • https://xaviloxoganobe.weebly.com/uploads/1/3/1/3/131383750/b41ff449eb6.pdfIn PDF document text
    • https://koberowebajufom.weebly.com/uploads/1/3/4/0/134096943/74f8ff59.pdfIn PDF document text
    • http://wonder-ita.space/interpreting_graphs_physics_worksheet0883w.pdfIn PDF document text
    • https://mamudige.weebly.com/uploads/1/3/0/8/130874639/6780700.pdfIn PDF document text
    • https://cdn.sqhk.co/develezuwa/ja2w6SL/powerbass_12_subs.pdfIn PDF document text
    • http://vquest.website/kannada_baby_names_app2xmal.pdfIn PDF document text
    • https://cdn.sqhk.co/xenotami/igihzjg/chicken_poultry_farm_near_me.pdfIn PDF document text
    • https://cdn.sqhk.co/pipezifiwip/TxpQubj/alchemy_gothic_puzzles.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4422148/normal_6015cee23b51b.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_off0000ddd5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDDD5 5448 bytes
SHA-256: da8a67f465501b6fe1a109e41a044eeb899f9fb8e8a3874519d284b2440b0873
font_01_sfnt_off0000f06f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF06F 10740 bytes
SHA-256: 1c44c84228c671234a2f9574d2cc4c2c913d4866d4d3a2244a9c50abb3d10fe7