Malicious PDF — malware analysis report

Static analysis result for SHA-256 0142cf24d7e2ba11…

MALICIOUS

PDF

72.6 KB Created: 2021-04-03 01:04:42 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-19
MD5: ed5f4cecc8920690e0ce0e77ac9775e2 SHA-1: cc6acd9beec33bd16b91a87b69ca3fe4c0561bad SHA-256: 0142cf24d7e2ba111ac9e447a7335b297f04cc2f652faee8581572a2fc3300a4
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://cdn-cms.f-static.net/uploads/4456685/normal_602b2243c88aa.pdf In PDF document text
    • http://devlp.design/nifasenualnyw.pdfIn PDF document text
    • https://cdn.sqhk.co/leburogutu/hhWXrgm/games_like_emperor_and_beauties.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4423471/normal_600ee79d4ee32.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4445737/normal_600ca2a1102e0.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4497695/normal_5fe127b788e7d.pdfIn PDF document text
    • http://instapriz365.online/zulojeginiwurijuepj0.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4480402/normal_5ffcb6428451a.pdfIn PDF document text
    • http://kukogekaw.sportsontheweb.net/adding_subtracting_multiplying_and_dividing_polynomials_worksheet.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4416653/normal_5fca44e71f1e1.pdfIn PDF document text
    • https://cdn.sqhk.co/toviranevu/icVjfY9/gigabit_off_road_mod_apk_android_1.pdfIn PDF document text
    • https://cdn.sqhk.co/lunapolakezo/hfehfrd/xibijisemusegogefi.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://feedproxy.google.com/~r/wb/ENAH/~3/G1IkLG9TFNM/wb?keyword=what%20is%20unanimous%20written%20consentPDF link annotation
    • https://1fc3e790-19e1-43b7-bae7-d09a953f51fe.filesusr.com/ugd/2c608b_e4f152b7ab6c4b41b0ba68e86f55eba7.pdf?index=trueIn PDF document text
    • http://jawuwibunoropo.atwebpages.com/7128773143.pdfIn PDF document text
    • https://661c91a2-68a2-4ae3-aaac-ef96b6cc7894.filesusr.com/ugd/b926a8_8c7168bb127b4baca67c1e4ce11c3a21.pdf?index=trueIn PDF document text
    • https://cf587a47-7c2f-4f55-8bbb-21a4c73503f7.filesusr.com/ugd/8ea597_1580fc7e166d41458e78d13e3574120e.pdf?index=trueIn PDF document text
    • https://be08d7d4-326a-4801-be9d-4496af17a43b.filesusr.com/ugd/d31907_9781145a72f046d2817d73230252a75a.pdf?index=trueIn PDF document text
    • https://d4078116-a2d5-466f-97e6-20d899f6ca30.filesusr.com/ugd/576447_71a2ebaf097c4780bfaf4eaeb30177c9.pdf?index=trueIn 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

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e130.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE130 5112 bytes
SHA-256: 0d4ab436516e43f111e434b351c57af194d27389f9966760def5b54c755e16d9
font_01_sfnt_off0000f27b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF27B 10256 bytes
SHA-256: ff8ca14943935261402a220114ef8dabf95e354fe4f12da78b02c27e1e53f7a5

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