Malicious PDF — malware analysis report

Static analysis result for SHA-256 054b8d5ed3094332…

MALICIOUS

PDF

75.9 KB Created: 2021-03-02 17:15:38 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-17
MD5: 833ec5da03872407d79caf8eecfdbaa5 SHA-1: 515f8b7175cfe444ddd52eac78fc939b1a95135d SHA-256: 054b8d5ed3094332edd3eaca2f4bd87d3a58c917a6e63e58d0ebcaa42bceb158
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://resalured.ru/wb?keyword=read%20180%20real%20book%20answers%20key PDF link annotation
    • http://update-win20.online/lunekobejemugejinys8l8.pdfIn PDF document text
    • http://kitafoged.medianewsonline.com/how_to_prepare_red_potatoes_for_planting.pdfIn PDF document text
    • http://mevukavotidu.getenjoyment.net/33315581525.pdfIn PDF document text
    • http://lami-lashes.site/jewels_legend_match_3_puzzle_apkwju1x.pdfIn PDF document text
    • https://sujumakatu.weebly.com/uploads/1/3/1/3/131379709/3953480.pdfIn PDF document text
    • http://sodalabs.club/what_to_do_at_lilycove_city_emeraldkf9uw.pdfIn PDF document text
    • http://just-gopro.com/66310218103fskbq.pdfIn PDF document text
    • https://kokujefep.weebly.com/uploads/1/3/1/4/131409677/xusile.pdfIn PDF document text
    • http://wejowadizabudex.mypressonline.com/how_to_work_out_number_of_hydrogen_atoms_in_a_compound.pdfIn PDF document text
    • https://cdn.sqhk.co/radojiga/aghjjoB/jaguar_car_ringtone_download.pdfIn PDF document text
    • http://daludaja.getenjoyment.net/36349383189.pdfIn PDF document text
    • https://barufaworu.weebly.com/uploads/1/3/5/9/135957986/3151739.pdfIn PDF document text
    • https://cdn.sqhk.co/tamupoto/ajhhbU4/vivalin.pdfIn PDF document text
    • https://mafaredoli.weebly.com/uploads/1/3/2/6/132695491/6575120.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/gofilafixu/60207352771.pdfIn PDF document text
    • http://zotubune.myartsonline.com/gulifetopagajutemun.pdfIn PDF document text
    • https://s3.amazonaws.com/jebokizez/certificato_di_conformit_laurea_medicina.pdfIn PDF document text
    • https://s3.amazonaws.com/dorulusof/peponetafivikisisu.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_off0000eb7a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEB7A 5612 bytes
SHA-256: ea28780cb803251b524b2e2a701c9b4d78b425fd89133db704dc6b06b7dffb8d
font_01_sfnt_off0000feb9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFEB9 10500 bytes
SHA-256: bd25a6b5bf8d85b8af25cb42441409ae8c6555630bf28876c4076f88be8842dc