Malicious PDF — malware analysis report

Static analysis result for SHA-256 c0b108c02f33dfdf…

MALICIOUS

PDF

65.2 KB Created: 2021-02-16 00:18:23 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 0235272b69e13f9330e2c87939042518 SHA-1: 1dd5fc22a4a8b4f62b54006aea2f0e171541b8af SHA-256: c0b108c02f33dfdf541b202aa084b83a3e8dfea331de96d6e329f49fd73a4b75
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

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://baarspo.ru/wix?keyword=cyclone+lyrics+sticky+fingers PDF link annotation
    • http://reduslim-sito.site/majozumefudilewigu5bj1z.pdfIn PDF document text
    • http://covid-19online.site/burning_spear_all_songsplua0.pdfIn PDF document text
    • http://onsideball.info/gimme_more_spelling_quiz_answersyumia.pdfIn PDF document text
    • https://cdn.sqhk.co/mudemodox/idJiigi/gakigebekuxugufi.pdfIn PDF document text
    • http://sellamorem.com/xugobelepilasapixesafizi436.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4501486/normal_5fe956459b7c5.pdfIn PDF document text
    • https://cdn.sqhk.co/metexemoraga/iyjfgee/crunchyroll_manga_app_not_working_2020.pdfIn PDF document text
    • http://winoorama.website/29917683033b926n.pdfIn PDF document text
    • https://cdn.sqhk.co/namulofilox/Zhajggi/skiff_boats_for_sale.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.opentle.orgIn PDF document text
    • http://lifimakapusijok.rf.gd/lakorowag.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
    • http://www.gnu.org/licenses/gpl.htmlIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000b513.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB513 4908 bytes
SHA-256: 37740c882d3ab42537d5a66bdcc716e71e0c599497cd6fa4838ee1c931c82d06
font_01_sfnt_off0000c5df.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC5DF 6116 bytes
SHA-256: 05efb490dba5ae557a87815018ff984e4faf06e4d81040f3755a7065f9958f92
font_02_sfnt_off0000d59e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD59E 10040 bytes
SHA-256: 5a31b9dc8be5f35a9498d73c7451c4da3abe061b65be03c902be7f2f0a653d76