Malicious PDF — malware analysis report

Static analysis result for SHA-256 05920259f52281aa…

MALICIOUS

PDF

69.4 KB Created: 2021-02-02 15:45:02 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-01
MD5: 7003d555f4426142df446054a29d65dd SHA-1: 9aa07cf7ea5a7f3cf5808c9d3fdc075c45e8a8e2 SHA-256: 05920259f52281aa6679dcf80be2637df3e9472037fa7d97c504095cb0b2fc78
184 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
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • 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://yafferge.ru/shook?utm_term=the+palm+by+whispering+angel+rose+review In PDF document text
    • http://simcars.ru/punishment_vs_rehabilitation_pros_and_consrg6vp.pdfIn PDF document text
    • https://cdn.sqhk.co/miwiwefe/iwZhejf/rozuzezake.pdfIn PDF document text
    • http://axacheat4.xyz/reaction_of_kobe_bryant_wifeenfmx.pdfIn PDF document text
    • https://cdn.sqhk.co/gebemiwisero/Ciczxmo/afterpulse_elite_army_system_requirements.pdfIn PDF document text
    • https://gawakugoful.weebly.com/uploads/1/3/4/7/134757428/6dcdb114.pdfIn PDF document text
    • http://pepipejevu.iblogger.org/1415712718.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4421038/normal_5fd7c52fcb527.pdfIn PDF document text
    • http://zikifogomi.22web.org/arya_malayalam_movie_tamilrockers.pdfIn PDF document text
    • https://cdn.sqhk.co/rukugewul/djcudjg/dezaxalupokoredipumaxiz.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4444356/normal_5fdd920571d5b.pdfIn PDF document text
    • https://gijagexerifaru.weebly.com/uploads/1/3/5/3/135322880/552f196fc00d234.pdfIn PDF document text
    • http://bobixuposu.22web.org/geographical_information_systems_officer_pay_rate.pdfIn PDF document text
    • https://selokifasafu.weebly.com/uploads/1/3/4/3/134383977/jepikizujipibamet.pdfIn PDF document text
    • https://pijawofixogut.weebly.com/uploads/1/3/4/0/134017865/zinezanov.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://vupikefugogulup.epizy.com/easera_systune_full.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_off0000ccde.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCCDE 5576 bytes
SHA-256: e2a5437961c20fa65eb1324020e0eb1a5afff33fc3013d494d1acf53758513e5
font_01_sfnt_off0000dfbf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDFBF 11976 bytes
SHA-256: 23d815d6013dd0f343c31e2ca4203ff9929415576fab9720c6646ee574dc022e