Malicious PDF — malware analysis report

Static analysis result for SHA-256 70b93dd404c45e04…

MALICIOUS

PDF

73.6 KB Created: 2021-02-25 16:49:26 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: fb7f7b7a4e18e32e00728c8e216e32ca SHA-1: 5567dd5953fd75d3b0d654b0c1b696375be84b69 SHA-256: 70b93dd404c45e040a299cd4456d97a7afb30302a9f9b95581734fc6dfc45664
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/award?keyword=how+to+make+stolen+airpods+yours In PDF document text
    • http://nuloriwilorij.scienceontheweb.net/97105954180.pdfIn PDF document text
    • http://nigavereke.mygamesonline.org/gejumulowag.pdfIn PDF document text
    • http://tonedomopoja.scienceontheweb.net/jetotiwozowowewe.pdfIn PDF document text
    • http://bixaxivajujojar.mypressonline.com/23490538055.pdfIn PDF document text
    • http://xufededubumavif.scienceontheweb.net/how_much_does_a_health_and_safety_officer_earn_per_month.pdfIn PDF document text
    • http://zatizoxitosake.22web.org/rapezodogabuzeme.pdfIn PDF document text
    • https://kobizixudowizeb.weebly.com/uploads/1/3/4/4/134402546/fekilid.pdfIn PDF document text
    • http://jiwapadenejeza.getenjoyment.net/ley_reguladora_de_la_propiedad_en_condominios_costa_rica.pdfIn PDF document text
    • http://hotel-engels.ru/garrett_hardin_tragedy_ofthe_commonsqkk9h.pdfIn PDF document text
    • http://lamakexo.scienceontheweb.net/construction_project_management_jobs_nyc.pdfIn PDF document text
    • http://parrrtner.xyz/a_view_from_the_bridge_full_textf3q4h.pdfIn PDF document text
    • http://vazawujuzu.sportsontheweb.net/taylor_food_scale_calibration.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://jasunusemoki.onlinewebshop.net/after_we_collided_full_movie_english_youtube.pdfIn PDF document text
    • http://wejufutaz.onlinewebshop.net/how_often_do_shareholders_receive_dividends.pdfIn PDF document text
    • http://zikoliduxa.atwebpages.com/71456602310.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_off0000e350.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE350 5324 bytes
SHA-256: fabf1e83d33038a06ebd8af1b718c1d39c02aba189131d144338b56f43f52837
font_01_sfnt_off0000f566.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF566 10660 bytes
SHA-256: 39138277a4e64c472fee9db324c5c3478f527e43b338730c88d941d0415f3942