Malicious PDF — malware analysis report

Static analysis result for SHA-256 b0e23af76b17f702…

MALICIOUS

PDF

72.6 KB Created: 2021-02-12 05:15:55 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 54613478d23df7565e6d9689944a7b2b SHA-1: 703308fdeb62cf61a10c82dd5a802ea9eb092255 SHA-256: b0e23af76b17f702dad18d81c43f26a27e0032c0c57994c069416343e792c1d1
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/wix?keyword=the+american+pageant+13th+edition+pdf In PDF document text
    • http://discout.online/momento_de_inercia_circulolx510.pdfIn PDF document text
    • http://good-production17.site/barbie_and_the_swan_lake_full_movie_watch_onlines3gha.pdfIn PDF document text
    • http://metryck.info/alimentos_con_hierro7wn4j.pdfIn PDF document text
    • http://idealica-italiaufficiale.site/xasideferifawowok7pkh.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4483345/normal_60172ded0d7d1.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4448992/normal_5fefc128b389e.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4420589/normal_6007d1641f47e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4501961/normal_6025aa4902c1f.pdfIn PDF document text
    • http://samyog.ru/fetal_echo_ultrasound_reportvskeg.pdfIn PDF document text
    • http://mon-cmbretagne.com/army_vs_zombie_1._0._4_mod_apkgwecc.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4496826/normal_5fe26fd9396f1.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4374537/normal_60237919e8926.pdfIn PDF document text
    • http://winoorama.space/5832364755poksn.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/zifilobesumafi/google_camera_android_version.pdfIn PDF document text
    • http://virixavop.epizy.com/top_chinese_songs_2018.pdfIn PDF document text
    • http://bemurulorax.rf.gd/19075688165.pdfIn PDF document text
    • https://s3.amazonaws.com/zinudipir/flight_1942_full_movie.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_off0000deae.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDEAE 5524 bytes
SHA-256: 779780ef082e53cfe074ec812cddcff0f334905a2032ead7f57b66f3dd9a962f
font_01_sfnt_off0000f155.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF155 10476 bytes
SHA-256: 10c50834255ee171c2494f9680a2fb6dfccab2f98aae87bdcd8e394ec6a860c0