Malicious PDF — malware analysis report

Static analysis result for SHA-256 ba9413458dc0dbbe…

MALICIOUS

PDF

66.9 KB Created: 2021-02-13 04:54:07 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 5de4397ffe901dcf3283e410e5bf8f62 SHA-1: 6262e00b342e2c59db275f94d24ba21a6f1a9c77 SHA-256: ba9413458dc0dbbef7ab537b131130eb47b16182bba0ac6e620d4a048c2d1732
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://druttle.ru/wix?keyword=planet+fitness+erie+pennsylvania PDF link annotation
    • https://cdn.sqhk.co/nebemina/ibijbIs/19641950198.pdfIn PDF document text
    • http://taher-tcac.com/backtrack_4_r2_ison9m4t.pdfIn PDF document text
    • https://cdn.sqhk.co/xubulozirod/uhbl7hd/88831457735.pdfIn PDF document text
    • http://zdorovie-vashe-vse.xyz/myanmar_wikipedia_bahasa_melayur1qvr.pdfIn PDF document text
    • http://teachost.com/best_naval_battle_movieszcymj.pdfIn PDF document text
    • https://sitimewodojex.weebly.com/uploads/1/3/1/8/131856527/b9225109f.pdfIn PDF document text
    • https://lubozukutiximik.weebly.com/uploads/1/3/4/4/134472848/wimunorilevuginixagi.pdfIn PDF document text
    • http://rukozhop-guide.com/geometric_and_arithmetic_sequence_worksheetvd6w5.pdfIn PDF document text
    • http://dorightschool.com/combine_sentences_using_relative_pronouns_exercisesemc3u.pdfIn PDF document text
    • https://pezazexumazu.weebly.com/uploads/1/3/5/3/135392870/4273985.pdfIn PDF document text
    • http://wisitens.online/hd_long_free_pornoq77o.pdfIn PDF document text
    • https://cdn.sqhk.co/xavonepez/jiib2jf/tijuxewafefuk.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/zubuwujoxom/sumozigutiku.pdfIn PDF document text
    • https://s3.amazonaws.com/mejobu/92452105325.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_off0000c7c4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC7C4 5060 bytes
SHA-256: d25d3f719d226f017b8dc0971458f13681f6ca173dd27e3eb95dd1aa46e43c7b
font_01_sfnt_off0000d91d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD91D 11052 bytes
SHA-256: f53a0f89c8a5d06e1a5a781282afbae7fe5e4a54f7d7821d03b9ccb7bf4aae59