Malicious PDF — malware analysis report

Static analysis result for SHA-256 a7a4ae76b05d68ce…

MALICIOUS

PDF

69.3 KB Created: 2021-03-01 20:40:38 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: a7f172dbf5ff8c004914c5dafa7b5f0e SHA-1: c044964650e190beb6f19b8d519bf2db15ea63c2 SHA-256: a7a4ae76b05d68ce8bb341d787a5b45116ab7435578b00ec015c1d19789c93c7
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://botokaw.ru/wix?keyword=brooklyn+pizza+hackensack+menu PDF link annotation
    • http://sodazetibup.iblogger.org/amaravathi_movie_song_starmusiq.pdfIn PDF document text
    • https://bopugokux.weebly.com/uploads/1/3/4/9/134901566/tededopurinetu.pdfIn PDF document text
    • https://lokawinopigu.weebly.com/uploads/1/3/2/7/132712062/ponuwamur-junudamevew-pipepegimuxize-xetobawu.pdfIn PDF document text
    • http://findssldz.xyz/barriers_to_innovation_in_the_workplace9hqbd.pdfIn PDF document text
    • https://depopuxa.weebly.com/uploads/1/3/4/8/134893869/vidinupuzosu-gudazuvubof.pdfIn PDF document text
    • http://copyrightsupporteds.com/387664835216xlah.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4465907/normal_5fc7ee028c3a1.pdfIn PDF document text
    • https://sozejaras.weebly.com/uploads/1/3/2/6/132695734/7044507.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/vatakefojunib/basic_of_electronics_engineering_free.pdfIn PDF document text
    • http://gamupuzif.epizy.com/angst_1983_movie.pdfIn PDF document text
    • http://falagiwodoki.rf.gd/electronics_and_instrumentation_engineering_books_free.pdfIn PDF document text
    • https://s3.amazonaws.com/mefadedosuw/pedro_paramo_english_audiobook.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_off0000d28f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD28F 5436 bytes
SHA-256: c4cb438b6fd151cfc203d46daf25fb380e51794b6319eb6ce9aed383c7187c10
font_01_sfnt_off0000e4f8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE4F8 10368 bytes
SHA-256: c145d6fefa9fdede68eb40dc67b9662710b6611830bab79de5a052d57c5fcf39