Malicious PDF — malware analysis report

Static analysis result for SHA-256 2ae694050d41e3c5…

MALICIOUS

PDF

71.0 KB Created: 2021-02-28 23:56:30 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: f5c3f68bdc154aa4ddb1192ae200eca4 SHA-1: 66c2e5d7f772fc93e7d980ea5fe4c5e9bb49bf44 SHA-256: 2ae694050d41e3c58849f9a931d9f364548d13da2b3aa0b0bb351a0c379f2d6a
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://dafemum.ru/award?keyword=how+to+install+ice+maker+in+kenmore+refrigerator In PDF document text
    • https://cdn.sqhk.co/virurewev/hbYieZz/munixanuwazizomotumi.pdfIn PDF document text
    • http://lezigovedavide.getenjoyment.net/delonghi_magnifica_s_smart_fully_automatic_espresso_reviews.pdfIn PDF document text
    • https://lepamume.weebly.com/uploads/1/3/4/8/134882258/zapip-nivel.pdfIn PDF document text
    • https://cdn.sqhk.co/dofexoxev/dghA6hi/furesa.pdfIn PDF document text
    • http://nujinedopidil.iblogger.org/71472555222.pdfIn PDF document text
    • http://tapabafana.22web.org/imdb_unbelievable_parents_guide.pdfIn PDF document text
    • http://daneganonud.22web.org/bolizufikuro.pdfIn PDF document text
    • http://mimiluzaxapurum.22web.org/what_is_drix_in_osmosis_jones.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://mawokale.myartsonline.com/why_is_my_dryer_making_a_loud_screeching_noise.pdfIn PDF document text
    • http://talifox.rf.gd/kekasih_idaman_ost_ajari_aku_islam.pdfIn PDF document text
    • http://bivojeda.atwebpages.com/how_to_start_a_comic_script.pdfIn PDF document text
    • http://duzebufulumaw.epizy.com/5948002037.pdfIn PDF document text
    • http://fujafinu.epizy.com/how_to_get_haad_dataflow_report.pdfIn PDF document text
    • http://soxomipimumoraz.rf.gd/baahubali_tamil_movie_kuttymovies.pdfIn PDF document text
    • http://revuzulikasulo.epizy.com/rogers_anyplace_tv_apk.pdfIn PDF document text
    • http://jadaxoletigagin.epizy.com/41858433950.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_off0000daa6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDAA6 5320 bytes
SHA-256: 7fa4f64e14e3ebc06f163bab232119eeb0799a882fe9ec2cd595a58ad7f46d96
font_01_sfnt_off0000ecb8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xECB8 9896 bytes
SHA-256: 132db19b89d4681d9216d8cab18d20a81d8220b15020c5bb305836c0b37c61e0