Malicious PDF — malware analysis report

Static analysis result for SHA-256 1c6c6b414787aa34…

MALICIOUS

PDF

75.8 KB Created: 2021-05-03 18:26:02 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 22edf59a2b8e87cefa6e56e8c4cc0af2 SHA-1: 979bf4ebc17037f035e48edfc416f28dbb079949 SHA-256: 1c6c6b414787aa34749efc7d47283e6119166e50bfdecf136affda862021db5a
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains an embedded URI that redirects to a URL associated with phishing. The ML classifier and ClamAV detection strongly indicate malicious intent. While no scripts were explicitly extracted, the PDF structure and embedded URI suggest it's designed to trick users into visiting a malicious site, likely for credential harvesting or further malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://resalured.ru/strik?utm_term=remote+control+codes+comcast+cable+box
    • https://cdn.sqhk.co/kusamika/gxvjiVh/national_geographic_channel_fios_nyc.pdf
    • http://dakekunagefasak.sportsontheweb.net/asbabun_nuzul_surat_al_ashr.pdf
    • http://fb-ig-copyright.com/don_t_starve_shipwrecked_warly_recipes9cnyu.pdf
    • http://servempieza.site/winavolijil0mc48.pdf
    • https://cdn.sqhk.co/wemorapi/ojbhchh/befiliki.pdf
    • http://libralab.digital/79054762620lsigw.pdf
    • https://cdn.sqhk.co/gowamojon/bhfmwhd/notivilazexuvivafimuzinof.pdf
    • http://bigijawiv.scienceontheweb.net/centrales_termicas.pdf
    • http://leludezoz.scienceontheweb.net/tunilorolita.pdf
    • http://pokezokebawi.mygamesonline.org/pamiletipikivani.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://zagupijalixi.myartsonline.com/aradois_bula_anvisa.pdf
    • https://uploads.strikinglycdn.com/files/558500d0-08e5-42de-8115-4a3c68df863f/what_order_should_i_read_the_forgotten_realms_books.pdf
    • http://dubuxizomigowab.rf.gd/40459244025.pdf
    • http://pizoxuwa.epizy.com/bach_piano_sheet_music.pdf
    • https://uploads.strikinglycdn.com/files/f3befc7b-299d-4bf1-b0fd-d9a6120b30e8/bow_tie_pasta_salad_with_creamy_italian_dressing.pdf
    • http://kerakuwopimarin.epizy.com/abc_calligraphy_sheets.pdf
    • https://uploads.strikinglycdn.com/files/2e23587e-b49b-4ff0-9281-11fdddc40be1/33497542235.pdf
    • http://wegugoleta.onlinewebshop.net/rufigebuzefopabafuzisa.pdf
    • https://uploads.strikinglycdn.com/files/d4128990-a370-4a3d-ad77-24aeb43b0d42/bokukixoje.pdf
    • http://diwavubodinaroj.myartsonline.com/terigaxesozimudiribexut.pdf
    • http://peneperu.epizy.com/lankavatara_sutra_summary.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ea9b.bin
213513ca48fb4dfd9d997cf110773f64456bb0faf8dab2a30cf7319df9a41770
pdf-font-stream PDF embedded font (sfnt) at offset 0xEA9B 5300 bytes
font_01_sfnt_off0000fc89.bin
5dee8287f803f927b207cb8ca79628df456de9854c57fd804ff04e73e6946415
pdf-font-stream PDF embedded font (sfnt) at offset 0xFC89 10712 bytes