Malicious PDF — malware analysis report

Static analysis result for SHA-256 6e0349baf233ec29…

MALICIOUS

PDF

76.5 KB Created: 2021-03-16 19:21:30 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8466d45b31d3abe13740ca0949a00d84 SHA-1: e1fded5c0f576a2c753df618740d4f4341292dcf SHA-256: 6e0349baf233ec29fce497f3db664f8890fbc4c7b4082ee1945570e5bb2d0562
96 Risk Score

Malware Insights

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

The PDF file is identified as malicious by ClamAV and an ML classifier. It contains an embedded URL that, when clicked, leads to a suspicious domain. The document body, though heavily obfuscated, suggests a lure related to a product installation manual, consistent with phishing tactics.

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://jacksth.ru/wix?keyword=new+vision+pro+8000+installation+manual
    • https://cdn-cms.f-static.net/uploads/4427273/normal_6017563f5b108.pdf
    • https://cdn.sqhk.co/rarukaboz/c3nBibG/time_traveler_s_wife_sequel.pdf
    • https://cdn.sqhk.co/molodomo/jwKvggh/high_waisted_button_fly_pants.pdf
    • http://xaninivinekeni.iblogger.org/13384025761.pdf
    • https://static.s123-cdn-static.com/uploads/4382781/normal_5fee6d0c30598.pdf
    • http://folivapizi.66ghz.com/mifepetovobogifage.pdf
    • https://cdn.sqhk.co/vuxesojogugu/VACG0GY/zewatepi.pdf
    • https://static.s123-cdn-static.com/uploads/4480582/normal_5fdf8d867835a.pdf
    • http://wajulosuju.22web.org/jinja_template_example_django.pdf
    • http://mevatupumave.22web.org/antibodies_and_immunoglobulins.pdf
    • https://cdn.sqhk.co/jaselavujuwi/M5ifkyg/22553539045.pdf
    • https://cdn.sqhk.co/pananumujo/6hggfhp/kajibakedosobuvejibifa.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://desekipodepi.epizy.com/2668648582.pdf
    • http://xavavumima.rf.gd/61927985078.pdf
    • https://5fb42ee6-a9be-400a-98f2-f9d4b9f720c8.filesusr.com/ugd/1813b3_2b64a34e457148d9aa51db7efb66df6d.pdf?index=true
    • https://db532842-334f-4efb-8993-e67ec8f20ff5.filesusr.com/ugd/bc5be3_a24850afb13d4fd6a77910946bc11033.pdf?index=true
    • http://rizibapuzaduxe.epizy.com/55110446551.pdf
    • https://09235f31-469a-4613-94fc-36d04c1f642a.filesusr.com/ugd/8b6407_bd68f42f1ce046de858b5bbe88b6f7a0.pdf?index=true
    • https://s3.amazonaws.com/jixeremipet/bulleya_song_sultan_karaoke.pdf
    • https://665985ba-8e9f-4173-b993-17a3090d61d7.filesusr.com/ugd/08421c_022f9fc9ab5b4b078e0f5a0d7c8a916a.pdf?index=true
    • https://s3.amazonaws.com/bikikanafopavu/62076754149.pdf
    • http://nilorarikaz.rf.gd/lawawenona.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_off0000ead5.bin
48150f4054b610f53fff55f87b56abe7d6a0acdbfb534c035b0fdfb9008387fb
pdf-font-stream PDF embedded font (sfnt) at offset 0xEAD5 5424 bytes
font_01_sfnt_off0000fd48.bin
6025f17f2ead4e18de02b867da5374feafbc3a6ff6df66e9fc88d77b806fae7c
pdf-font-stream PDF embedded font (sfnt) at offset 0xFD48 11472 bytes