Malicious PDF — malware analysis report

Static analysis result for SHA-256 95d4b3b4ba1e4cd2…

MALICIOUS

PDF

79.1 KB Created: 2021-03-21 22:44:58 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: 013b96731ad0344a99224e02c7c44299 SHA-1: 923cb23f504b3593e26342c5b82cdb7db39b3b8d SHA-256: 95d4b3b4ba1e4cd2f764b0f6393142ca20bb2a66b84ac5ef5d4b815ac29c792c
96 Risk Score

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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/award?keyword=ketogenic+diet+pdf+lyle PDF link annotation
    • https://cdn.sqhk.co/potebuso/cTCjhzE/4058503862.pdfIn PDF document text
    • https://cdn.sqhk.co/jesupasuzoku/WAvtgfS/37329792475.pdfIn PDF document text
    • http://hookup671.site/93542581686xr8bg.pdfIn PDF document text
    • http://jadogaxarabu.mygamesonline.org/present_perfect_simple_affirmative_negative_and_interrogative_exercises.pdfIn PDF document text
    • http://fastnoutservice.ru/how_to_reset_baofeng_uv-822dlhg.pdfIn PDF document text
    • https://cdn.sqhk.co/lazimafuxuxi/S6d3icQ/85540303175.pdfIn PDF document text
    • https://cdn.sqhk.co/desogepupema/Cijc9ja/rijupuwateji.pdfIn PDF document text
    • https://cdn.sqhk.co/xewebevij/ulijdhd/pepatiwol.pdfIn PDF document text
    • https://cdn.sqhk.co/lixejudazeza/ibjfiea/faxajivinakilidena.pdfIn PDF document text
    • https://cdn.sqhk.co/segenapiza/iiEggph/gilepovogujomubukipukefo.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/dakebesuvum/alcatel_one_touch_retro_flip_phone_sprint.pdfIn PDF document text
    • https://s3.amazonaws.com/gupawupigawono/59131567275.pdfIn PDF document text
    • https://s3.amazonaws.com/gotijejaj/holy_bible_kjv_audio.pdfIn PDF document text
    • https://s3.amazonaws.com/gagagakigibapo/66397708950.pdfIn PDF document text
    • https://s3.amazonaws.com/dakebesuvum/24454307207.pdfIn PDF document text
    • https://s3.amazonaws.com/fajujiju/xuvunefipi.pdfIn PDF document text
    • https://s3.amazonaws.com/wukevirenesu/chris_brown_album_indigo_deluxe.pdfIn PDF document text
    • https://s3.amazonaws.com/resixexi/geroramopabediw.pdfIn PDF document text
    • https://s3.amazonaws.com/fevobelijogal/dodugeneses.pdfIn PDF document text
    • http://madigekole.onlinewebshop.net/85892934377.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_off0000f6eb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF6EB 4908 bytes
SHA-256: 139f293da7c4037edb0799c4690096796c617cb1372b3b176096a4867b76620f
font_01_sfnt_off000107d1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x107D1 11148 bytes
SHA-256: 5686ffddb9acb6e42e473cd277731f049856d9dc545fe702de703a402b4cf34d

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