Malicious PDF — malware analysis report

Static analysis result for SHA-256 08e531fa24371a86…

MALICIOUS

PDF

67.0 KB Created: 2021-02-20 04:31:18 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-23
MD5: 1747b6448b4326913cb0dca413098a0b SHA-1: d0eda7c2e7e47a9c3989101e0556735df48832cd SHA-256: 08e531fa24371a86e8f7a4f82364ab1678e69fd2dfc29c423e598748cd2fa9c9
96 Risk Score

Malware Insights

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

The PDF contains an embedded URL that, when visited, likely leads to a phishing or malware distribution site. The ClamAV detection and ML classifier strongly indicate malicious intent, specifically phishing. The document body, though heavily obfuscated, contains text related to the embedded URL, reinforcing the phishing lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://leonvi.ru/aws?utm_term=what+is+the+spiritual+significance+of+the+number+1233 PDF link annotation
    • https://cdn.sqhk.co/bofagenined/jagc1ib/brothers_a_tale_of_two_sons_ps3_gameplay.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4483071/normal_602aec3b75fbe.pdfIn PDF document text
    • https://cdn.sqhk.co/vumivatuvi/WibGfKU/soccer_football_prediction_for_today_games.pdfIn PDF document text
    • http://interstart.online/bobevinedukusoxowl0oe.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4458621/normal_6011f0346288d.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4410702/normal_5fdf0e6c87ffc.pdfIn PDF document text
    • https://cdn.sqhk.co/gafisasiwu/jNljfPa/spirit_runeword_paladin_shield.pdfIn PDF document text
    • https://zolaverapudo.weebly.com/uploads/1/3/0/8/130874102/2388218.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4404990/normal_6008f69f861db.pdfIn PDF document text
    • http://kupivse.xyz/62138976148z656g.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4482020/normal_5fca89d8c95eb.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://limixumijegaf.epizy.com/book_full_form_whatsapp.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000b31b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB31B 5932 bytes
SHA-256: 60d49e713744d2f40ad2dc990dfa9bc239652450ae198af60e375e3f3de356a5
font_01_sfnt_off0000c73c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC73C 8556 bytes
SHA-256: 83fb08a663d9269c62a6ac42b580b7ffbc916924328fadab517022a95d03ec3e
font_02_sfnt_off0000e49d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE49D 17424 bytes
SHA-256: 699687600600cbcab24ba0242107ed06b728355ec7678561373d346fc019eb0e