Malicious PDF — malware analysis report

Static analysis result for SHA-256 a75f11552ea109e3…

MALICIOUS

PDF

98.3 KB Created: 2021-02-19 01:58:56 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-12
MD5: 2ee3c82f91cbafc16d43a765205a6312 SHA-1: bb7ed891ec4a1409f3a70285640e2d38cd752752 SHA-256: a75f11552ea109e32ad9bdf9dd4d4a3d15ae0491bfced3ad95c264b314ca4296
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URI that points to a suspicious domain, likely intended to host phishing content or malware. The ML classifier and ClamAV detection strongly indicate malicious intent. The document body, though heavily obfuscated, appears to be a lure related to search queries, suggesting a phishing or social engineering attack.

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://maypoin.ru/123?utm_term=which+is+the+best+dewalt+table+saw PDF link annotation
    • https://cdn.sqhk.co/tepobugu/eejeOyJ/falling_action_meaning_in_tagalog.pdfIn PDF document text
    • http://life50it.pro/beravotunulojol2ed0u.pdfIn PDF document text
    • http://aycotoro7.xyz/bomizopefhgmv.pdfIn PDF document text
    • https://cdn.sqhk.co/gegefemorosu/aji6Xii/world_war_1_deaths_names.pdfIn PDF document text
    • https://cdn.sqhk.co/mawejoxejobe/jgfJwia/free_music_for_youtube_videos_download.pdfIn PDF document text
    • https://cdn.sqhk.co/dikizumi/jgTiijg/pizixibewupupakarepufufab.pdfIn PDF document text
    • http://septiki-rf.website/number_theory_textbook0wgvt.pdfIn PDF document text
    • http://italywow.space/303249383941sdfi.pdfIn PDF document text
    • https://cdn.sqhk.co/gukokefa/jYgiibv/drawing_board_game_cardstock.pdfIn PDF document text
    • http://helper-badges.com/thu_cn_h_trong_revere_ma20beu.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/musoxifuvitalo/statistics_and_probability_with_applications_for_engineers_and_scientists.pdfIn PDF document text
    • https://s3.amazonaws.com/mixanaz/gainsborough_trilock_omni_template.pdfIn PDF document text
    • https://s3.amazonaws.com/megodipewukitoj/cholamandalam_ms_general_insurance_policy_copy.pdfIn PDF document text
    • https://s3.amazonaws.com/fejififimaketo/definition_of_budgetary_process.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_off00012b8d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12B8D 5176 bytes
SHA-256: 5101ffe6b3b9c6af4c3a48064589abaa001c73f159911f8743de1b42f082e2e4
font_01_sfnt_off00013d41.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13D41 12632 bytes
SHA-256: 205bc5f128c34b7ee33ac58f0a15a96ca5fabdc9adfc2b382fc7dc8339207215
font_02_sfnt_off000166e6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x166E6 16104 bytes
SHA-256: 273797eaa8d9e3fc47527fd9bb9f75462b51c92eb25b9049d7670edd46de8ccd

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