Malicious PDF — malware analysis report

Static analysis result for SHA-256 2627aba2a32394c5…

MALICIOUS

PDF

83.6 KB Created: 2021-03-14 17:48:55 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 47cab4a371f54565e805f26dbe92f2c8 SHA-1: 3417570d99345c2be075902176bc5217d49c15aa SHA-256: 2627aba2a32394c5655a2b0ce4b26b6c9e86f2628358b51f779a9e89e6093345
96 Risk Score

Malware Insights

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

The PDF contains an embedded URI pointing to a suspicious domain, which is a strong indicator of a phishing or malware distribution attempt. The ML classifier and ClamAV detection further support the malicious nature of the file. While no scripts were directly extracted, the presence of external links suggests the document is designed to redirect the user to a malicious site.

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://jumiwimov.ru/wix?keyword=hp+pavilion+17-e016dx+charger
    • https://cdn-cms.f-static.net/uploads/4417643/normal_5fd3304f8ecef.pdf
    • https://cdn.sqhk.co/pidagasew/41AYcui/checklist_template_word_free.pdf
    • http://lnstagram-copyright-supports.com/49804373265dop28.pdf
    • https://cdn.sqhk.co/zibomevuguli/hIAxaq7/football_world_cup_penalty_shootout_2010_unblocked.pdf
    • https://static.s123-cdn-static.com/uploads/4476437/normal_5ffcc671020c8.pdf
    • http://timelessdecorum.com/29742988877n3h5o.pdf
    • http://sevagawos.getenjoyment.net/the_colour_of_magic_book_download.pdf
    • http://autolombardpro.ru/4623875539905nwx.pdf
    • http://repair-kompov.ru/5_year_plan_template_for_workbiib5.pdf
    • http://mirumumavetifun.mypressonline.com/85871024981.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://sagalesokalu.epizy.com/change_reset_password_email_template_laravel.pdf
    • https://uploads.strikinglycdn.com/files/55b97f37-897d-4cef-81f5-7892f9b2d7ec/data_structure_code_in_java.pdf
    • http://pidodexogejax.myartsonline.com/hitachi_65_tv_reviews.pdf
    • http://zazedosipafefu.epizy.com/expressed_breast_milk_feeding_guidelines.pdf
    • https://uploads.strikinglycdn.com/files/91742ffa-4bc6-479a-a56f-ebf506a0de36/influence_science_and_practice_audiobook_free.pdf
    • http://lupumik.rf.gd/boyz_2_marathi_movie_filmyzilla.pdf
    • http://wusumuforibit.epizy.com/45028463670.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_off0001078f.bin
1716edce685c1556a7e67197f275215af55a5a0c1b4a3602c2a7ed035f305cb5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1078F 5704 bytes
font_01_sfnt_off00011b19.bin
e95ae740b9bc37876d0b9eaf62fc2157fa2ff62a5406c8a96820f8d9372168fd		 pdf-font-stream PDF embedded font (sfnt) at offset 0x11B19 11144 bytes

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