Malicious PDF — malware analysis report

Static analysis result for SHA-256 5e16aacf16ad9158…

MALICIOUS

PDF

83.2 KB Created: 2021-05-01 09:30:36 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: b4045bc81df35b62b809ea8a2dc52994 SHA-1: 61eef53fbd0fa5e5ed8d47e960e1912dee67fa64 SHA-256: 5e16aacf16ad915880bfdbe8649cb5cb96f139232a2abc32f51fc8767e6373a3
96 Risk Score

Malware Insights

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

The PDF document contains an embedded URL that directs users to a phishing site. The ML classifier and ClamAV detection strongly indicate malicious intent, likely for phishing or malware distribution. Although no scripts were explicitly extracted, the PDF structure and embedded URI suggest an attempt to redirect the user to a malicious resource.

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://resalured.ru/strik?utm_term=how+to+pair+two+ue+boom+speakers+together
    • http://exemplpusj.com/antecedent_form_meaning_in_telugu6oa2e.pdf
    • http://gravkamen.ru/what_is_the_gospel_of_wealthze9c4.pdf
    • http://idealica-tufficiale.website/55538448452xizap.pdf
    • http://copyrightproblem.com/the_death_cure_movie_reviewgy3jc.pdf
    • http://mini-camera-super.club/naruto_shippuden_manga_completo9qnto.pdf
    • http://logoped-samara.ru/seedless_raspberry_jam_recipe_low_sugarqrk3m.pdf
    • http://com-servers.online/nawolesq8m5.pdf
    • http://frut-tree.site/construct_an_isosceles_right_angled_triangle_in_which_the_hypotenuse_is_8cm_longe1lml.pdf
    • https://cdn-cms.f-static.net/uploads/4392462/normal_601b1b42503da.pdf
    • http://baditunabupiru.mywebcommunity.org/safojelazusof.pdf
    • http://fodefon.getenjoyment.net/3467306913.pdf
    • http://duvazejezirofid.22web.org/private_facebook_videos_to_computer.pdf
    • https://cdn-cms.f-static.net/uploads/4412387/normal_603ef07f5e1a6.pdf
    • http://vebilodugisugod.iblogger.org/bukij.pdf
    • https://cdn-cms.f-static.net/uploads/4472221/normal_6046895781dde.pdf
    • http://supernefritroller.xyz/23420014772ro4jn.pdf
    • https://cdn-cms.f-static.net/uploads/4449783/normal_605c87908efc7.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • http://texegap.epizy.com/wasazatasigizokituxekoze.pdf
    • http://nimanexobubibub.onlinewebshop.net/perimetry_interpretation.pdf
    • http://faxiruvud.myartsonline.com/best_book_for_mathematical_physics_for_bsc.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f912.bin
21cedee8ee77fd042ca61173e0dad952e63b5b1ae8b98aef2751a497ee5f45cf
pdf-font-stream PDF embedded font (sfnt) at offset 0xF912 5236 bytes
font_01_sfnt_off00010aec.bin
500deb7b53a78bf6e6daecc03e1c6d6ed7160a752b47c4ff4d90f1318e7b1538
pdf-font-stream PDF embedded font (sfnt) at offset 0x10AEC 11164 bytes
font_02_sfnt_off00013116.bin
1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e
pdf-font-stream PDF embedded font (sfnt) at offset 0x13116 4324 bytes