Malicious PDF — malware analysis report

Static analysis result for SHA-256 b1e847ece16074ec…

MALICIOUS

PDF

99.1 KB Created: 2021-03-30 15:30:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 50943bae0386f1a3ebaf9a9ec45b602c SHA-1: d7054a02869d5fac78f595fc58e0c9ccb5123c6e SHA-256: b1e847ece16074ecadca1b22e4ea9b2e082c1f358324de3a4a6cc788fab1a131
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URI pointing to a suspicious domain, which is likely intended to trick the user into visiting a malicious site. The ML classifier and ClamAV detection strongly indicate malicious intent, classifying it as a phishing trojan. While no scripts were directly extracted, the presence of embedded URIs and the overall detection suggest a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

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://nipisod.ru/wix?keyword=basketball+fury+unblocked+games+66
    • http://dorulezebum.sportsontheweb.net/wemawibubaxow.pdf
    • https://cdn.sqhk.co/lasanamemego/gg3U1ih/36249664454.pdf
    • https://cdn.sqhk.co/damukowabij/aRhfhhb/crossroads_ford_wake_forest.pdf
    • https://cdn.sqhk.co/nazujovo/fOifgjf/86837719013.pdf
    • https://static.s123-cdn-static.com/uploads/4388608/normal_60031f5b9e1b6.pdf
    • https://cdn.sqhk.co/mitukutowum/E6hetaG/air_control_lite_app.pdf
    • https://cdn-cms.f-static.net/uploads/4489255/normal_604162f127be3.pdf
    • https://static.s123-cdn-static.com/uploads/4478926/normal_5fdd725c44b4f.pdf
    • https://cdn-cms.f-static.net/uploads/4377674/normal_6052ec59870a8.pdf
    • https://cdn-cms.f-static.net/uploads/4428335/normal_603e3c89814d8.pdf
    • https://cdn.sqhk.co/wimiwupo/4ddgfid/87939205737.pdf
    • http://redirerer.medianewsonline.com/xefomufabodez.pdf
    • https://cdn-cms.f-static.net/uploads/4456712/normal_6029566daa3ea.pdf
    • https://cdn-cms.f-static.net/uploads/4425737/normal_6027d0807cf7a.pdf
    • https://cdn-cms.f-static.net/uploads/4413019/normal_60243fe27f0a9.pdf
    • http://gukiduwonaxinef.getenjoyment.net/what_are_the_12_steps_for_alcoholics_anonymous.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/xomepixo/diploma_guide_book_tcu.pdf
    • https://s3.amazonaws.com/polexebuj/can_gamestop_fix_my_2ds.pdf
    • https://s3.amazonaws.com/xopugup/brave_frontier_mod_apk_element_evil.pdf
    • https://s3.amazonaws.com/fazujo/against_the_sun_full_movie_300mb.pdf
    • https://s3.amazonaws.com/bewibiwat/excel_vba_find_and_replace_all_worksheets.pdf
    • http://josesomesube.myartsonline.com/in_vitro_antidiabetic_activity.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_off00012ead.bin
9e23d0ff0a43093e9c61ac0a76a66e565bda089cf84cb260a005181d6e1f25bb		 pdf-font-stream PDF embedded font (sfnt) at offset 0x12EAD 3000 bytes
font_01_sfnt_off0001396a.bin
277f1568ca0dd15120e1bf7138778de64c80170f42b10e87fb82f838cd1c396a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1396A 5848 bytes
font_02_sfnt_off00014d4f.bin
fd60d05c275b37174c2aaeab7af459279d229bfe55167ee790573efd1b9887cd		 pdf-font-stream PDF embedded font (sfnt) at offset 0x14D4F 16812 bytes

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