Malicious PDF — malware analysis report

Static analysis result for SHA-256 bdee7ebfdaea1a41…

MALICIOUS

PDF

66.1 KB Created: 2021-03-29 06:51:27 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 06852cda242b91fd9eb683bf00665649 SHA-1: 22e012a501827070ab785d81f9e133296c2639a7 SHA-256: bdee7ebfdaea1a4107a525ca7d05442a36ce68e8ad1e913f76a9aa82876f67fa
104 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The file was detected as malicious by ML classifiers and ClamAV, indicating a phishing and trojan payload. The presence of a visual download button and numerous embedded URLs suggests an attempt to trick the user into downloading a secondary malicious file. The primary URL identified is https://ponafet.ru/wix?keyword=rice+paddy+hat+png.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://ponafet.ru/wix?keyword=rice+paddy+hat+png
    • https://cdn.sqhk.co/sonometa/f4iiFib/shadow_battle_2._2.pdf
    • http://canonsburglake.com/hp_probook_6570b_i5-3320m_specs2vch6.pdf
    • http://mamontov-net.cc/9._snf_matematik_genler_ders_notlar9xqut.pdf
    • http://itayoga.space/celestron_skyportal_wifi_module_resetidotx.pdf
    • http://tibetterrier.ru/fonts_keyboard_apk_download5g770.pdf
    • https://cdn-cms.f-static.net/uploads/4501777/normal_604036345bc4d.pdf
    • http://organic-ita.space/how_to_play_flight_simulator_2020_on_xbox4a63h.pdf
    • https://cdn-cms.f-static.net/uploads/4389823/normal_6038fb8a94cd4.pdf
    • https://cdn.sqhk.co/nuzinipaz/hcYJgi4/gowudewujugafudup.pdf
    • http://santecmb-sarl.com/dezerunigogoralososasinekpkg1d.pdf
    • https://cdn.sqhk.co/mixagumidis/blSURhc/52868160919.pdf
    • https://cdn.sqhk.co/wepaxuwelusu/aQb6haU/guia_turismo_bruselas.pdf
    • https://cdn.sqhk.co/fiduzosi/iBVUhbF/spirit_halloween_return_policy.pdf
    • https://cdn-cms.f-static.net/uploads/4413005/normal_5fd82f192bc21.pdf
    • https://cdn.sqhk.co/vojasipi/jRLhehj/42379597137.pdf
    • http://kismyketio.com/2010_chevrolet_camaro_2ss_rs_packagep6krf.pdf
    • https://cdn.sqhk.co/posebozej/c27idFg/87640012092.pdf
    • https://cdn.sqhk.co/pomijatan/guFEigO/guess_the_word_game.pdf
    • https://cdn.sqhk.co/nasubivapu/0gelid5/gikasawobewalu.pdf
    • https://static.s123-cdn-static.com/uploads/4490529/normal_5fcd5fca8aef6.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/bededuxotulapil/samsung_printer_c460_series_driver_download.pdf
    • https://s3.amazonaws.com/patotale/naruto_shippuden_filler_episode_guide.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_off0000c777.bin
48ebd9f89336df7d5f652a83c1eab7e91befac8b9c89206dd39a5c0f9e0fa090		 pdf-font-stream PDF embedded font (sfnt) at offset 0xC777 5136 bytes
font_01_sfnt_off0000d906.bin
387339cd1101b048e07f676b0003d0f422f30270dbbaed4df1875f4b7573c44b		 pdf-font-stream PDF embedded font (sfnt) at offset 0xD906 10128 bytes

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