Malicious PDF — malware analysis report

Static analysis result for SHA-256 e9d59749be7e8b78…

MALICIOUS

PDF

34.8 KB Created: 2021-07-06 06:00:21 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-04
MD5: 9e54452b3106a8c6843529d98acd25ca SHA-1: 8b257e266ab7963c18dd60714dffa5097a1d63c3 SHA-256: e9d59749be7e8b78cdac8311e353cfdad711f71c12e94163231a37c5e6cf7aaa
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document was flagged as malicious by an ML classifier. The file routes users through malicious redirector infrastructure and presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector high PDF_GAME_HACK_REDIRECT_LURE
    PDF's clickable action targets a redirector of the form /app/<id>/<slug>-game-hack — the landing-page shape of a large SEO 'free spins / generator / game hack' lure family that funnels victims through rotating disposable hosts to a malware/scam payload. The multi-link variants also trip ML/link-farm rules; this catches the single-link variants that otherwise score clean.
  • 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
  • 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 http://netcdn.tw/app/431946152/how-to-get-free-robux-without-surveys-game-hack PDF link annotation
    • http://mtsn-baranti.com/perpus/repository/roblox-how-to-make-free-shirts_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/free-robux-no-verification-at-all_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/roblox-windows-download-free_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/free-roblox-game-advertising_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/free-robux-hacks-no-verification_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/free-spins-and-coins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/how-to-get-robux-for-free-2021_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/roblox-flood-escape-2-hacks_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/roblox-free-robux-no-human-verification_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/free-robux-coins-hack_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/can-you-change-your-username-on-roblox-back-for-free_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/minecraft-xbox-360-free-download-code_GM479516143.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/free-minecraft-com_GM479516143.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/get-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/minecraft-iphone-free_GM479516143.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/how-to-get-free-tiktok-followers_GM835599320.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/wurst-commands_GM479516143.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/roblox-online-robux-hack-no-survey_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/free-gifts-right-now-roblox-offical-fuzion_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/how-does-roblox-gg-hack-your-acc_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003021.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3021 22068 bytes
SHA-256: 60011309bc7965c32992e5a3775bf4331a8879387efe9c935f3848a8ff20a283
font_01_sfnt_off000060e6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x60E6 19760 bytes
SHA-256: 224060bfe71746c825dd67c2d9d56e7c04ac00f393a1a40fba3a75915ce09ff4

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