Malicious PDF — malware analysis report

Static analysis result for SHA-256 a7c96894daa2bc1e…

MALICIOUS

PDF

34.3 KB Created: 2021-07-07 22:14:02 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-05
MD5: 3a3730656e2faf19dcb84505f3ec2184 SHA-1: 7a0407aa7b10c225ebd02e765aa1bb6812a6512e SHA-256: a7c96894daa2bc1e564dd89e2d12aa376d5d0fa80cf7c2ada0fb6cf8fa7e98e7
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/406889139/moonactive-coin-master-hack-game-hack PDF link annotation
    • http://manegeri1kotatasikmalaya.sch.id/__statics/gudangsoal/files/roblox-vehicle-simulator-money-hack-2021_GM431946152.pdfIn PDF document text
    • http://manegeri1kotatasikmalaya.sch.id/__statics/gudangsoal/files/coin-master-gift-link_GM406889139.pdfIn PDF document text
    • http://manegeri1kotatasikmalaya.sch.id/__statics/gudangsoal/files/minecraft-noob-vs-pro-vs-hacker-vs-god_GM479516143.pdfIn PDF document text
    • http://manegeri1kotatasikmalaya.sch.id/__statics/gudangsoal/files/how-to-get-free-coins-on-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://manegeri1kotatasikmalaya.sch.id/__statics/gudangsoal/files/coin-game_GM406889139.pdfIn PDF document text
    • http://manegeri1kotatasikmalaya.sch.id/__statics/gudangsoal/files/roblox-hack-app_GM431946152.pdfIn PDF document text
    • http://manegeri1kotatasikmalaya.sch.id/__statics/gudangsoal/files/coin-master-free-spins-2021-today_GM406889139.pdfIn PDF document text
    • http://manegeri1kotatasikmalaya.sch.id/__statics/gudangsoal/files/how-to-get-minecraft-for-free-on-ipad_GM479516143.pdfIn PDF document text
    • http://manegeri1kotatasikmalaya.sch.id/__statics/gudangsoal/files/roblox-com-hack_GM431946152.pdfIn PDF document text
    • http://manegeri1kotatasikmalaya.sch.id/__statics/gudangsoal/files/minecraft-pocket-edition-download-free-pe-calculator_GM479516143.pdfIn PDF document text
    • http://manegeri1kotatasikmalaya.sch.id/__statics/gudangsoal/files/get-free-robux-without-doing-anything_GM431946152.pdfIn PDF document text
    • http://manegeri1kotatasikmalaya.sch.id/__statics/gudangsoal/files/roblox-hack-999999-robux-pc_GM431946152.pdfIn PDF document text
    • http://manegeri1kotatasikmalaya.sch.id/__statics/gudangsoal/files/free-coin-master-link-2021_GM406889139.pdfIn PDF document text
    • http://manegeri1kotatasikmalaya.sch.id/__statics/gudangsoal/files/minecraft-education-edition-free_GM479516143.pdfIn PDF document text
    • http://manegeri1kotatasikmalaya.sch.id/__statics/gudangsoal/files/roblox-ha-sido-hackeado-por-jhon-doe_GM431946152.pdfIn PDF document text
    • http://manegeri1kotatasikmalaya.sch.id/__statics/gudangsoal/files/free-robux-roblox-download_GM431946152.pdfIn PDF document text
    • http://manegeri1kotatasikmalaya.sch.id/__statics/gudangsoal/files/hack-tools-roblox-jailbreak_GM431946152.pdfIn PDF document text
    • http://manegeri1kotatasikmalaya.sch.id/__statics/gudangsoal/files/roblox-waepon-simolator-hack_GM431946152.pdfIn PDF document text
    • http://manegeri1kotatasikmalaya.sch.id/__statics/gudangsoal/files/free-robux-place_GM431946152.pdfIn PDF document text
    • http://manegeri1kotatasikmalaya.sch.id/__statics/gudangsoal/files/how-to-get-free-robux-without-email_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_off00003155.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3155 22532 bytes
SHA-256: 1dfff30e2b8d8662f59f173a175b1687dbd7282e5e416ef3c7e3e6afee7345d2
font_01_sfnt_off000063b3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x63B3 18120 bytes
SHA-256: e762f234ec7f8646457f779e72cb82b89b7c5f8cd93263d372a1caaf69bd1985

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