Malicious PDF — malware analysis report

Static analysis result for SHA-256 2f52b5cc26bbe43c…

MALICIOUS

PDF

33.7 KB Created: 2021-06-19 19:49:06 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-18
MD5: 0d922271a019e199c004654bf350e02e SHA-1: aad60d8166e8a2a695d59a082b4a1274552ea91f SHA-256: 2f52b5cc26bbe43c305fbe650912c898848dffcac1dfe8cb1b035632a1d99e75
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.co/app/431946152/can-i-get-robux-for-free-game-hack PDF link annotation
    • http://slim.sisminkada.net/repository/bhop-cheats-roblox_GM431946152.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/minecraft-noob-vs-pro-vs-hacker_GM479516143.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/blackberry-hack-roblox_GM431946152.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/master-coin-free-link_GM406889139.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/hacks-in-roblox-prison-life_GM431946152.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/free-robux-exe_GM431946152.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/free-build-sims-4-roblox_GM431946152.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/fnaf-roblox-free-items_GM431946152.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/free-robux-only-username-no-human-verification_GM431946152.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/coin-master-free-spins-and-coins-2021_GM406889139.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/robux-com-free-robux_GM431946152.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/how-to-hack-sword-fighting-tournament-on-roblox-2021_GM431946152.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/roblox-ghost-hack-cheat-engine_GM431946152.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/minecraft-116-apk-download_GM479516143.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/cheat-codes-for-phantom-forces-roblox_GM431946152.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/roblox-speed-hack-lua-script_GM431946152.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/roblox-dominus-free_GM431946152.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/free-robux-codes-not-clickbait_GM431946152.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/fan-page-coin-master_GM406889139.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/ww-roblox-come_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_off00002e75.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2E75 22084 bytes
SHA-256: b6b46f8409c24a3b4176c34ae1691b9bb908457e6141b3b760ed2eecc928a27d
font_01_sfnt_off00005f66.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5F66 18820 bytes
SHA-256: a8ebb2e02c07fcee768b9c7d2548d14d4f98ce7ae4a3dab28d470086f2c44dd3

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