Malicious PDF — malware analysis report

Static analysis result for SHA-256 ea999c2ca9adf456…

MALICIOUS

PDF

34.6 KB Created: 2021-07-03 17:04:10 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-05
MD5: b668f5227dead3844c41f6e8bd55e41c SHA-1: 11af648526cc8c97f736111ed32f133eb20d0222 SHA-256: ea999c2ca9adf456b062f8871ee4eff1afe2ffeb51ff3865780cf7542690da65
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a lure for free game hacks, specifically directing users to 'http://netcdn.tw/app/479516143/create-minecraft-server-free-game-hack'. This URL, along with numerous others found in the document body and extracted URLs, suggests a phishing or malware distribution campaign. The ML classifier strongly flagged this PDF as malicious, reinforcing the intent to deceive users into clicking malicious links.

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/479516143/create-minecraft-server-free-game-hack PDF link annotation
    • http://www.pspmrsmkklawang.com/opac/repository/free-roblox-on-computo_GM431946152.pdfIn PDF document text
    • http://www.pspmrsmkklawang.com/opac/repository/roblox-fast-speed-hack_GM431946152.pdfIn PDF document text
    • http://www.pspmrsmkklawang.com/opac/repository/minecraft-free-online-games_GM479516143.pdfIn PDF document text
    • http://www.pspmrsmkklawang.com/opac/repository/real-minecraft-for-free_GM479516143.pdfIn PDF document text
    • http://www.pspmrsmkklawang.com/opac/repository/cheats-roblox-rocitizens_GM431946152.pdfIn PDF document text
    • http://www.pspmrsmkklawang.com/opac/repository/real-hack-for-coin-master_GM406889139.pdfIn PDF document text
    • http://www.pspmrsmkklawang.com/opac/repository/roblox-free-800-robux-free_GM431946152.pdfIn PDF document text
    • http://www.pspmrsmkklawang.com/opac/repository/roblox-hack-mod_GM431946152.pdfIn PDF document text
    • http://www.pspmrsmkklawang.com/opac/repository/free-coin-master-spins-and-coins_GM406889139.pdfIn PDF document text
    • http://www.pspmrsmkklawang.com/opac/repository/dragon-ball-final-stand-roblox-hack_GM431946152.pdfIn PDF document text
    • http://www.pspmrsmkklawang.com/opac/repository/how-to-get-more-free-coins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://www.pspmrsmkklawang.com/opac/repository/get-robux-com_GM431946152.pdfIn PDF document text
    • http://www.pspmrsmkklawang.com/opac/repository/free-robux-penut_GM431946152.pdfIn PDF document text
    • http://www.pspmrsmkklawang.com/opac/repository/roblox-how-to-make-an-anti-cheat_GM431946152.pdfIn PDF document text
    • http://www.pspmrsmkklawang.com/opac/repository/mobile-roblox-hack-download_GM431946152.pdfIn PDF document text
    • http://www.pspmrsmkklawang.com/opac/repository/roblox-free-nonskid-exploits_GM431946152.pdfIn PDF document text
    • http://www.pspmrsmkklawang.com/opac/repository/free-robux-codes-2021_GM431946152.pdfIn PDF document text
    • http://www.pspmrsmkklawang.com/opac/repository/roblox-treasure-hunt-simulator-hack-script_GM431946152.pdfIn PDF document text
    • http://www.pspmrsmkklawang.com/opac/repository/roblox-free-mvp_GM431946152.pdfIn PDF document text
    • http://www.pspmrsmkklawang.com/opac/repository/static-moonactive-net-rewards_GM406889139.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_off000033a4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x33A4 22436 bytes
SHA-256: a14a3f7592fb18552035536ac4e82b00e51a6d92aadc6796d6a59244fcbfd1e6
font_01_sfnt_off00006578.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6578 17968 bytes
SHA-256: 8862e0fd8d2cab3005f580dff2cd7c982356054071a32259706c613b74bd5842

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