Malicious PDF — malware analysis report

Static analysis result for SHA-256 681332b63b19c34d…

MALICIOUS

PDF

36.9 KB Created: 2021-06-25 15:54:26 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 2c99f1b0c56f49ead905da17ce5e2003 SHA-1: 9335de42350b9b4d9aa407d8327e1aab08509d58 SHA-256: 681332b63b19c34de17e91731b433f6c47148929c7703c92d12f883c6d6bb86c
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF document contains multiple links and references to game hacks and free currency generators for popular games like Roblox and Coin Master. The primary link, http://netcdn.co/app/431946152/roblox-booga-booga-fly-hack-may-26-2021-mojo-game-hack, is identified as a lure for game hacks. The document body and embedded URLs suggest a social engineering tactic to trick users into visiting malicious sites or downloading further malware. No scripts were extracted from this sample.

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/roblox-booga-booga-fly-hack-may-26-2021-mojo-game-hack PDF link annotation
    • https://7gking.tw/upload/files/how-to-hack-musical-chairs-in-roblox_GM431946152.pdfIn PDF document text
    • https://7gking.tw/upload/files/how-to-get-free-robux-kindle-fire_GM431946152.pdfIn PDF document text
    • https://7gking.tw/upload/files/omggh-new-roblox-hack-lumber-tycoon-gui_GM431946152.pdfIn PDF document text
    • https://7gking.tw/upload/files/roblox-hack-generator_GM431946152.pdfIn PDF document text
    • https://7gking.tw/upload/files/free-robux-hack-no-verification_GM431946152.pdfIn PDF document text
    • https://7gking.tw/upload/files/free-coin-master-spins-no-verification_GM406889139.pdfIn PDF document text
    • https://7gking.tw/upload/files/how-to-get-free-unlimited-robux_GM431946152.pdfIn PDF document text
    • https://7gking.tw/upload/files/coin-master-free-spins-link-2021-today_GM406889139.pdfIn PDF document text
    • https://7gking.tw/upload/files/free-roblox-hack_GM431946152.pdfIn PDF document text
    • https://7gking.tw/upload/files/free-valkyrie-roblox_GM431946152.pdfIn PDF document text
    • https://7gking.tw/upload/files/withdraw-robux_GM431946152.pdfIn PDF document text
    • https://7gking.tw/upload/files/free-robux-generator-no-survey-no-download-no-human-verification_GM431946152.pdfIn PDF document text
    • https://7gking.tw/upload/files/minecraft-dungeons-download-free_GM479516143.pdfIn PDF document text
    • https://7gking.tw/upload/files/claim-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • https://7gking.tw/upload/files/roblox-games-with-free-radio_GM431946152.pdfIn PDF document text
    • https://7gking.tw/upload/files/coin-master-heaven-free-daily-spins_GM406889139.pdfIn PDF document text
    • https://7gking.tw/upload/files/how-to-get-minecraft-for-free-on-your-phone_GM479516143.pdfIn PDF document text
    • https://7gking.tw/upload/files/robux-free-com_GM431946152.pdfIn PDF document text
    • https://7gking.tw/upload/files/how-to-get-knvies-in-assassin-roblox-hack_GM431946152.pdfIn PDF document text
    • https://7gking.tw/upload/files/google-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003762.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3762 22288 bytes
SHA-256: 0d694073ba7b2f9bfbf3e8b96a29899e137f587dbf16e55e0bdaae823b98fa63
font_01_sfnt_off000068b7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x68B7 19956 bytes
SHA-256: cb0745d89822ba4b3464bcf3a0c710f31a1a98d54542a7a7260b6188fd6f1b07

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