Malicious PDF — malware analysis report

Static analysis result for SHA-256 0c6d97da9e47c605…

MALICIOUS

PDF

34.0 KB Created: 2021-07-08 23:16:38 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 1f4819e733b63b8f227976a22628851f SHA-1: d198fe100ab5d303102ad6e85d0dd1974a498696 SHA-256: 0c6d97da9e47c605de1d536a7a08cd561b2d4a99b35e359baf49d95d4bc98f77
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

This PDF document employs a game hack lure to trick users into visiting a malicious URL. The ML classifier strongly indicates maliciousness, and the embedded URL points to a site offering 'coin master village cost game hack'. While no scripts were explicitly extracted, the PDF structure and embedded links suggest it's designed to exploit user interest in game cheats to redirect them to potentially harmful content.

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/coin-master-village-cost-game-hack PDF link annotation
    • https://7gking.tw/upload/files/coin-master-village-cost_GM406889139.pdfIn PDF document text
    • https://7gking.tw/upload/files/free-promo-codes-roblox-february-2021_GM431946152.pdfIn PDF document text
    • https://7gking.tw/upload/files/how-to-hack-someones-account-through-team-create-roblox_GM431946152.pdfIn PDF document text
    • https://7gking.tw/upload/files/how-to-get-free-robux-no-skams_GM431946152.pdfIn PDF document text
    • https://7gking.tw/upload/files/how-to-get-free-robux-without-human-verification_GM431946152.pdfIn PDF document text
    • https://7gking.tw/upload/files/is-tiktok-free-app_GM835599320.pdfIn PDF document text
    • https://7gking.tw/upload/files/how-do-we-get-free-robux_GM431946152.pdfIn PDF document text
    • https://7gking.tw/upload/files/roblox-robuxfor-free_GM431946152.pdfIn PDF document text
    • https://7gking.tw/upload/files/free-coins-and-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • https://7gking.tw/upload/files/i-cant-get-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • https://7gking.tw/upload/files/how-to-hack-roblox-and-get-free-robux-2021_GM431946152.pdfIn PDF document text
    • https://7gking.tw/upload/files/coin-master-free-spins-hack_GM406889139.pdfIn PDF document text
    • https://7gking.tw/upload/files/games-on-roblox-that-give-you-free-robux_GM431946152.pdfIn PDF document text
    • https://7gking.tw/upload/files/coin-master-free-spins-deutsch-download-ios-link_GM406889139.pdfIn PDF document text
    • https://7gking.tw/upload/files/how-to-get-free-robux-fake-card_GM431946152.pdfIn PDF document text
    • https://7gking.tw/upload/files/free-roblox-toy-codes-unused_GM431946152.pdfIn PDF document text
    • https://7gking.tw/upload/files/most-popular-roblox-hack-client_GM431946152.pdfIn PDF document text
    • https://7gking.tw/upload/files/free-robux-number_GM431946152.pdfIn PDF document text
    • https://7gking.tw/upload/files/coin-master-free-spins-twitter_GM406889139.pdfIn PDF document text
    • https://7gking.tw/upload/files/roblox-pet-simulator-hack_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
stream_002_off00002f0c.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x2F0C 23060 bytes
SHA-256: 4fb7bc22015bf103b500db199e7469326735a951c304c35c06f47e56fdcdcb60
font_01_sfnt_off000062d9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x62D9 18044 bytes
SHA-256: b488c7aa93a7282600252f1c18b160acf3bdf236873997f00b2a69c8057441f1

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