Malicious PDF — malware analysis report

Static analysis result for SHA-256 d30cb7332d538370…

MALICIOUS

PDF

35.0 KB Created: 2021-06-26 18:36:41 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 6c6e5d5225bebe2568bc5ee10d44dbef SHA-1: 91f88aa50ca9d207fc57aad305cc35627714a9a8 SHA-256: d30cb7332d538370a730ced7ebe3de4eaf691f14a0c025e499f868e978e87222
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple embedded URLs and a prominent link to 'netcdn.co' which is flagged as a game hack redirector. The document body text also contains keywords related to game hacks and free generators, indicating a lure to download potentially malicious content. The ML classifier strongly flagged this PDF as malicious.

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-phantom-forces-hack-lua-download-game-hack PDF link annotation
    • https://www.mtsn1siak.com/__statics/gudangsoal/files/roblox-free-hate_GM431946152.pdfIn PDF document text
    • https://mtsn1siak.com/__statics/gudangsoal/files/coin-master-free-spins-ios-2021_GM406889139.pdfIn PDF document text
    • https://mtsn1siak.com/__statics/gudangsoal/files/coin-master-daily-rewards_GM406889139.pdfIn PDF document text
    • https://mtsn1siak.com/__statics/gudangsoal/files/robux-free-com_GM431946152.pdfIn PDF document text
    • https://mtsn1siak.com/__statics/gudangsoal/files/how-to-get-free-robux-without-any-verification_GM431946152.pdfIn PDF document text
    • https://mtsn1siak.com/__statics/gudangsoal/files/tiktok-free-blue-tick_GM835599320.pdfIn PDF document text
    • https://mtsn1siak.com/__statics/gudangsoal/files/coin-master-extra-spins_GM406889139.pdfIn PDF document text
    • https://mtsn1siak.com/__statics/gudangsoal/files/jailbreak-script_GM431946152.pdfIn PDF document text
    • https://mtsn1siak.com/__statics/gudangsoal/files/cm-free-spins-and-coins_GM406889139.pdfIn PDF document text
    • https://mtsn1siak.com/__statics/gudangsoal/files/free-spin-in-coin-master_GM406889139.pdfIn PDF document text
    • https://mtsn1siak.com/__statics/gudangsoal/files/minecraft-mod-updater_GM479516143.pdfIn PDF document text
    • https://mtsn1siak.com/__statics/gudangsoal/files/robux-free-2021_GM431946152.pdfIn PDF document text
    • https://mtsn1siak.com/__statics/gudangsoal/files/links-for-free-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • https://mtsn1siak.com/__statics/gudangsoal/files/roblox-dashing-simulator-hack_GM431946152.pdfIn PDF document text
    • https://www.mtsn1siak.com/__statics/gudangsoal/files/roblox-browser-free_GM431946152.pdfIn PDF document text
    • https://mtsn1siak.com/__statics/gudangsoal/files/roblox-generator-no-verification_GM431946152.pdfIn PDF document text
    • https://mtsn1siak.com/__statics/gudangsoal/files/coin-master-hack-apk-july-29_GM406889139.pdfIn PDF document text
    • https://mtsn1siak.com/__statics/gudangsoal/files/mcpe-master-hack-unlimited-coins-download_GM406889139.pdfIn PDF document text
    • https://mtsn1siak.com/__statics/gudangsoal/files/roblox-arsenal-hack_GM431946152.pdfIn PDF document text
    • https://www.mtsn1siak.com/__statics/gudangsoal/files/how-to-get-free-robux-bc-only_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_off00002f8f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2F8F 22228 bytes
SHA-256: 96c28c28d69b6d6ff7ab98593ef4af7396af29e8d68959eae941c9b1ab086f93
font_01_sfnt_off000060da.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x60DA 20148 bytes
SHA-256: 53588c4aa4d6181bb16ac26eac5e0ed9245dd103805a38b58f5bb15b9ee8e168

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