Malicious PDF — malware analysis report

Static analysis result for SHA-256 4346d20b6f2826c6…

MALICIOUS

PDF

44.5 KB Created: 2021-06-08 12:38:59 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: 93ba510ff40ba89d77828e7ffa95b7da SHA-1: 6d46f962ebdf3ef8c3d741222e9915abc975209d SHA-256: 4346d20b6f2826c6c5645b30ddf0c56a14d725e2c8b57fc30e59ce539fccde1a
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a high-severity heuristic firing indicating it links to a 'free generator / game hack' lure. The embedded URL, https://netcdn.tw/app/431946152/hacks-de-roblox-sin-virus-game-hack, directly supports this finding. The document body also contains this URL, reinforcing the malicious intent to redirect users to a potentially harmful site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9865

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 https://netcdn.tw/app/431946152/hacks-de-roblox-sin-virus-game-hack PDF link annotation
    • http://italianconnectionsleaford.co.uk/images/minecraft-realms-free_GM479516143.pdfIn PDF document text
    • http://italianconnectionsleaford.co.uk/images/free-minecraft-texture-packs_GM479516143.pdfIn PDF document text
    • http://italianconnectionsleaford.co.uk/images/free-robux-not-a-scam_GM431946152.pdfIn PDF document text
    • http://italianconnectionsleaford.co.uk/images/minecraft-maps-pe-free-download_GM479516143.pdfIn PDF document text
    • http://italianconnectionsleaford.co.uk/images/minecraft-hax-download-no-virus_GM479516143.pdfIn PDF document text
    • http://italianconnectionsleaford.co.uk/images/coin-master-free-coins-link_GM406889139.pdfIn PDF document text
    • http://italianconnectionsleaford.co.uk/images/free-robux-apk_GM431946152.pdfIn PDF document text
    • http://italianconnectionsleaford.co.uk/images/i-got-hacked-on-roblox_GM431946152.pdfIn PDF document text
    • http://italianconnectionsleaford.co.uk/images/free-minecraft-printables-food-labels_GM479516143.pdfIn PDF document text
    • http://italianconnectionsleaford.co.uk/images/coin-master-daily-free-spins-blogspot_GM406889139.pdfIn PDF document text
    • http://italianconnectionsleaford.co.uk/images/master-coin-free-spin-daily_GM406889139.pdfIn PDF document text
    • http://italianconnectionsleaford.co.uk/images/how-many-villages-are-in-coin-master_GM406889139.pdfIn PDF document text
    • http://italianconnectionsleaford.co.uk/images/coin-master-free-stuff_GM406889139.pdfIn PDF document text
    • http://italianconnectionsleaford.co.uk/images/coin-master-hack-app-2021_GM406889139.pdfIn PDF document text
    • http://italianconnectionsleaford.co.uk/images/roblox-speed-hack_GM431946152.pdfIn PDF document text
    • http://italianconnectionsleaford.co.uk/images/free-robux-apps-that-work_GM431946152.pdfIn PDF document text
    • http://italianconnectionsleaford.co.uk/images/roblox-its-free_GM431946152.pdfIn PDF document text
    • http://italianconnectionsleaford.co.uk/images/hey-you-yes-you-do-you-want-free-unlimted-robux_GM431946152.pdfIn PDF document text
    • http://italianconnectionsleaford.co.uk/images/websites-for-robux_GM431946152.pdfIn PDF document text
    • http://italianconnectionsleaford.co.uk/images/minecraft-apk-free-download_GM479516143.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_004_off000051fb.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x51FB 24388 bytes
SHA-256: a463a8b10d824261a58b788ce4596755a5d699e9d80995709eaa940462a389e4
font_01_sfnt_off000089cc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x89CC 18744 bytes
SHA-256: 53843d7e4fa5f33dcd6dac960f861b28f072d863f7f112e09964cc385f059937

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