Malicious PDF — malware analysis report

Static analysis result for SHA-256 a348b483e62aa7d2…

MALICIOUS

PDF

36.4 KB Created: 2021-06-29 22:42:54 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-18
MD5: 578598738919d1cbdcc27dd12a38cb4d SHA-1: a9eb678ab44d0c1b80027755646e02388fb046db SHA-256: a348b483e62aa7d267e31781f74d8e94900285fbbbccb92fa333db97bf634796
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document was flagged as malicious by an ML classifier. The file routes users through malicious redirector infrastructure and presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.

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/free-outfit-from-roblox-game-hack PDF link annotation
    • http://slim.sisminkada.net/repository/synapse-level-7-exploit-crack-download-free-roblox_GM431946152.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/prison-life-roblox-hacks_GM431946152.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/roblox-cheat-source-leaked_GM431946152.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/free-spin-coin_GM406889139.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/free-roblox-keyboard-clicker-download_GM431946152.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/coin-master-free-spin-daily-link_GM406889139.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/mcpe-free-download_GM479516143.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/pokemon-go-free-643_GM1094591345.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/how-to-hack-a-roblox-account-2021_GM431946152.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/free-links-for-coin-master_GM406889139.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/free-robux-pls-i-need-some_GM431946152.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/free-robux-generator-without-human-verification_GM431946152.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/how-to-hack-roblox-money-with-cheat-engine-63_GM431946152.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/cheat-to-have-highest-rank-roblox_GM431946152.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/do-the-obby-for-free-robux_GM431946152.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/games-for-robux_GM431946152.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/minecraft-free-minecraft_GM479516143.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/how-to-hack-robux-for-free_GM431946152.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/if-you-delete-minecraft-can-you-redownload-it-for-free_GM479516143.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/free-robux-hack-2021-glitch_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_off00003550.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3550 22988 bytes
SHA-256: 3af0cc7ceda1263865658894e039644d61ed93ba4d48064d6f9d9a6887dcf56d
font_01_sfnt_off000068f9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x68F9 19276 bytes
SHA-256: d9a7e8efd140c3432e4efa0ef7f37c2cf10d8b81ae7de63ad3f2c8598d4d5042

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