Malicious PDF — malware analysis report

Static analysis result for SHA-256 fdac4e85e0844a5b…

MALICIOUS

PDF

35.6 KB Created: 2021-07-01 13:55:54 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-17
MD5: 15eebc529b0f72a498a16c9e56862d73 SHA-1: 69e265ba9e98ef6e012fa7cb66cc210302fcd477 SHA-256: fdac4e85e0844a5b87e69b20dca0f107c79a314ed531c0370ea0ba53c4c87dc3
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a lure related to game hacking, specifically for Roblox, and directs users to a URL that promises 'how to hack'. This URL, http://netcdn.co/app/431946152/how-to-hack-someones-account-in-roblox-easy-game-hack, is identified as a high-risk indicator. The presence of embedded URLs and the 'GAME_HACK_REDIRECT_LURE' heuristic strongly suggest a social engineering attack aimed at tricking users into visiting a potentially malicious site.

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/how-to-hack-someones-account-in-roblox-easy-game-hack PDF link annotation
    • http://perpustakaan.stikom-ima.ac.id/slims2/repository/cheat-engine-on-roblox-2021_GM431946152.pdfIn PDF document text
    • http://perpustakaan.stikom-ima.ac.id/slims2/repository/coin-master-facebook-page_GM406889139.pdfIn PDF document text
    • http://perpustakaan.stikom-ima.ac.id/slims2/repository/invisible-pants-roblox-free_GM431946152.pdfIn PDF document text
    • http://perpustakaan.stikom-ima.ac.id/slims2/repository/insane-how-to-get-free-robux-on-roblox_GM431946152.pdfIn PDF document text
    • http://perpustakaan.stikom-ima.ac.id/slims2/repository/my-roblox-avatar_GM431946152.pdfIn PDF document text
    • http://perpustakaan.stikom-ima.ac.id/slims2/repository/boku-no-roblox-hack_GM431946152.pdfIn PDF document text
    • http://perpustakaan.stikom-ima.ac.id/slims2/repository/how-to-bypass-cheat-engine-roblox_GM431946152.pdfIn PDF document text
    • http://perpustakaan.stikom-ima.ac.id/slims2/repository/free-coin-master-glitches_GM406889139.pdfIn PDF document text
    • http://perpustakaan.stikom-ima.ac.id/slims2/repository/how-to-hack-and-get-free-robux_GM431946152.pdfIn PDF document text
    • http://perpustakaan.stikom-ima.ac.id/slims2/repository/hack-pour-roblox_GM431946152.pdfIn PDF document text
    • http://perpustakaan.stikom-ima.ac.id/slims2/repository/infinity-jump-roblox-free_GM431946152.pdfIn PDF document text
    • http://perpustakaan.stikom-ima.ac.id/slims2/repository/coin-master-apk-hack_GM406889139.pdfIn PDF document text
    • http://perpustakaan.stikom-ima.ac.id/slims2/repository/free-bot-followers-roblox_GM431946152.pdfIn PDF document text
    • http://perpustakaan.stikom-ima.ac.id/slims2/repository/camisetas-de-hacker-de-roblox_GM431946152.pdfIn PDF document text
    • http://perpustakaan.stikom-ima.ac.id/slims2/repository/coin-master-hacks-no-downloading_GM406889139.pdfIn PDF document text
    • http://perpustakaan.stikom-ima.ac.id/slims2/repository/hacks-for-coin-master_GM406889139.pdfIn PDF document text
    • http://perpustakaan.stikom-ima.ac.id/slims2/repository/how-to-get-free-robux-easy-no-download_GM431946152.pdfIn PDF document text
    • http://perpustakaan.stikom-ima.ac.id/slims2/repository/roblox-games-com-free_GM431946152.pdfIn PDF document text
    • http://perpustakaan.stikom-ima.ac.id/slims2/repository/i-just-got-free-robux-from-roblox_GM431946152.pdfIn PDF document text
    • http://perpustakaan.stikom-ima.ac.id/slims2/repository/coin-master-generator-hack_GM406889139.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_off000032a3.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x32A3 22448 bytes
SHA-256: 7020537c604488baa1af072ca6aadea70f55f01137983c190c918c86c7302546
font_01_sfnt_off000064ba.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x64BA 19504 bytes
SHA-256: 1d50979cecde5b3a0e5d14b74034cf680f05e83cac53c1732e6ce6a2de587999

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