Malicious PDF — malware analysis report

Static analysis result for SHA-256 225ccfe7f26345b3…

MALICIOUS

PDF

35.5 KB Created: 2021-06-22 06:25:57 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 15f8678615920dbd0768e2e9b1d593e5 SHA-1: 6181d57e989b2a4488d84ad8b0ebe0c6a444c1c6 SHA-256: 225ccfe7f26345b3c364b6ea0b7ecf30d797c9644a6846ae411fb9f04b2d253a
82 Risk Score

Malware Insights

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

This PDF document employs a lure related to game hacks and generators, specifically mentioning Roblox. The primary heuristic indicates it links to a redirector designed for such scams. The document body, though partially garbled, contains URLs that reinforce this theme. The embedded URLs and the 'PDF_GAME_HACK_REDIRECT_LURE' heuristic strongly suggest the intent is to drive users to potentially malicious external sites.

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/simon-says-hacks-roblox-2021-game-hack PDF link annotation
    • http://collectionsuncovered.com/media/storage/editor/files/coin-master-32-hack-apk-download_GM406889139.pdfIn PDF document text
    • http://collectionsuncovered.com/media/storage/editor/files/roblox-adopt-me-free-pets_GM431946152.pdfIn PDF document text
    • http://collectionsuncovered.com/media/storage/editor/files/promo-codes-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://collectionsuncovered.com/media/storage/editor/files/how-do-you-speed-hack-on-roblox_GM431946152.pdfIn PDF document text
    • http://collectionsuncovered.com/media/storage/editor/files/roblox-system_GM431946152.pdfIn PDF document text
    • http://collectionsuncovered.com/media/storage/editor/files/get-roblox-items-free-working-2021_GM431946152.pdfIn PDF document text
    • http://collectionsuncovered.com/media/storage/editor/files/minecraft-for-macbook-free_GM479516143.pdfIn PDF document text
    • http://collectionsuncovered.com/media/storage/editor/files/free-robux-kid-friendly-no-human-verification_GM431946152.pdfIn PDF document text
    • http://collectionsuncovered.com/media/storage/editor/files/roblox-free-printables_GM431946152.pdfIn PDF document text
    • http://collectionsuncovered.com/media/storage/editor/files/pokemon-go-free-game_GM1094591345.pdfIn PDF document text
    • http://collectionsuncovered.com/media/storage/editor/files/free-robux-without-downloading-anything_GM431946152.pdfIn PDF document text
    • http://collectionsuncovered.com/media/storage/editor/files/get-free-robux-no-verification_GM431946152.pdfIn PDF document text
    • http://collectionsuncovered.com/media/storage/editor/files/free-robux-apk_GM431946152.pdfIn PDF document text
    • http://collectionsuncovered.com/media/storage/editor/files/how-to-hack-roblox-for-robux_GM431946152.pdfIn PDF document text
    • http://collectionsuncovered.com/media/storage/editor/files/roblox-com-games-referrer-roblox-player_GM431946152.pdfIn PDF document text
    • http://collectionsuncovered.com/media/storage/editor/files/robuxfree-con_GM431946152.pdfIn PDF document text
    • http://collectionsuncovered.com/media/storage/editor/files/www-bandicam-com-free-robux_GM431946152.pdfIn PDF document text
    • http://collectionsuncovered.com/media/storage/editor/files/real-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://collectionsuncovered.com/media/storage/editor/files/coin-master-spin-cheat_GM406889139.pdfIn PDF document text
    • http://collectionsuncovered.com/media/storage/editor/files/aristois-minecraft-hack_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
font_00_sfnt_off000032b8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x32B8 22272 bytes
SHA-256: 63725e501744f17aaec39f48a811e5cc5d6d73b67cf9c2d7b96455f81f7be955
font_01_sfnt_off000063f7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x63F7 19620 bytes
SHA-256: 22ba0ab3c3e3625dae29d6c3729be7345b30c85cf8458c7953e2905648df63e7

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