Malicious PDF — malware analysis report

Static analysis result for SHA-256 7626e93253b0a153…

MALICIOUS

PDF

33.6 KB Created: 2021-07-05 10:43:18 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-22
MD5: fac5b566865c245858c2788f0842e5cc SHA-1: 0e57e6203db064f9977ce59c0e6a27c5f918d01d SHA-256: 7626e93253b0a1531dc5c1726e4e73aa115ca32fbc7f3c47ba875787ab83050d
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.tw/app/431946152/roblox-re-game-hack PDF link annotation
    • http://library.atim.ac.id/repository/can-you-be-hacked-by-an-id-on-roblox_GM431946152.pdfIn PDF document text
    • http://library.atim.ac.id/repository/free-key-cards-roblox_GM431946152.pdfIn PDF document text
    • http://library.atim.ac.id/repository/free-robux-cheats-roblox_GM431946152.pdfIn PDF document text
    • http://library.atim.ac.id/repository/minecraft-fly-hack_GM479516143.pdfIn PDF document text
    • http://library.atim.ac.id/repository/how-to-get-free-spins-on-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://library.atim.ac.id/repository/coin-master-hack-app_GM406889139.pdfIn PDF document text
    • http://library.atim.ac.id/repository/roblox-hack-me-com_GM431946152.pdfIn PDF document text
    • http://library.atim.ac.id/repository/roblox-shirt-template-size-free-shipping_GM431946152.pdfIn PDF document text
    • http://library.atim.ac.id/repository/roblox-game-pass-hack-2021_GM431946152.pdfIn PDF document text
    • http://library.atim.ac.id/repository/roblox-free-gamepass-game_GM431946152.pdfIn PDF document text
    • http://library.atim.ac.id/repository/roblox-the-lords-of-nomrial-hack_GM431946152.pdfIn PDF document text
    • http://library.atim.ac.id/repository/free-roblox-executor-2021-stable-no-crash_GM431946152.pdfIn PDF document text
    • http://library.atim.ac.id/repository/free-robux-hack-pastebin-2021_GM431946152.pdfIn PDF document text
    • http://library.atim.ac.id/repository/how-to-find-free-roblox-groups_GM431946152.pdfIn PDF document text
    • http://library.atim.ac.id/repository/free-robux-addon_GM431946152.pdfIn PDF document text
    • http://library.atim.ac.id/repository/free-robux-instantly-no-verification_GM431946152.pdfIn PDF document text
    • http://library.atim.ac.id/repository/free-robux-no-human-verification-2021-ios_GM431946152.pdfIn PDF document text
    • http://library.atim.ac.id/repository/free4mobile-info-free-robux_GM431946152.pdfIn PDF document text
    • http://library.atim.ac.id/repository/roblox-hack-kick-gui-2021-work-in-other-game_GM431946152.pdfIn PDF document text
    • http://library.atim.ac.id/repository/free-roblox-hack_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_off00002d8a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2D8A 22964 bytes
SHA-256: 259d8d0c39b63fa7f013a6c703847d50f1bdb651148289a3842b3f130fa1a362
font_01_sfnt_off00005ff1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5FF1 18484 bytes
SHA-256: 9f3d5f952a5a8565a36a95a9616e220af72e779ac4925ec2f8c0411011cafdf3

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