Malicious PDF — malware analysis report

Static analysis result for SHA-256 2eda15cf3a3ad7cf…

MALICIOUS

PDF

34.9 KB Created: 2021-07-03 13:04:36 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 74371a3e4ae245e4279f389bb744a20c SHA-1: 0e68212c0436dc0bf4652483e6f6ab5c193bfbca SHA-256: 2eda15cf3a3ad7cff909b8641cf1ac6a4107c9906fec443e1dcbcffbb5988764
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/get-free-robux-com-game-hack PDF link annotation
    • http://library.sdkmaterdei.sch.id/repository/como-descargar-roblox-hack-para-pc_GM431946152.pdfIn PDF document text
    • http://library.sdkmaterdei.sch.id/repository/how-to-make-a-pretty-roblox-girl-free_GM431946152.pdfIn PDF document text
    • http://library.sdkmaterdei.sch.id/repository/free-roblox-exploits-no-virus_GM431946152.pdfIn PDF document text
    • http://library.sdkmaterdei.sch.id/repository/roblox-yugioh-gx-world-cheats_GM431946152.pdfIn PDF document text
    • http://library.sdkmaterdei.sch.id/repository/install-roblox-hacked-version_GM431946152.pdfIn PDF document text
    • http://library.sdkmaterdei.sch.id/repository/free-robux-i-swear_GM431946152.pdfIn PDF document text
    • http://library.sdkmaterdei.sch.id/repository/how-to-hack-into-big-brother-roblox_GM431946152.pdfIn PDF document text
    • http://library.sdkmaterdei.sch.id/repository/free-minecraft-alt-accounts_GM479516143.pdfIn PDF document text
    • http://library.sdkmaterdei.sch.id/repository/minecraft-free-install_GM479516143.pdfIn PDF document text
    • http://library.sdkmaterdei.sch.id/repository/free-spins-and-coins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://library.sdkmaterdei.sch.id/repository/unpatchable-new-roblox-exploit-hack-skyline-stat-change_GM431946152.pdfIn PDF document text
    • http://library.sdkmaterdei.sch.id/repository/inquisitormaster-the-new-roblox-hacker-is-after-me_GM431946152.pdfIn PDF document text
    • http://library.sdkmaterdei.sch.id/repository/roblox-script-executor-free-download-2021_GM431946152.pdfIn PDF document text
    • http://library.sdkmaterdei.sch.id/repository/roblox-tower-defense-hacks_GM431946152.pdfIn PDF document text
    • http://library.sdkmaterdei.sch.id/repository/roblox-free-pants-catalog_GM431946152.pdfIn PDF document text
    • http://library.sdkmaterdei.sch.id/repository/hack-engine-on-roblox_GM431946152.pdfIn PDF document text
    • http://library.sdkmaterdei.sch.id/repository/how-to-get-free-robux-no-human-verification-2021-real_GM431946152.pdfIn PDF document text
    • http://library.sdkmaterdei.sch.id/repository/roblox-running-simulator-hack_GM431946152.pdfIn PDF document text
    • http://library.sdkmaterdei.sch.id/repository/free-coins-coin-master_GM406889139.pdfIn PDF document text
    • http://library.sdkmaterdei.sch.id/repository/roblox-command-prompt-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_off000030c4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x30C4 22628 bytes
SHA-256: 7ead072d2b04b9c5b77e440675616b979bbfe516eb430830097802aaed7bc026
font_01_sfnt_off00006361.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6361 19080 bytes
SHA-256: bd48df5b3587c62f460ac4547970d78652d76b982da8f06603591dccd4bca80f

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