Malicious PDF — malware analysis report

Static analysis result for SHA-256 19a4a2588b3f5bfd…

MALICIOUS

PDF

33.6 KB Created: 2021-07-03 20:01:43 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 0662516de5388ff2186dc2129961dcd7 SHA-1: dacc534fe5456d2ce93e4ef7ba68a8009b171082 SHA-256: 19a4a2588b3f5bfda6e890cf85f0937ee8e68028c9c053ed108547b61ba75b72
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/easy-robux-generator-game-hack PDF link annotation
    • http://sellitafrica.com/media/storage/editor/files/what-games-give-you-free-robux-no-scams_GM431946152.pdfIn PDF document text
    • http://sellitafrica.com/media/storage/editor/files/how-to-get-verified-on-tiktok-for-free_GM835599320.pdfIn PDF document text
    • http://sellitafrica.com/media/storage/editor/files/games-in-roblox-that-give-you-robux_GM431946152.pdfIn PDF document text
    • http://sellitafrica.com/media/storage/editor/files/roblox-hacked-version_GM431946152.pdfIn PDF document text
    • http://sellitafrica.com/media/storage/editor/files/how-to-hack-a-minecraft-server_GM479516143.pdfIn PDF document text
    • http://sellitafrica.com/media/storage/editor/files/roblox-gang_GM431946152.pdfIn PDF document text
    • http://sellitafrica.com/media/storage/editor/files/coin-master-70-spin-link-2021_GM406889139.pdfIn PDF document text
    • http://sellitafrica.com/media/storage/editor/files/spin-hack-for-coin-master_GM406889139.pdfIn PDF document text
    • http://sellitafrica.com/media/storage/editor/files/free-robux-in-1-sec_GM431946152.pdfIn PDF document text
    • http://sellitafrica.com/media/storage/editor/files/free-coins-and-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://sellitafrica.com/media/storage/editor/files/how-to-get-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://sellitafrica.com/media/storage/editor/files/free-robux-no-verification-2021-android_GM431946152.pdfIn PDF document text
    • http://sellitafrica.com/media/storage/editor/files/how-to-download-minecraft-for-free-on-pc_GM479516143.pdfIn PDF document text
    • http://sellitafrica.com/media/storage/editor/files/roblox-free-rubox_GM431946152.pdfIn PDF document text
    • http://sellitafrica.com/media/storage/editor/files/how-do-we-get-free-robux_GM431946152.pdfIn PDF document text
    • http://sellitafrica.com/media/storage/editor/files/free-robux-hack-meep-city_GM431946152.pdfIn PDF document text
    • http://sellitafrica.com/media/storage/editor/files/free-minecraft-codes-2021_GM479516143.pdfIn PDF document text
    • http://sellitafrica.com/media/storage/editor/files/hack-somebody-on-roblox_GM431946152.pdfIn PDF document text
    • http://sellitafrica.com/media/storage/editor/files/tp-hacks-script-roblox-pastebin_GM431946152.pdfIn PDF document text
    • http://sellitafrica.com/media/storage/editor/files/roblox-elemental-battleground-hack-script_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_off00002ea5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2EA5 21868 bytes
SHA-256: dc0371c5a10c19d9a44f927cf9763be177a4a80361e3cbaaee490ef837eabb4a
font_01_sfnt_off00005ec4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5EC4 18836 bytes
SHA-256: 7ac84f08d6f3d8b5a5d053f3efaa940b63c7ffadd11ba48b4da121a10aff55c5

Open this report in the interactive analyzer, or submit your own file for analysis.