Malicious PDF — malware analysis report

Static analysis result for SHA-256 9d80a8d8fb774e61…

MALICIOUS

PDF

34.4 KB Created: 2021-06-28 03:51:09 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-16
MD5: 2158cb9653d9b3278cc0ac23bf3d88e0 SHA-1: f47baa8b3139f4d250f1d9edf967fbe753d4d41e SHA-256: 9d80a8d8fb774e61bd89d2ae1c384495cec344e2e23dcc4a0c44457f96388a4d
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains numerous URLs pointing to sites offering 'free animations on Roblox' and similar game-related cheats. The presence of a heuristic firing for 'SE_LOLBIN_RUN_COMMAND' suggests the document may attempt to execute commands, likely to download and run a second-stage payload. The ML classifier also strongly flagged this PDF as malicious.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 4

  • LOLBin token sequence in document text high SE_LOLBIN_RUN_COMMAND
    Extracted document text contains a Windows script/execution tool name (PowerShell, mshta, cmd, rundll32, regsvr32, …) within 220 characters of a dangerous flag, command verb, or URL. This is a visible 'run this' instruction in HTML/PDF/RTF lure bodies, or — in macro-laden Office files — the macro's own string-pool entries appearing adjacent in extracted text.
  • 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-get-free-animations-on-roblox-game-hack PDF link annotation
    • http://suaedy-library.net/repository/how-to-get-free-food-on-coin-master_GM406889139.pdfIn PDF document text
    • http://suaedy-library.net/repository/robux-free-legit_GM431946152.pdfIn PDF document text
    • http://suaedy-library.net/repository/best-discord-server-for-free-robux_GM431946152.pdfIn PDF document text
    • http://suaedy-library.net/repository/roblox-rape-hack_GM431946152.pdfIn PDF document text
    • http://suaedy-library.net/repository/roblox-gear-hack_GM431946152.pdfIn PDF document text
    • http://suaedy-library.net/repository/hackear-coin-master-sin-root_GM406889139.pdfIn PDF document text
    • http://suaedy-library.net/repository/free-robux-just-enter-username-no-verification_GM431946152.pdfIn PDF document text
    • http://suaedy-library.net/repository/moonactive-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://suaedy-library.net/repository/how-to-get-free-admin-on-any-roblox-game-2021_GM431946152.pdfIn PDF document text
    • http://suaedy-library.net/repository/roblox-system_GM431946152.pdfIn PDF document text
    • http://suaedy-library.net/repository/robloxbux-us-generator_GM431946152.pdfIn PDF document text
    • http://suaedy-library.net/repository/fondo-free-robux_GM431946152.pdfIn PDF document text
    • http://suaedy-library.net/repository/how-to-get-spins-on-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://suaedy-library.net/repository/freecoins_GM406889139.pdfIn PDF document text
    • http://suaedy-library.net/repository/minecraft-free-download-chromebook_GM479516143.pdfIn PDF document text
    • http://suaedy-library.net/repository/whats-robux_GM431946152.pdfIn PDF document text
    • http://suaedy-library.net/repository/free-spin-gratis-coin-master_GM406889139.pdfIn PDF document text
    • http://suaedy-library.net/repository/can-you-give-me-free-robux_GM431946152.pdfIn PDF document text
    • http://suaedy-library.net/repository/hack-coin-master-spin-android_GM406889139.pdfIn PDF document text
    • http://suaedy-library.net/repository/games-that-give-you-free-robux_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_off00002f22.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2F22 22324 bytes
SHA-256: f36af5bc61661f468cb5244bb91f679c9fa33e5a9a952b61536bed08bd8bf813
font_01_sfnt_off000060cb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x60CB 19300 bytes
SHA-256: fddc73c7f75c10fb788d5eb7b942b0cd3983966c84dd7f98fe8b97d875ade808

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