Malicious PDF — malware analysis report

Static analysis result for SHA-256 ee6651e004b7a59f…

MALICIOUS

PDF

33.3 KB Created: 2021-06-29 18:20:22 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-17
MD5: 7afc0d9db28b0ecb28a295d523e50a5f SHA-1: 4a8df9e8c3f0576c347cb51bc94b44aaae4de76c SHA-256: ee6651e004b7a59f05d14852051a833a092290dc79bb8bb7a059207be1621376
122 Risk Score

Malware Insights

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

The PDF document uses a lure related to 'Roblox Descargar Hack' and 'free generator' to entice users to click on embedded links. The ML classifier and heuristics indicate malicious intent, with specific rules flagging the game hack redirect lure and the presence of command-line execution tokens. The document body contains numerous URLs pointing to potential malware downloads disguised as game cheats or generators.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9824

Heuristics 5

  • 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.
  • 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/roblox-descargar-hack-game-hack PDF link annotation
    • http://perpus.fisip.unnur.ac.id/repository/free-robux-generator-for-roblox-2021_GM431946152.pdfIn PDF document text
    • http://perpus.fisip.unnur.ac.id/repository/roblox-admin-hack-pastebin_GM431946152.pdfIn PDF document text
    • http://perpus.fisip.unnur.ac.id/repository/roblox-heroes-online-free_GM431946152.pdfIn PDF document text
    • http://perpus.fisip.unnur.ac.id/repository/roblox-one-piece-rampage-script-hack_GM431946152.pdfIn PDF document text
    • http://perpus.fisip.unnur.ac.id/repository/daily-coin-master-free-spin-link-facebook_GM406889139.pdfIn PDF document text
    • http://perpus.fisip.unnur.ac.id/repository/roblox-hack-with-cmd_GM431946152.pdfIn PDF document text
    • http://perpus.fisip.unnur.ac.id/repository/free-roblox-clothes-no-glitch_GM431946152.pdfIn PDF document text
    • http://perpus.fisip.unnur.ac.id/repository/roblox-toy-codes-free_GM431946152.pdfIn macro / runtime command snippet
    • http://perpus.fisip.unnur.ac.id/repository/free-download-game-roblox-full-version_GM431946152.pdfIn PDF document text
    • http://perpus.fisip.unnur.ac.id/repository/robux-hack-no-human-verification-2021_GM431946152.pdfIn PDF document text
    • http://perpus.fisip.unnur.ac.id/repository/how-to-draw-anime-on-free-draw-roblox_GM431946152.pdfIn PDF document text
    • http://perpus.fisip.unnur.ac.id/repository/free-robux-no-points_GM431946152.pdfIn PDF document text
    • http://perpus.fisip.unnur.ac.id/repository/how-to-ave-a-code-for-robux-free_GM431946152.pdfIn PDF document text
    • http://perpus.fisip.unnur.ac.id/repository/free-robux-just-for-singing-up_GM431946152.pdfIn PDF document text
    • http://perpus.fisip.unnur.ac.id/repository/red-shirt-free-roblox_GM431946152.pdfIn PDF document text
    • http://perpus.fisip.unnur.ac.id/repository/free-roblox-sqript-injecter_GM431946152.pdfIn PDF document text
    • http://perpus.fisip.unnur.ac.id/repository/free-antlers-roblox_GM431946152.pdfIn PDF document text
    • http://perpus.fisip.unnur.ac.id/repository/how-do-u-get-free-robux_GM431946152.pdfIn PDF document text
    • http://perpus.fisip.unnur.ac.id/repository/coin-master-hacks-no-downloading_GM406889139.pdfIn PDF document text
    • http://perpus.fisip.unnur.ac.id/repository/hack-adopt-me-roblox-2021-project-alpha-300_GM431946152.pdfIn PDF document text
    • http://perpus.fisip.unnur.ac.id/repositoIn macro / runtime command snippet
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002a98.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2A98 22876 bytes
SHA-256: 6c2dbd2305ff4586f415b4b8286ef33c26abb35c06aa69b8c0dc1c95f2bd6eec
font_01_sfnt_off00005e08.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5E08 18824 bytes
SHA-256: e6ac287cc369149020ef6df54125c99c538426c7c1c2bb42cae557a1708b2465

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