Malicious PDF — malware analysis report

Static analysis result for SHA-256 94cf7a7d52b7aa2b…

MALICIOUS

PDF

34.8 KB Created: 2021-06-18 17:13:46 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-17
MD5: 9935c29dc2d337dff8a6527b872982c7 SHA-1: fde25508d1ef77b993f47eb4be06bf52eadd62f4 SHA-256: 94cf7a7d52b7aa2b0f7c4d850c1b9a1f6c10e01b212301efb32517d02eef0e77
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a prominent link to a 'free generator / game hack' lure, which is a common social engineering tactic to trick users into downloading malware or visiting malicious sites. The ML classifier strongly supports the malicious verdict. The embedded URL http://netcdn.co/app/431946152/inject-hack-to-get-free-robux-game-hack is a primary indicator of the malicious destination.

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.co/app/431946152/inject-hack-to-get-free-robux-game-hack PDF link annotation
    • https://ambasador.md/ckfinder/userfiles/files/how-to-get-free-faces-promocodes-on-roblox_GM431946152.pdfIn PDF document text
    • https://ambasador.md/ckfinder/userfiles/files/coin-master-daily-free-spins-and-coins-2021_GM406889139.pdfIn PDF document text
    • https://ambasador.md/ckfinder/userfiles/files/roblox-group-free-robux_GM431946152.pdfIn PDF document text
    • https://ambasador.md/ckfinder/userfiles/files/how-to-get-free-robux-without-verification_GM431946152.pdfIn PDF document text
    • https://ambasador.md/ckfinder/userfiles/files/how-to-use-scripts-in-roblox-hack_GM431946152.pdfIn PDF document text
    • https://ambasador.md/ckfinder/userfiles/files/roblox-free-clothes-hack_GM431946152.pdfIn PDF document text
    • https://ambasador.md/ckfinder/userfiles/files/robux-hacks-2021_GM431946152.pdfIn PDF document text
    • https://ambasador.md/ckfinder/userfiles/files/roblox-safe-hacks-download_GM431946152.pdfIn PDF document text
    • https://ambasador.md/ckfinder/userfiles/files/funbloxxyz-free-robux_GM431946152.pdfIn PDF document text
    • https://ambasador.md/ckfinder/userfiles/files/how-to-get-free-spins-on-coin-master-android_GM406889139.pdfIn PDF document text
    • https://ambasador.md/ckfinder/userfiles/files/working-cheat-engine-bybass-for-roblox-2021_GM431946152.pdfIn PDF document text
    • https://ambasador.md/ckfinder/userfiles/files/free-robux-generator_GM431946152.pdfIn PDF document text
    • https://ambasador.md/ckfinder/userfiles/files/free-robux-2021-no-verification_GM431946152.pdfIn PDF document text
    • https://ambasador.md/ckfinder/userfiles/files/free-robux-without-verify_GM431946152.pdfIn PDF document text
    • https://ambasador.md/ckfinder/userfiles/files/get-free-spins-coin-master-2021_GM406889139.pdfIn PDF document text
    • https://ambasador.md/ckfinder/userfiles/files/how-to-get-free-tiktok-followers-without-human-verification_GM835599320.pdfIn PDF document text
    • https://ambasador.md/ckfinder/userfiles/files/coin-master-daily-free-spins-link-app_GM406889139.pdfIn PDF document text
    • https://ambasador.md/ckfinder/userfiles/files/coin-master-hack-spins_GM406889139.pdfIn PDF document text
    • https://ambasador.md/ckfinder/userfiles/files/how-do-you-get-free-robux-without-paying_GM431946152.pdfIn PDF document text
    • https://ambasador.md/ckfinder/userfiles/files/robux-generator-no-human-verification-or-survey_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_off000031b7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x31B7 22052 bytes
SHA-256: 1fc170951c2a9fb0c3fb42a2f2cc1d8a679804db444861068496a1ebfb94f85f
font_01_sfnt_off0000629d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x629D 19176 bytes
SHA-256: 23b277fbc83fb8f577f828d51f97e12c768937fbe88a7143d3e57a97249f160b

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