Malicious PDF — malware analysis report

Static analysis result for SHA-256 999b6f4e8a2a65e8…

MALICIOUS

PDF

33.7 KB Created: 2021-07-03 16:08:16 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-18
MD5: b955293ca24a8a6347e8c567b629937b SHA-1: aae27644c1876c1cfb67361f3aefaa6cd710fcc7 SHA-256: 999b6f4e8a2a65e8b75e72fd35372a9ad2a1de29d99b97c80a676ff777d3c383
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/how-to-use-scripts-in-roblox-hack-game-hack PDF link annotation
    • https://aits.co.id/ckfinder/userfiles/files/mad-city-cheat-codes-season-2-roblox-website_GM431946152.pdfIn PDF document text
    • https://aits.co.id/ckfinder/userfiles/files/roblox-free-robux-website_GM431946152.pdfIn PDF document text
    • https://aits.co.id/ckfinder/userfiles/files/coin-master-free-spins-link-blogspot-2021_GM406889139.pdfIn PDF document text
    • https://aits.co.id/ckfinder/userfiles/files/2021-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • https://aits.co.id/ckfinder/userfiles/files/hack-coin-master-game-apk_GM406889139.pdfIn PDF document text
    • https://aits.co.id/ckfinder/userfiles/files/coin-master-attack-hack_GM406889139.pdfIn PDF document text
    • https://aits.co.id/ckfinder/userfiles/files/robux-free-c_GM431946152.pdfIn PDF document text
    • https://aits.co.id/ckfinder/userfiles/files/roblox-piano-hack_GM431946152.pdfIn PDF document text
    • https://aits.co.id/ckfinder/userfiles/files/free-minecraft-account-and-password_GM479516143.pdfIn PDF document text
    • https://aits.co.id/ckfinder/userfiles/files/roblox-cash-hack-script-pastebin-2021_GM431946152.pdfIn PDF document text
    • https://aits.co.id/ckfinder/userfiles/files/free-robux-legit_GM431946152.pdfIn PDF document text
    • https://aits.co.id/ckfinder/userfiles/files/assassin-roblox-free-exotic_GM431946152.pdfIn PDF document text
    • https://aits.co.id/ckfinder/userfiles/files/como-hackear-el-juego-coin-master-en-espaol_GM406889139.pdfIn PDF document text
    • https://aits.co.id/ckfinder/userfiles/files/how-do-you-install-minecraft-for-free_GM479516143.pdfIn PDF document text
    • https://aits.co.id/ckfinder/userfiles/files/free-robux-today_GM431946152.pdfIn PDF document text
    • https://aits.co.id/ckfinder/userfiles/files/roblox-how-to-hack-in-games_GM431946152.pdfIn PDF document text
    • https://aits.co.id/ckfinder/userfiles/files/roblox-login-hack_GM431946152.pdfIn PDF document text
    • https://aits.co.id/ckfinder/userfiles/files/blogspot-coin-master-spins_GM406889139.pdfIn PDF document text
    • https://aits.co.id/ckfinder/userfiles/files/master-coin-free-spin_GM406889139.pdfIn PDF document text
    • https://aits.co.id/ckfinder/userfiles/files/code-de-cheat-roblox-simulator-de-chiens_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
stream_002_off00002d74.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x2D74 22084 bytes
SHA-256: 99c2da1f0870ccb172dd218ef7255dc63eed65491ff0797eae70447e1c528f23
font_01_sfnt_off00005e19.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5E19 19220 bytes
SHA-256: a8bf9d06374e0db8ffccbebc60cb81def042f511a0a1c8beab4e32725b7b3d1b

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