Malicious PDF — malware analysis report

Static analysis result for SHA-256 5411094495d109a2…

MALICIOUS

PDF

35.2 KB Created: 2021-06-19 14:59:15 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-18
MD5: 451bbd6b8849f314855abfccb48c54e2 SHA-1: faf1fe2c592b4516722e0da74e403e6005fe17f2 SHA-256: 5411094495d109a23633f8a647f83db765ac06b11e9c15ae4fa099d845fa2a56
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a lure related to game hacks and free in-game currency, directing users to a suspicious URL. The presence of embedded URLs and the ML classifier's high confidence score indicate a malicious intent to redirect users to potentially harmful content. The document's content and structure strongly suggest a phishing or scam attempt.

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/roblox-high-school-how-to-get-free-gear-game-hack PDF link annotation
    • https://library.itn.ac.id/perpusitn/repository/free-coin-master-glitches_GM406889139.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/coin-master-hack-online-pc_GM406889139.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/hackaron-com-roblox-hack_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/new-roblox-promo-codes-unlimited-free-robux-2021_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/free-spin-generator-for-coin-master_GM406889139.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/earn-robux-today_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/hack-coin-master-without-root_GM406889139.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/how-to-get-free-robux-com_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/games-like-minecraft-but-free_GM479516143.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/how-to-download-minecraft-for-free-on-pc_GM479516143.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/roblox-rape_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/rise-of-nations-roblox-hack_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/roblox-jailbreak-free-money-glitch_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/coin-master-33-hack-version-download_GM406889139.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/robux-codes_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/how-to-get-free-snacks-in-coin-master_GM406889139.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/minecraft-xbox-360-free-download-code_GM479516143.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/how-long-is-the-minecraft-free-trial_GM479516143.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/coin-master-hack-without-verification-code_GM406889139.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/can-you-get-roblox-on-xbox-one-for-free_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_off0000309b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x309B 22820 bytes
SHA-256: 0143e6f0dcd9c0c69640144f0f34e8fd0446fc246bd85b2bf589384b3437c11c
font_01_sfnt_off0000640c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x640C 19204 bytes
SHA-256: 68333a451c944ea2d648f2c8ec6e40c09067cf271cd12c46bf1c87ace88821dc