Malicious PDF — malware analysis report

Static analysis result for SHA-256 babd26d80fa6d46a…

MALICIOUS

PDF

34.8 KB Created: 2021-07-09 09:25:40 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 7a9893df6d08c199fcf0bf284bea6633 SHA-1: 2f72a56a2ff2abacc9dc86b28cca07bf888d9ea6 SHA-256: babd26d80fa6d46a4513d52fa8e9b82fd28a82405be7aa1615433d1650d965e6
82 Risk Score

Malware Insights

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

This PDF document employs a game hack lure to entice users to click on malicious links. The primary link, http://netcdn.tw/app/431946152/roblox-inappropriate-games-game-hack, is associated with a high-risk redirector, suggesting it leads to a malicious payload or phishing site. While no scripts were explicitly extracted, the PDF structure and embedded URLs indicate a likely attempt to exploit vulnerabilities or deliver a second-stage download, aligning with common tactics for malware distribution.

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/roblox-inappropriate-games-game-hack PDF link annotation
    • http://www.agasrestaurant.com/uploaded_files/userfiles/files/robuxy-com-free-robux_GM431946152.pdfIn PDF document text
    • http://www.agasrestaurant.com/uploaded_files/userfiles/files/coin-master-free-spins-and-coins-app-download_GM406889139.pdfIn PDF document text
    • http://www.agasrestaurant.com/uploaded_files/userfiles/files/roblox-continue-as-a-guest-for-free_GM431946152.pdfIn PDF document text
    • http://www.agasrestaurant.com/uploaded_files/userfiles/files/coin-master-apk-hack_GM406889139.pdfIn PDF document text
    • http://www.agasrestaurant.com/uploaded_files/userfiles/files/how-to-get-free-robux-app_GM431946152.pdfIn PDF document text
    • http://www.agasrestaurant.com/uploaded_files/userfiles/files/how-can-i-get-free-robux_GM431946152.pdfIn PDF document text
    • http://www.agasrestaurant.com/uploaded_files/userfiles/files/coin-master-free-spins-hack_GM406889139.pdfIn PDF document text
    • http://www.agasrestaurant.com/uploaded_files/userfiles/files/promo-codes-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://www.agasrestaurant.com/uploaded_files/userfiles/files/coin-master-cheats-2021_GM406889139.pdfIn PDF document text
    • http://www.agasrestaurant.com/uploaded_files/userfiles/files/coin-master-free-generator_GM406889139.pdfIn PDF document text
    • http://www.agasrestaurant.com/uploaded_files/userfiles/files/roblox-anthem-hack-edition_GM431946152.pdfIn PDF document text
    • http://www.agasrestaurant.com/uploaded_files/userfiles/files/2021-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://www.agasrestaurant.com/uploaded_files/userfiles/files/free-spins-coin-master-links-blogspot_GM406889139.pdfIn PDF document text
    • http://www.agasrestaurant.com/uploaded_files/userfiles/files/minecraft-for-laptop-free_GM479516143.pdfIn PDF document text
    • http://www.agasrestaurant.com/uploaded_files/userfiles/files/how-to-get-explorer-up-on-roblox-hack-v3rmillion_GM431946152.pdfIn PDF document text
    • http://www.agasrestaurant.com/uploaded_files/userfiles/files/how-to-get-free-robux-hack-2021_GM431946152.pdfIn PDF document text
    • http://www.agasrestaurant.com/uploaded_files/userfiles/files/free-robux-hack_GM431946152.pdfIn PDF document text
    • http://www.agasrestaurant.com/uploaded_files/userfiles/files/a-hack-gift-card-on-roblox_GM431946152.pdfIn PDF document text
    • http://www.agasrestaurant.com/uploaded_files/userfiles/files/roblox-yammy-xox-hacking_GM431946152.pdfIn PDF document text
    • http://www.agasrestaurant.com/uploaded_files/userfiles/files/free-minecraft-printables_GM479516143.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_off0000336c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x336C 21572 bytes
SHA-256: d16a5dcfda85dd4c72e3108af3b93b1f5e87b793c18d4d2e62b81606580b33ac
font_01_sfnt_off000062af.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x62AF 19144 bytes
SHA-256: 962ed03b51a907c483c3a4dabfb82cc9a3e866fb956ce5443609f5cba8a742c7

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