Malicious PDF — malware analysis report

Static analysis result for SHA-256 1e9afb10edcb074b…

MALICIOUS

PDF

45.6 KB Created: 2021-06-03 13:10:18 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 1f22402c3e774648f26ae0d6148aed06 SHA-1: 10956dd7c703fa5731fd0b19d0d603ebf98e433f SHA-256: 1e9afb10edcb074b829f21361952966a9eaafed5cec5f28a9d823134e4b6d1cd
122 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document employs a lure related to game hacks and generators, directing users to a suspicious URL. The presence of a 'password-protected archive' lure suggests an attempt to bypass security scanning by encrypting a malicious payload. While no scripts were explicitly extracted, the PDF structure and embedded URLs indicate a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9864

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.
  • Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE
    Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
  • 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 https://netcdn.online/app/431946152/easy-robux-generator-game-hack PDF link annotation
    • http://elibrary.fl.unud.ac.id/repository/coin-master-online_GM406889139.pdfIn PDF document text
    • http://www.elibrary.fl.unud.ac.id/repository/best-free-robux-sites_GM431946152.pdfIn PDF document text
    • http://www.elibrary.fl.unud.ac.id/repository/coin-master-app-hack_GM406889139.pdfIn PDF document text
    • http://elibrary.fl.unud.ac.id/repository/how-to-hack-roblox-2021_GM431946152.pdfIn PDF document text
    • http://elibrary.fl.unud.ac.id/repository/coin-master-daily-gift-free-spins-and-coins_GM406889139.pdfIn PDF document text
    • http://www.elibrary.fl.unud.ac.id/repository/free-attacks-on-coin-master_GM406889139.pdfIn PDF document text
    • http://www.elibrary.fl.unud.ac.id/repository/free-spins-coin-master-twitter_GM406889139.pdfIn PDF document text
    • http://www.elibrary.fl.unud.ac.id/repository/free-spin-links-coin-master-october-30-2021_GM406889139.pdfIn PDF document text
    • http://elibrary.fl.unud.ac.id/repository/coin-master-hack-without-human-verification-2021_GM406889139.pdfIn PDF document text
    • http://elibrary.fl.unud.ac.id/repository/get-free-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://elibrary.fl.unud.ac.id/repository/today-coin-master-free-coins-link_GM406889139.pdfIn PDF document text
    • http://elibrary.fl.unud.ac.id/repository/50-free-spins-coin-master-links_GM406889139.pdfIn PDF document text
    • http://elibrary.fl.unud.ac.id/repository/coin-master-free-spins-link-2021-ios_GM406889139.pdfIn PDF document text
    • http://www.elibrary.fl.unud.ac.id/repository/how-to-get-free-robux-on-roblox-2021_GM431946152.pdfIn PDF document text
    • http://elibrary.fl.unud.ac.id/repository/free-money-and-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://www.elibrary.fl.unud.ac.id/repository/how-to-get-minecraft-pe-for-free_GM479516143.pdfIn PDF document text
    • http://www.elibrary.fl.unud.ac.id/repository/coin-master-spin-link-today_GM406889139.pdfIn PDF document text
    • http://elibrary.fl.unud.ac.id/repository/free-robux-working_GM431946152.pdfIn PDF document text
    • http://www.elibrary.fl.unud.ac.id/repository/minecraft-java-edition-free_GM479516143.pdfIn PDF document text
    • http://www.elibrary.fl.unud.ac.id/repository/coin-master-daily-free-spins-link-app_GM406889139.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_004_off00005369.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x5369 25856 bytes
SHA-256: d197a052d7de9f73afb1e30a1e8b2920caa61deb3a131a440b0f8e3754ba98de
font_01_sfnt_off00008f24.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8F24 18360 bytes
SHA-256: 31f26fbfc7f81002b444b70a1657336c723b940a34509e70260c3e3e292c9165

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