Malicious PDF — malware analysis report

Static analysis result for SHA-256 886f848976f535a6…

MALICIOUS

PDF

33.6 KB Created: 2021-06-29 00:05:00 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-07
MD5: cedf3538e9623564d970411b8c3f4493 SHA-1: a8c815f1f9b27ba0ee85f3df6cb09a070b8a0fa5 SHA-256: 886f848976f535a60949e46ca5b990107635f616eee7184f73103f702e35ca4f
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file contains a high-severity heuristic firing for a game hack redirect lure, pointing to a specific URL. The document body also contains this URL, reinforcing the lure. While no scripts were extracted, the presence of embedded URLs and the nature of the lure suggest an attempt to redirect the user to a malicious site, likely for phishing or 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.co/app/431946152/roblox-cbro-how-to-get-free-knife-game-hack PDF link annotation
    • http://digilib.iailm.ac.id/repository/free-coins-coin-master-today_GM406889139.pdfIn PDF document text
    • http://digilib.iailm.ac.id//repository/coin-master-free-spins-youthnow_GM406889139.pdfIn PDF document text
    • http://digilib.iailm.ac.id/repository/bugmenot-roblox-free-robux_GM431946152.pdfIn PDF document text
    • http://digilib.iailm.ac.id/repository/free-robux-code-genrator_GM431946152.pdfIn PDF document text
    • http://digilib.iailm.ac.id//repository/how-can-i-get-free-robux_GM431946152.pdfIn PDF document text
    • http://digilib.iailm.ac.id/repository/pubg-uc-through-easypaisa_GM1330123889.pdfIn PDF document text
    • http://digilib.iailm.ac.id/repository/how-to-hack-roblox-plaza_GM431946152.pdfIn PDF document text
    • http://digilib.iailm.ac.id/repository/robux-hack-sin-verificacion_GM431946152.pdfIn PDF document text
    • http://digilib.iailm.ac.id/repository/can-you-still-get-minecraft-windows-10-for-free_GM479516143.pdfIn PDF document text
    • http://digilib.iailm.ac.id/repository/free-redeem-code-for-coin-master_GM406889139.pdfIn PDF document text
    • http://digilib.iailm.ac.id//repository/coin-master-free-link-daily_GM406889139.pdfIn PDF document text
    • http://digilib.iailm.ac.id/repository/roblox-badge-hack_GM431946152.pdfIn PDF document text
    • http://digilib.iailm.ac.id//repository/card-hack-in-coin-master_GM406889139.pdfIn PDF document text
    • http://digilib.iailm.ac.id//repository/minecraft-java-free-account_GM479516143.pdfIn PDF document text
    • http://digilib.iailm.ac.id/repository/how-to-get-the-headless-head-on-roblox-for-free_GM431946152.pdfIn PDF document text
    • http://digilib.iailm.ac.id/repository/my-minecraft-account-was-hacked_GM479516143.pdfIn PDF document text
    • http://digilib.iailm.ac.id/repository/how-to-hack-le-bote-roblox_GM431946152.pdfIn PDF document text
    • http://digilib.iailm.ac.id/repository/can-my-childs-friend-hack-roblox-game_GM431946152.pdfIn PDF document text
    • http://digilib.iailm.ac.id/repository/free-robux-glitch-code_GM431946152.pdfIn PDF document text
    • http://digilib.iailm.ac.id//repository/coin-master-time-hack-ios_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
font_00_sfnt_off00002ebd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2EBD 21756 bytes
SHA-256: 3a2ac1b8b3cba2335e94aceea7176a5dfeddf5a41d75001e6ef5f7970c03633f
font_01_sfnt_off00005e5f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5E5F 19036 bytes
SHA-256: 0ce8779fe2078d06272177a41a6cbe8da6a484bf9e82d97266bbaa2e4f3946a6

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