Malicious PDF — malware analysis report

Static analysis result for SHA-256 c3e19de21f935856…

MALICIOUS

PDF

45.4 KB Created: 2021-06-09 07:53:14 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-05
MD5: 77e3f877a739cb81426d8561b4f9cce1 SHA-1: 67a640a372de2806b6c8765a8278356b8a417b9b SHA-256: c3e19de21f935856ec43bd7c3c6a052ecc3c230024591f752ba69fa8dc6e84ad
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains lures related to game hacks and free items, directing users to external URLs. The presence of a 'free generator / game hack' redirector heuristic and numerous embedded URLs strongly suggests a phishing or malware distribution attempt. While no scripts were explicitly extracted, the PDF structure and embedded links are indicative of malicious intent, likely to trick users into downloading further malicious content or revealing credentials.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9864

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 https://netcdn.tw/app/431946152/how-to-hack-roblox-using-unity-game-hack PDF link annotation
    • https://hassel-event.de/images/free-minecraft-java-account_GM479516143.pdfIn PDF document text
    • https://hassel-event.de/images/coin-master-free-spin-link-app_GM406889139.pdfIn PDF document text
    • https://hassel-event.de/images/how-to-free-robux_GM431946152.pdfIn PDF document text
    • https://hassel-event.de/images/free-disney-plus-accounts-tiktok_GM835599320.pdfIn PDF document text
    • https://hassel-event.de/images/free-robux-generator-for-roblox-2021_GM431946152.pdfIn PDF document text
    • https://hassel-event.de/images/get-free-robux-today_GM431946152.pdfIn PDF document text
    • https://hassel-event.de/images/pokemon-go-free-pokemon-hack_GM1094591345.pdfIn PDF document text
    • https://hassel-event.de/images/free-robux-for-roblox-2021_GM431946152.pdfIn PDF document text
    • https://hassel-event.de/images/best-way-to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://hassel-event.de/images/village-4-coin-master_GM406889139.pdfIn PDF document text
    • https://hassel-event.de/images/is-minecraft-free-on-pc_GM479516143.pdfIn PDF document text
    • https://hassel-event.de/images/best-free-minecraft-server-hosting_GM479516143.pdfIn PDF document text
    • https://hassel-event.de/images/free-coins-and-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • https://hassel-event.de/images/descargar-coin-master-hackeado_GM406889139.pdfIn PDF document text
    • https://hassel-event.de/images/oprewards-com-earn_GM431946152.pdfIn PDF document text
    • https://hassel-event.de/images/how-to-hack-roblox-accounts-for-robux_GM431946152.pdfIn PDF document text
    • https://hassel-event.de/images/how-to-hack-roblox-for-robux-2021_GM431946152.pdfIn PDF document text
    • https://hassel-event.de/images/free-minecraft-hacks_GM479516143.pdfIn PDF document text
    • https://hassel-event.de/images/minecraft-free-download-unblocked_GM479516143.pdfIn PDF document text
    • https://hassel-event.de/images/free-minecraft-pe-server_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
stream_004_off00004df9.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4DF9 26948 bytes
SHA-256: 3bc24043b7b8a65822533f5f356cec2733e1c2cf81b72c8c994e30db47e924f6
font_01_sfnt_off00008bbd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8BBD 19224 bytes
SHA-256: a4c73bce3028396cb7b196ae231bad9df77ca723f8d3b6821745e19703444bd8

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