Malicious PDF — malware analysis report

Static analysis result for SHA-256 e3840a777cded0c9…

MALICIOUS

PDF

38.4 KB Created: 2021-06-29 22:52:01 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-18
MD5: cc6f6da6bc0c97975b5c64a80b88ac21 SHA-1: aae6ec7e19c4c5644423afe3ee9e674f812c8461 SHA-256: e3840a777cded0c96ef70e8bde039b8dc64c4b00b766159bd4e883edf4b64eed
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links and lures related to game hacks and free in-game currency, such as 'how-to-get-free-robux'. The primary link, http://netcdn.co/app/431946152/how-to-get-free-robux-in-jail-breck-game-hack, is a strong indicator of a phishing or malware distribution attempt. While no scripts were explicitly extracted, the PDF structure and embedded URLs suggest a malicious intent to redirect users to potentially harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9985

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/how-to-get-free-robux-in-jail-breck-game-hack PDF link annotation
    • http://www.pspmrsmmbk.com/cendana/repository/robux-hacks-2021_GM431946152.pdfIn PDF document text
    • http://www.pspmrsmmbk.com/cendana/repository/hack-coin-master-android_GM406889139.pdfIn PDF document text
    • http://www.pspmrsmmbk.com/cendana/repository/roblox-hacks-leak-forums_GM431946152.pdfIn PDF document text
    • http://www.pspmrsmmbk.com/cendana/repository/claim-free-robux-button_GM431946152.pdfIn PDF document text
    • http://www.pspmrsmmbk.com/cendana//repository/coin-master-homepage_GM406889139.pdfIn PDF document text
    • http://www.pspmrsmmbk.com/cendana/repository/coin-master-hack-without-downloading-apps_GM406889139.pdfIn PDF document text
    • http://www.pspmrsmmbk.com/cendana/repository/pubg-uc-mod-2021_GM1330123889.pdfIn PDF document text
    • http://www.pspmrsmmbk.com/cendana/repository/how-to-get-unlimited-robux_GM431946152.pdfIn PDF document text
    • http://www.pspmrsmmbk.com/cendana/repository/free-roblox-gift-card-codes-2021_GM431946152.pdfIn PDF document text
    • http://www.pspmrsmmbk.com/cendana/repository/daily-coin-master_GM406889139.pdfIn PDF document text
    • http://www.pspmrsmmbk.com/cendana/repository/minecraft-ps4-free_GM479516143.pdfIn PDF document text
    • http://www.pspmrsmmbk.com/cendana/repository/guess-that-character-for-free-robux_GM431946152.pdfIn PDF document text
    • http://www.pspmrsmmbk.com/cendana/repository/how-to-get-50-robux-for-free_GM431946152.pdfIn PDF document text
    • http://www.pspmrsmmbk.com/cendana//repository/how-to-hack-roblox_GM431946152.pdfIn PDF document text
    • http://www.pspmrsmmbk.com/cendana//repository/get-free-robux-com_GM431946152.pdfIn PDF document text
    • http://www.pspmrsmmbk.com/cendana//repository/coin-master-hack-tool-exe_GM406889139.pdfIn PDF document text
    • http://www.pspmrsmmbk.com/cendana//repository/minecraft-hacked-client-18_GM479516143.pdfIn PDF document text
    • http://www.pspmrsmmbk.com/cendana//repository/pokemon-go-free-coins_GM1094591345.pdfIn PDF document text
    • http://www.pspmrsmmbk.com/cendana//repository/androeed-ru-minecraft_GM479516143.pdfIn PDF document text
    • http://www.pspmrsmmbk.com/cendana/repository/free-robux-no-downloads-2021_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_off00003d71.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3D71 22688 bytes
SHA-256: 3b9a5bc3f442a2810579fe6c6ead844e59ab9c8fc608b8a1b4b5dc071f511f7b
font_01_sfnt_off00006fee.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6FEE 19516 bytes
SHA-256: 639d625dab731aa8ac20a41d3ca911992f3edb8e4e6087bf1615eee1042fbe3b

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