Malicious PDF — malware analysis report

Static analysis result for SHA-256 bc62b2f63d3bb160…

MALICIOUS

PDF

36.7 KB Created: 2021-05-24 05:12:56 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: 6e427e1ce7a68a36bd98864c9d6a1787 SHA-1: 530582509acb06733666607b3c5b5de1deea60dc SHA-256: bc62b2f63d3bb1600be75b95676795722600a36d9f169326d38e1b45e3f7b731
82 Risk Score

Malware Insights

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

The PDF document contains a lure for a 'free generator / game hack' which redirects to a malicious URL. This suggests the document is intended to trick users into downloading or executing further malicious content. While no scripts were explicitly extracted, the PDF structure and embedded URLs strongly indicate a malicious intent to redirect users to potentially harmful sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9447

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.xyz/app/479516143/minecraft-games-to-play-for-free-game-hack PDF link annotation
    • http://www.friendshiptransport.net/images/mcpe-master-hack-unlimited-coins-download_GM406889139.pdfIn PDF document text
    • http://www.friendshiptransport.net/images/robux-matchcomfree-robux_GM431946152.pdfIn PDF document text
    • http://www.friendshiptransport.net/images/free-tiktok-followers-no-survey_GM835599320.pdfIn PDF document text
    • http://www.friendshiptransport.net/images/toolbox-apk_GM479516143.pdfIn PDF document text
    • http://www.friendshiptransport.net/images/download-hacked-games-com-coin-master_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_off000036ed.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x36ED 24648 bytes
SHA-256: 3eeb51ac24168018123fd93c8bd465ca6d1e7cfe10e7681ecbb1da1022617fa9
font_01_sfnt_off00006e2d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6E2D 18380 bytes
SHA-256: e4e6021f190597b5ba2cc648d82e873dd3d7a425745f666e69b81b8efe23a832

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