Malicious PDF — malware analysis report

Static analysis result for SHA-256 beb108d56ab1c1e7…

MALICIOUS

PDF

40.4 KB Created: 2021-05-20 13:33:53 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: 1694ee2e98f9b919224611035823018e SHA-1: cc8e9a684381ff1dfdcf7d7075a0192e23567bb2 SHA-256: beb108d56ab1c1e7c6d2418fa320de2b967dd50cef73e09dc0912494a126ff0e
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links and a call-to-action phrase, directing users to websites offering "free generators" or "hacks" for games and social media. The primary malicious URL identified is https://netcdn.xyz/app/835599320/free-followers-on-tiktok-no-human-verification-game-hack, which is likely a phishing or malware distribution site. The document's content and heuristics strongly suggest a social engineering lure to trick users into visiting potentially harmful sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7768

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/835599320/free-followers-on-tiktok-no-human-verification-game-hack PDF link annotation
    • http://perpustakaan.ipts.ac.id/repository/roblox-promo-code-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://perpustakaan.ipts.ac.id/repository/coin-master-hack-apk-online_GM406889139.pdfIn PDF document text
    • http://perpustakaan.ipts.ac.id/repository/how-do-you-get-free-robux-2021_GM431946152.pdfIn PDF document text
    • http://perpustakaan.ipts.ac.id/repository/hack-coin-master-free_GM406889139.pdfIn PDF document text
    • http://perpustakaan.ipts.ac.id/repository/minecraft-18-9-hacked-client_GM479516143.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_002_off0000323d.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x323D 28656 bytes
SHA-256: 6dd55c04301b9b7dbe7933b483a49cc9a36fd245158c371bfe2bba89f10b948e
font_01_sfnt_off000071e1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x71E1 2940 bytes
SHA-256: eb230542719c96b42e3fd8bb01e35f13ebd5f02629049da3a58e7fd7607bf48a
font_02_sfnt_off00007bf0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7BF0 18456 bytes
SHA-256: 5534b02b098a51ec32b7f035b4f2847596f4a9c8f1af831c4be13fc52e3b9147

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