Malicious PDF — malware analysis report

Static analysis result for SHA-256 cc612bafecbf48de…

MALICIOUS

PDF

36.9 KB Created: 2021-05-21 06:28:41 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: 3db3e3e10a2231f3fe30019d58783bf2 SHA-1: bf1db759b61693c346975492aa5b65a65e488343 SHA-256: cc612bafecbf48dee35b3d9d371fdea9a710732f9e8074992739dc7fed5cd4b7
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple embedded links and a prominent call-to-action, masquerading as a generator or hack for popular games and services like TikTok. The primary lure directs users to 'https://netcdn.xyz/app/835599320/free-tiktok-accounts-game-hack', which is likely a phishing or scam page. While no scripts were explicitly extracted, the PDF structure and heuristics indicate malicious intent to redirect users to potentially harmful external sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7095

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-tiktok-accounts-game-hack PDF link annotation
    • http://tc-kulmbach.de/images/coin-master-hacking-news_GM406889139.pdfIn PDF document text
    • http://tc-kulmbach.de/images/coin-master-spin-cheat_GM406889139.pdfIn PDF document text
    • http://tc-kulmbach.de/images/no-human-verification-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://tc-kulmbach.de/images/free-robux-no-verify-2021_GM431946152.pdfIn PDF document text
    • http://tc-kulmbach.de/images/daily-free-spin-link-in-coin-master_GM406889139.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
font_00_sfnt_off00002dea.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2DEA 25976 bytes
SHA-256: 52ecee84cf76203f35d197b32bb33f5aa6156f9792e16ff1b2f9866b54114f8a
font_01_sfnt_off000066ef.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x66EF 2840 bytes
SHA-256: 3fb127b764b9d10f5525bc4de5ec8316de704409ccb0cf21cff3ad8a30d11676
font_02_sfnt_off000070a1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x70A1 17596 bytes
SHA-256: 78bf98ee26562f259e5df0f7ea395c63cf95895c72ff2901d5340c85fa588773

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