Malicious PDF — malware analysis report

Static analysis result for SHA-256 ce91c250267d6f6e…

MALICIOUS

PDF

35.4 KB Created: 2021-05-23 02:34:38 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: 59ce21ea420a43c76005d4d0988d2e99 SHA-1: 29d5cb5233f2902a0bdccda357b126711acde4ea SHA-256: ce91c250267d6f6e33af3ecbe07f7cbb098e1caeada7bddd474f8fa624d00c1a
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links and a call-to-action phrase designed to trick users into visiting a website promising free in-game currency. The primary link redirects to a URL associated with game hacks and generators, a common lure for phishing or malware distribution. While no scripts were explicitly extracted, the PDF structure and embedded URIs suggest an attempt to redirect the user to a malicious site, likely for credential harvesting or further payload delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9648

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/406889139/coin-master-free-spins-and-coins-daily-game-hack PDF link annotation
    • http://centuriatus.com/images/free-tiktok-fans-no-verification_GM835599320.pdfIn PDF document text
    • http://centuriatus.com/images/minecraft-pe-015-0-apk-free-download_GM479516143.pdfIn PDF document text
    • http://centuriatus.com/images/minecraft-wurst-hacked-client_GM479516143.pdfIn PDF document text
    • http://centuriatus.com/images/coin-master-hack-here_GM406889139.pdfIn PDF document text
    • http://centuriatus.com/images/how-to-hack-coins-in-mcpe-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_off0000329c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x329C 23700 bytes
SHA-256: a12c8b48a15dc34abac074ed3f97fda987ea1972d9f14f81fddf4af6ed48a7ac
font_01_sfnt_off00006824.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6824 18480 bytes
SHA-256: e9052e0f9c593188345ba389179451ef12c6c6a401d56a628cce0964dfd3917c

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