Malicious PDF — malware analysis report

Static analysis result for SHA-256 01fdbd8efa4bac75…

MALICIOUS

PDF

35.7 KB Created: 2021-05-22 01:38:30 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: fc3b076e75112752b3fab54235f97274 SHA-1: 5c2d5a3abc82dd9c5a8a4d28be5b8ba2eff89335 SHA-256: 01fdbd8efa4bac751bceef8ffd399b9162ca683fb20399564a43815163f3149c
82 Risk Score

Malware Insights

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

The PDF document contains multiple links and a call-to-action to access a "Coin Master Free Coins And Spins App" generator, which is a common lure for phishing or malware distribution. The primary malicious URL identified is https://netcdn.xyz/app/406889139/coin-master-free-coins-and-spins-app-game-hack, which likely serves as a redirector to a malicious payload or scam page. No scripts were extracted, but the document's structure and embedded URIs strongly suggest a social engineering attack aimed at tricking users into visiting potentially harmful sites.

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-coins-and-spins-app-game-hack PDF link annotation
    • https://pelatihsenamjogja.com/ckfinder/userfiles/files/coin-master-hacks-for-free-spins_GM406889139.pdfIn PDF document text
    • https://pelatihsenamjogja.com/ckfinder/userfiles/files/how-to-get-100-robux-for-free_GM431946152.pdfIn PDF document text
    • https://pelatihsenamjogja.com/ckfinder/userfiles/files/coin-master-free-spins-link-no-verification-2021_GM406889139.pdfIn PDF document text
    • https://pelatihsenamjogja.com/ckfinder/userfiles/files/how-to-get-free-robux-in-2021_GM431946152.pdfIn PDF document text
    • https://pelatihsenamjogja.com/ckfinder/userfiles/files/pokemon-go-free-zoom_GM1094591345.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
stream_002_off00003163.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x3163 25588 bytes
SHA-256: 4693a2d4e973096582b264866b187e0a51185136091d44193657f31fc2eedd08
font_01_sfnt_off00006ac1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6AC1 18060 bytes
SHA-256: f77ee24e01944806ea28e16fd73427a54f7109e241804df06ce657d8c6d11cfb

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