Malicious PDF — malware analysis report

Static analysis result for SHA-256 227c6567bb9b8a9c…

MALICIOUS

PDF

44.1 KB Created: 2021-05-19 14:31:03 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-18
MD5: f32362b7e2b475fe95d3e140baf7170a SHA-1: 8f0fbcd8774a1976efd7251b6bb13a0625d31538 SHA-256: 227c6567bb9b8a9c69ebd2fad50cd5d88541d3356325ef17d6989fb5e3350878
182 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a lure for game hacks and free currency, specifically mentioning 'Coin Master Free Coins And Spins App'. It includes a high-risk heuristic for requesting recovery secrets, suggesting a phishing attempt. The document also contains embedded URLs pointing to potentially malicious sites that offer game hacks, which are likely used to trick users into downloading malware or providing sensitive information.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9648

Heuristics 6

  • Recovery secret / private key request critical SE_SECRET_RECOVERY_LURE
    Document requests recovery phrases, private keys, backup codes, or saved passwords. Requests for these secrets in a document are high-risk.
  • 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.
  • Fake CAPTCHA / human verification prompt high SE_FAKE_CAPTCHA
    Document displays a fake CAPTCHA or human-verification prompt — used to trick users into running commands or pressing keyboard shortcuts
  • 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
    • http://panaceafamilymedicine.com/images/free-hacks-for-coin-master_GM406889139.pdfIn PDF document text
    • http://panaceafamilymedicine.com/images/free-spin-coin-master-hacktoman_GM406889139.pdfIn PDF document text
    • http://panaceafamilymedicine.com/images/wurst-client-18-9_GM479516143.pdfIn PDF document text
    • http://panaceafamilymedicine.com/images/coin-master-free-daily-spins-link_GM406889139.pdfIn PDF document text
    • http://panaceafamilymedicine.com/images/how-to-get-robux-for-free-2021_GM431946152.pdfIn PDF document text
    • http://panaceafamilymedicine.com/images/coin-master-free_GM406889139.pdfIn PDF document text
    • http://panaceafamilymedicine.com/images/hacks-for-coin-master_GM406889139.pdfIn PDF document text
    • http://panaceafamilymedicine.com/images/free-robux-please_GM431946152.pdfIn PDF document text
    • http://panaceafamilymedicine.com/images/free-spins-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://panaceafamilymedicine.com/images/free-robux-no-human-verification-2021_GM431946152.pdfIn PDF document text
    • http://panaceafamilymedicine.com/images/get-more-robux_GM431946152.pdfIn PDF document text
    • http://panaceafamilymedicine.com/images/free-coin-master-game_GM406889139.pdfIn PDF document text
    • http://panaceafamilymedicine.com/images/free-robux-master_GM431946152.pdfIn PDF document text
    • http://panaceafamilymedicine.com/images/how-to-get-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://panaceafamilymedicine.com/images/minecraft-skins-free-girl_GM479516143.pdfIn PDF document text
    • http://panaceafamilymedicine.com/images/minecraft-texture-packs-free-download_GM479516143.pdfIn PDF document text
    • http://panaceafamilymedicine.com/images/coin-master-free-spins-and-coins_GM406889139.pdfIn PDF document text
    • http://panaceafamilymedicine.com/images/coinmaster-hack_GM406889139.pdfIn PDF document text
    • http://panaceafamilymedicine.com/images/microsoft-store-robux_GM431946152.pdfIn PDF document text
    • http://panaceafamilymedicine.com/images/coin-master-unlimited-free-spins_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
stream_003_off0000493e.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x493E 24620 bytes
SHA-256: b36847418655c5ac26c50c33f5a49421b4b0080c6670e10a670d67d9968b9fd6
font_01_sfnt_off0000809c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x809C 2840 bytes
SHA-256: 3fb127b764b9d10f5525bc4de5ec8316de704409ccb0cf21cff3ad8a30d11676
font_02_sfnt_off00008a4d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8A4D 18060 bytes
SHA-256: f77ee24e01944806ea28e16fd73427a54f7109e241804df06ce657d8c6d11cfb

Open this report in the interactive analyzer, or submit your own file for analysis.