Malicious PDF — malware analysis report

Static analysis result for SHA-256 7cdc5f9f02fec2fc…

MALICIOUS

PDF

45.4 KB Created: 2021-06-04 06:33:35 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 151064f689ecf628bc8158f535f0c548 SHA-1: 8028ecfde76fed2e25c0c9ab1e77b39be0164a30 SHA-256: 7cdc5f9f02fec2fc9adc1809ed26ce49c75b3e90680ba05ef0e6499a96ba80fe
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple embedded URLs, with a primary focus on luring users with 'free spins' and 'game hacks' for popular games like Coin Master and Roblox. The heuristic firings strongly indicate a redirection to a malicious site, likely for phishing or malware distribution. Although no scripts were explicitly extracted, the nature of the lures and the embedded URLs suggest a potential for further malicious activity upon user interaction.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9864

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.online/app/406889139/coin-master-heaven-free-spins-link-2021-today-game-hack PDF link annotation
    • http://lib.baruna-husada.ac.id/repository/free-robux-no-verification-or-survey_GM431946152.pdfIn PDF document text
    • http://lib.baruna-husada.ac.id/repository/free-robux-generator-no-human-verification-2021_GM431946152.pdfIn PDF document text
    • http://lib.baruna-husada.ac.id//repository/coin-master-free-spins-link-2021-today_GM406889139.pdfIn PDF document text
    • http://lib.baruna-husada.ac.id//repository/how-do-i-get-free-robux-on-roblox_GM431946152.pdfIn PDF document text
    • http://lib.baruna-husada.ac.id//repository/roblox-free-robux-no-verification_GM431946152.pdfIn PDF document text
    • http://lib.baruna-husada.ac.id//repository/get-free-spins-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://lib.baruna-husada.ac.id//repository/my-robux_GM431946152.pdfIn PDF document text
    • http://lib.baruna-husada.ac.id/repository/free-spin-in-coin-master_GM406889139.pdfIn PDF document text
    • http://lib.baruna-husada.ac.id/repository/twitter-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://lib.baruna-husada.ac.id/repository/free-chest-coin-master_GM406889139.pdfIn PDF document text
    • http://lib.baruna-husada.ac.id/repository/pokemon-go-free-bot_GM1094591345.pdfIn PDF document text
    • http://lib.baruna-husada.ac.id//repository/50-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://lib.baruna-husada.ac.id/repository/wurst-hacked-client_GM479516143.pdfIn PDF document text
    • http://lib.baruna-husada.ac.id//repository/coin-master-free-spins-link-2021-no-verification-deutsch_GM406889139.pdfIn PDF document text
    • http://lib.baruna-husada.ac.id//repository/robux-com-roblox_GM431946152.pdfIn PDF document text
    • http://lib.baruna-husada.ac.id/repository/tiktok-likes-for-free_GM835599320.pdfIn PDF document text
    • http://lib.baruna-husada.ac.id//repository/mobihack-net-roblox-hack_GM431946152.pdfIn PDF document text
    • http://lib.baruna-husada.ac.id/repository/pokemon-go-free-quiz_GM1094591345.pdfIn PDF document text
    • http://lib.baruna-husada.ac.id//repository/is-coin-master-free_GM406889139.pdfIn PDF document text
    • http://lib.baruna-husada.ac.id//repository/free-robux-codes_GM431946152.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_004_off000053ea.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x53EA 25360 bytes
SHA-256: c02aba666a7458fb2fd04ad780a5ca4ec5fc62c5683b928f208eaec6246ef11b
font_01_sfnt_off00008cce.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8CCE 18928 bytes
SHA-256: 6c02eefe1d6ccefe48eb04d1ff5bd485ce1aa9bd94615c823ea62003c3b46c2b

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