Malicious PDF — malware analysis report

Static analysis result for SHA-256 95f3ddcfa099a0c7…

MALICIOUS

PDF

43.1 KB Created: 2021-06-03 08:58:56 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-01
MD5: 6ac1491e5b0f01e3026138c92ce52415 SHA-1: c3c90d72e84fd17cbfc3270eec21e0bcc00fc6e8 SHA-256: 95f3ddcfa099a0c73e486210b4dc95915694dff3ce407bcd132542ae15bdd672
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document was flagged as malicious by an ML classifier. The file routes users through malicious redirector infrastructure and presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9874

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/free-card-collection-in-coin-master-game-hack PDF link annotation
    • https://pustaka.mic.sch.id/repository/minecraft-windows-10-free-trial_GM479516143.pdfIn PDF document text
    • https://pustaka.mic.sch.id//repository/free-robux-generator-no-survey-no-download-no-human-verification_GM431946152.pdfIn PDF document text
    • https://pustaka.mic.sch.id//repository/free-robux-real-2021_GM431946152.pdfIn PDF document text
    • https://pustaka.mic.sch.id//repository/100-hack-coin-master_GM406889139.pdfIn PDF document text
    • https://pustaka.mic.sch.id//repository/robux-generator-no-verification-2021_GM431946152.pdfIn PDF document text
    • https://pustaka.mic.sch.id//repository/master-free-spins-and-coins_GM406889139.pdfIn PDF document text
    • https://pustaka.mic.sch.id//repository/robux-generator-that-works_GM431946152.pdfIn PDF document text
    • https://pustaka.mic.sch.id//repository/how-to-get-free-coins-on-coin-master_GM406889139.pdfIn PDF document text
    • https://pustaka.mic.sch.id//repository/coin-master-free-coins-and-spins-2021_GM406889139.pdfIn PDF document text
    • https://pustaka.mic.sch.id//repository/free-bobux_GM431946152.pdfIn PDF document text
    • https://pustaka.mic.sch.id//repository/roblox-studio-free-robux_GM431946152.pdfIn PDF document text
    • https://pustaka.mic.sch.id//repository/coin-master-heaven-free-spins-today_GM406889139.pdfIn PDF document text
    • https://pustaka.mic.sch.id//repository/free-executor-roblox_GM431946152.pdfIn PDF document text
    • https://pustaka.mic.sch.id//repository/free-spin-app-coin-master_GM406889139.pdfIn PDF document text
    • https://pustaka.mic.sch.id//repository/master-coin-master-free-spin_GM406889139.pdfIn PDF document text
    • https://pustaka.mic.sch.id//repository/haktuts-coin-master-today_GM406889139.pdfIn PDF document text
    • https://pustaka.mic.sch.id//repository/coin-master-card-hack-2021_GM406889139.pdfIn PDF document text
    • https://pustaka.mic.sch.id//repository/funbloxxyz-free-robux_GM431946152.pdfIn PDF document text
    • https://pustaka.mic.sch.id//repository/coin-master-free-spins-2021_GM406889139.pdfIn PDF document text
    • https://pustaka.mic.sch.id//repository/give-me-robux-now_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_off00005017.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x5017 23976 bytes
SHA-256: 05af97b788e2d32f5b48bc8cd3b4d02f10f0bf6acad6dfeb6dc95dda5dc6cba9
font_01_sfnt_off000086c8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x86C8 17960 bytes
SHA-256: edc3bf59ec5464d2d6a561628fecaf1a0820252d93c85382beb4d086388a752e

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