Malicious PDF — malware analysis report

Static analysis result for SHA-256 82328b9672158f10…

MALICIOUS

PDF

34.0 KB Created: 2021-06-20 04:27:06 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: f26e9fa218be14a4c4ac9ba0b6736fa9 SHA-1: eff2b6790f46359738443e2e397fab3c89673b2e SHA-256: 82328b9672158f106e9c2d946e7707f1ffb9924d6fa74c67d64f7042a67eb985
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 0.9980

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 http://netcdn.co/app/431946152/free-download-roblox-robux-hack-game-hack PDF link annotation
    • http://www.pspmrsmmbk.com/cendana/repository/free-robux-apk-extension_GM431946152.pdfIn PDF document text
    • http://www.pspmrsmmbk.com/cendana/repository/how-can-you-get-robux_GM431946152.pdfIn PDF document text
    • http://www.pspmrsmmbk.com/cendana//repository/robux_GM431946152.pdfIn PDF document text
    • http://www.pspmrsmmbk.com/cendana/repository/minecraft-bedrock-server-hosting-free_GM479516143.pdfIn PDF document text
    • http://www.pspmrsmmbk.com/cendana/repository/robux-money_GM431946152.pdfIn PDF document text
    • http://www.pspmrsmmbk.com/cendana//repository/minecraft-free-download-android-apk_GM479516143.pdfIn PDF document text
    • http://www.pspmrsmmbk.com/cendana//repository/coin-master-daily-free-spins-link-today-2021-free_GM406889139.pdfIn PDF document text
    • http://www.pspmrsmmbk.com/cendana/repository/anti-hacking-roblox-names_GM431946152.pdfIn PDF document text
    • http://www.pspmrsmmbk.com/cendana/repository/how-do-you-hack-minecraft_GM479516143.pdfIn PDF document text
    • http://www.pspmrsmmbk.com/cendana//repository/get-robux-today_GM431946152.pdfIn PDF document text
    • http://www.pspmrsmmbk.com/cendana/repository/how-to-get-free-robux-no-downloading-apps_GM431946152.pdfIn PDF document text
    • http://www.pspmrsmmbk.com/cendana/repository/how-to-cheat-in-roblox-got-talent_GM431946152.pdfIn PDF document text
    • http://www.pspmrsmmbk.com/cendana/repository/how-to-hack-into-someones-roblox-account_GM431946152.pdfIn PDF document text
    • http://www.pspmrsmmbk.com/cendana//repository/coin-master-home_GM406889139.pdfIn PDF document text
    • http://www.pspmrsmmbk.com/cendana/repository/how-to-get-free-coins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://www.pspmrsmmbk.com/cendana/repository/mcpe-hack-client_GM479516143.pdfIn PDF document text
    • http://www.pspmrsmmbk.com/cendana//repository/coin-master-daily-free-spins-link-today-blogspot_GM406889139.pdfIn PDF document text
    • http://www.pspmrsmmbk.com/cendana/repository/is-it-possible-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://www.pspmrsmmbk.com/cendana/repository/is-there-an-actual-hack-that-work-for-coin-master_GM406889139.pdfIn PDF document text
    • http://www.pspmrsmmbk.com/cendana/repository/game-guardian-roblox-hacks_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
font_00_sfnt_off00002e25.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2E25 22016 bytes
SHA-256: 89559f7aad92640e8e738feee1c1e69ca669b39a79ba0544fac9e34cb80a4713
font_01_sfnt_off00005eaf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5EAF 19464 bytes
SHA-256: d72c231570e8ad20d1d8d30fcda81211176157e6fe906f534ca6d25d6ac39635

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