Malicious PDF — malware analysis report

Static analysis result for SHA-256 d08b8ba94aad29ad…

MALICIOUS

PDF

43.7 KB Created: 2021-06-03 23:39:11 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 9f6ff7f0744584126eab6dafa687ba4a SHA-1: b9f9cf074fc6c1e25eb044a582a9d8692a8bbe65 SHA-256: d08b8ba94aad29ad6ace38d75760700330a840efc985eb8052a334a4edd195af
162 Risk Score

Malware Insights

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

The PDF document employs a lure of game hacks and free generators, specifically mentioning "Coin Master Hack Tool", to entice users. It presents a fake CAPTCHA or human verification prompt, a common tactic to trick users into executing malicious actions or downloading further payloads. The embedded URLs point to external sites that likely host the actual malicious content, suggesting a downloader or dropper functionality.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9865

Heuristics 6

  • 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
  • Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE
    Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
  • 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-hack-tool-no-human-verification-game-hack PDF link annotation
    • http://library.apsidoarjo.ac.id//repository/free-robux-generator-2021-no-survey_GM431946152.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id//repository/roblox-robux-hack-generator_GM431946152.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id/repository/how-to-get-minecraft-for-free-2021_GM479516143.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id//repository/coin-master-free-spins-link-2021-iphone_GM406889139.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id/repository/optifine-minecraft-pe_GM479516143.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id/repository/optifine-pe_GM479516143.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id//repository/coin-master-online-hack-no-survey-no-password_GM406889139.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id//repository/how-to-get-free-robux-without-email_GM431946152.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id//repository/free-robux-no-download_GM431946152.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id/repository/free-minecraft-server-hosting-24-7_GM479516143.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id//repository/roblox-adopt-me-hack_GM431946152.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id//repository/free-minecraft-hacks_GM479516143.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id/repository/coin-master-apk-hack-35-8_GM406889139.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id//repository/how-to-get-robux-easy_GM431946152.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id/repository/roblox-download-pc-free_GM431946152.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id//repository/blogspot-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id//repository/coin-master-hack-mod-apk-2021_GM406889139.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id/repository/coin-master-hackcom-xyz_GM406889139.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id/repository/minecraft-free-no-virus_GM479516143.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id//repository/coin-master-free-spins-only_GM406889139.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_off00005097.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x5097 24264 bytes
SHA-256: d64411427fd5c02acb331841682d46f741422ea877be75ee43bc3bcf74f45386
font_01_sfnt_off000087f4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x87F4 18324 bytes
SHA-256: 5d68777a78810bbeddf54f77e6d16d790f52e44d40945c316f4b63d7801a6e5b