Malicious PDF — malware analysis report

Static analysis result for SHA-256 5dacbd712a4c17e3…

MALICIOUS

PDF

34.3 KB Created: 2021-06-30 07:32:09 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 21cf5e4981eae23874ebb3ad07e1f440 SHA-1: 10473325d5a3015189a03acfbf253c4a289b7d39 SHA-256: 5dacbd712a4c17e3b82d6fea76b9caf9b6b780b1627d03febe2c1fb10fd9eb23
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/mediafre-roblox-hack-game-hack PDF link annotation
    • https://library.uigm.ac.id/repository/code-cheat-sur-roblox-deathrun_GM431946152.pdfIn PDF document text
    • https://library.uigm.ac.id/repository/roblox-apocalypse-rising-how-to-get-into-hardocre-free_GM431946152.pdfIn PDF document text
    • https://library.uigm.ac.id/repository/coin-master-hack_GM406889139.pdfIn PDF document text
    • https://library.uigm.ac.id/repository/free-robux-no-survey_GM431946152.pdfIn PDF document text
    • https://library.uigm.ac.id/repository/free-roblox-printables_GM431946152.pdfIn PDF document text
    • https://library.uigm.ac.id/repository/roblox-robux-hack-deutsch-2021_GM431946152.pdfIn PDF document text
    • https://library.uigm.ac.id/repository/free-roblox-codes-no-survey_GM431946152.pdfIn PDF document text
    • https://library.uigm.ac.id/repository/how-to-get-btools-in-roblox-with-cheat-engine_GM431946152.pdfIn PDF document text
    • https://library.uigm.ac.id/repository/free-robux-mod_GM431946152.pdfIn PDF document text
    • https://library.uigm.ac.id/repository/how-do-you-get-free-robux-without-paying_GM431946152.pdfIn PDF document text
    • https://library.uigm.ac.id/repository/how-to-get-free-accounts-on-roblox_GM431946152.pdfIn PDF document text
    • https://library.uigm.ac.id/repository/blox-fish-free-robux_GM431946152.pdfIn PDF document text
    • https://library.uigm.ac.id/repository/how-to-get-free-robux-no-hacks-or-virsus_GM431946152.pdfIn PDF document text
    • https://library.uigm.ac.id/repository/easy-steps-on-how-to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://library.uigm.ac.id/repository/coin-master-free-spins-link-2021-no-verification_GM406889139.pdfIn PDF document text
    • https://library.uigm.ac.id/repository/roblox-hack-file_GM431946152.pdfIn PDF document text
    • https://library.uigm.ac.id/repository/roblox-hack-cheat-engine-mac_GM431946152.pdfIn PDF document text
    • https://library.uigm.ac.id/repository/free-roblox-accounts-with-robux-2021-september_GM431946152.pdfIn PDF document text
    • https://library.uigm.ac.id/repository/free-robux-and-tix-generator-no-download_GM431946152.pdfIn PDF document text
    • https://library.uigm.ac.id/repository/free-robux-without-any-verification_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_off00002f2e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2F2E 22244 bytes
SHA-256: 1734695b009c52cf47f88c897f3ab0aac4d5c869d5aad3bd1a5f225fc7d4d03a
font_01_sfnt_off000060b2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x60B2 19144 bytes
SHA-256: 868c7e8e1e2165dd85a5d4042a8276bbb561e6dba3ac19cf5460f82965e8a013

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