Malicious PDF — malware analysis report

Static analysis result for SHA-256 36167505ca0ad962…

MALICIOUS

PDF

36.0 KB Created: 2021-07-05 11:26:11 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: e864c4b333e1af92587a020d1e9d74e8 SHA-1: 11ff0405633403b576e0895a1f322345da30e8ee SHA-256: 36167505ca0ad962f5e4e0b71097ef5df57b0befe2c3dc3c80f08d65e09cc4dd
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 0.9890

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.tw/app/406889139/coin-master-free-spins-generator-no-verification-game-hack PDF link annotation
    • https://opac.umrah.ac.id/repository/unlimited-robux-hack-2021_GM431946152.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/free-spins-coin-master-facebook_GM406889139.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/free-robux-codes_GM431946152.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/free-robux-com-2021_GM431946152.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/free-robux-giveaway-2_GM431946152.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/coin-master-free-spins-usa-2021_GM406889139.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/free-tiktok-likes-app_GM835599320.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/coin-master-free-spin-link-today-2021_GM406889139.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/easy-free-robux-from-roblox_GM431946152.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/roblox-obby-for-free-robux_GM431946152.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/roblox-hack-scripts-exploit_GM431946152.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/free-spins-coin-master-blogspot_GM406889139.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/teleport-script-roblox-hack_GM431946152.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/roblox-hack-stats-one-piece-millenium_GM431946152.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/minecraft-mod-menu-apk_GM479516143.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/how-to-hack-admin-roblox-dll_GM431946152.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/free-robux-codes-tha-rwork_GM431946152.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/auto-clicker-roblox-free_GM431946152.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/free-spin-and-coin-blogspot-com_GM406889139.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/roblox-inappropriate-games_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_002_off00002eb8.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x2EB8 22052 bytes
SHA-256: ee50b7da52cfb0602024240fc2475af055fcbf7add7389a5b20b716f1cb43c15
font_01_sfnt_off00005f97.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5F97 2896 bytes
SHA-256: c1a618813a64314343402b2ec738fc11c4c912460a4c7ae3029924d2f9a229cd
font_02_sfnt_off0000697c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x697C 18308 bytes
SHA-256: d8bb098eee354013f30a84bae880d91a2ccb814b0413062c8bbdb3026ef12a31

Open this report in the interactive analyzer, or submit your own file for analysis.