Malicious PDF — malware analysis report

Static analysis result for SHA-256 4e9809ae10ef95f8…

MALICIOUS

PDF

35.9 KB Created: 2021-07-05 17:25:08 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-22
MD5: 4545c4a53c2e25491c7ff3f6929aa14a SHA-1: afa46d7d2d027d1ff8e2178621032c478f689bb8 SHA-256: 4e9809ae10ef95f8d7e2e9ae41a10fc01e0c409b3f31e6e3f4e4f76ff552425e
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.tw/app/431946152/roblox-studio-free-download-game-hack PDF link annotation
    • https://library.itn.ac.id/perpusitn/repository/free-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/coin-master-hack-2021-no-human-verification_GM406889139.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/pokemon-go-free-60fps_GM1094591345.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/pubg-uc-png_GM1330123889.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/roblox-anti-crash-hack_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/roblox-btools-script-hack-sitev3rmillionnet_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/hack-tools-download-roblox_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/como-hackear-en-roblox_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/how-do-you-hack-in-jailbreak-roblox_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/how-to-cheat-in-roblox-mega-fun-obby_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/minecraft-windows-10-free-code_GM479516143.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/coin-master-free-spins-youthnow_GM406889139.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/download-cheat-roblox-jailbreak_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/roblox-easter-event-free-robux_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/roblox-fly-hack-download-2021_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/free-spin-link-in-coin-master-game_GM406889139.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/how-to-hightspeed-roblox-with-cheat-engine_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/free-roblox-account-with-ridable-pets_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/pixies-gigantic-coin-master-free-spins-and-coins_GM406889139.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/free-online-games-like-roblox_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_off0000329a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x329A 22804 bytes
SHA-256: 68d851343fbd3a3f5e8f791200dacd8bc68a396ef8d3b51705110f29e200ab8d
font_01_sfnt_off000065bd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x65BD 19520 bytes
SHA-256: 32abd373921e57db2f0dd1d224be69154d6949e736b02c1ad943af3dce668cbd

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