Malicious PDF — malware analysis report

Static analysis result for SHA-256 452853e9ed76e3be…

MALICIOUS

PDF

34.4 KB Created: 2021-07-04 22:44:15 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: cc9916a0f6c353ea7f5ee8f61e4b9825 SHA-1: dc29cbd65d7940e81bce99b44e98050ef3fb7585 SHA-256: 452853e9ed76e3be36bd2e1e3120e4b11c4f0d2b9304a651a7a02fa806bf2e11
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/406889139/free-coin-master-account-game-hack PDF link annotation
    • https://library.itn.ac.id/perpusitn/repository/coin-master-hacks-to-get-spins_GM406889139.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/how-to-cheat-on-roblox-jailbreak_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/how-to-get-free-robux-in-meep-city-2021_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/free-roblox-shirt-templates-2021_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/blue-scythe-roblox-hack_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/free-robux-no-survey_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/free-robux-codes_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/hacks-para-roblox-dragon-ball-rage-2021_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/free-spins-for-coin-master-ios_GM406889139.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/how-to-get-free-robux-without-a-human-verification_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/coin-master-spin-hack-2021_GM406889139.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/hackear-juego-coin-master-espaol_GM406889139.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/roblox-v3rmillion-cheat-engine-bypass-hack_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/how-to-hack-coin-master-game-without-verification_GM406889139.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/roblox-arcane-adventures-stats-hack-script_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/roblox-minion-shirt-free_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/coin-master-free-spins-promo-code_GM406889139.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/noob-vs-pro-vs-hacker-vs-god-minecraft_GM479516143.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/roblox-hacount-hack_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/mobihack-roblox-hack_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_off0000307b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x307B 23036 bytes
SHA-256: fd0578a8b20957924bb70ab6d3171e6565fe7510c0948bed664ec937891bbe18
font_01_sfnt_off0000642e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x642E 18140 bytes
SHA-256: ca77f048189f6b42c4087a98757a7b7ee8d42f0b46b1d7450a305d57abf2558b

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