Malicious PDF — malware analysis report

Static analysis result for SHA-256 9911608bf204af04…

MALICIOUS

PDF

34.6 KB Created: 2021-07-04 21:37:32 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-18
MD5: ff154183cdc9fddad9f217e33804d7c5 SHA-1: 7d5be1c984592818d08593c62a924d89a71dd94e SHA-256: 9911608bf204af04e0b494a3bdcc51801ba4337a3deb7307e53a7fca668c2c68
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple embedded links and text referencing game hacks and free in-game currency for popular games like Coin Master and Roblox. The primary URL, http://netcdn.tw/app/406889139/how-to-get-free-coins-on-coin-master-iphone-game-hack, is flagged as a high-risk redirector. This suggests the document is designed to lure users into clicking these links, likely leading to malicious websites that could host further malware or phishing content.

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/how-to-get-free-coins-on-coin-master-iphone-game-hack PDF link annotation
    • https://library.itn.ac.id/perpusitn/repository/coin-master-hack-lost-world-2021_GM406889139.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/free-robux-no-tests_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/coin-master-free-spins-and-coins-today-gift-reward_GM406889139.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/how-to-get-free-roblox-on-roblox_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/roblox-script-executor-free_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/free-robux-without-verify_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/youtube-roblox-get-free-robux_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/coin-master-free-spins-link-2021-hack_GM406889139.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/how-to-steal-hack-anyones-roblox-account_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/free-spins-coin-master-october-17-2021_GM406889139.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/free-robux-codes-on-ios_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/roblox-ban-script-hack_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/how-to-create-your-own-roblox-hacks_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/robloxcom-free-bc_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/roblox-free-robux-obby-working_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/how-to-get-free-outrageous-builders-club-on-roblox-2021_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/hack-para-robux-gratis-2021_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/roblox-hack-rc7-download_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/how-to-download-roblox-strucid-hacks-for-free_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/free-robux-safe_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_off00003263.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3263 22304 bytes
SHA-256: 740abfe7f988756e25cb970d8079eaa6a3c31c79a06a342a4ef05571b5035aec
font_01_sfnt_off000063fe.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x63FE 18504 bytes
SHA-256: 395fc550c26729eff2306150ae31713d8bd4c4ff218e2b94d4b8ad057d21bb45

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