Malicious PDF — malware analysis report

Static analysis result for SHA-256 0734dd3a6740ac6a…

MALICIOUS

PDF

35.5 KB Created: 2021-06-22 18:39:38 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: b2f7b55d8a15d9688714afab4f977fe8 SHA-1: 87f8c09fa09b18a2df42e32496a326d8e25d44d4 SHA-256: 0734dd3a6740ac6a7944fd98527aeabb8baf3300edf11ad6f22678decb7bee83
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/free-free-free-robux-game-hack PDF link annotation
    • https://javisintlmedia.com/images/wurst-112_GM479516143.pdfIn PDF document text
    • https://javisintlmedia.com/images/easy-robux-today-com_GM431946152.pdfIn PDF document text
    • https://javisintlmedia.com/images/roblox-dex-explorer-hack_GM431946152.pdfIn PDF document text
    • https://javisintlmedia.com/images/coin-master-free-daily-spins-and-coins_GM406889139.pdfIn PDF document text
    • https://javisintlmedia.com/images/robux-hacks-no-human-verification-2021_GM431946152.pdfIn PDF document text
    • https://javisintlmedia.com/images/get-minecraft-for-free_GM479516143.pdfIn PDF document text
    • https://javisintlmedia.com/images/how-can-i-hack-someones-account-on-roblox_GM431946152.pdfIn PDF document text
    • https://javisintlmedia.com/images/roblox-hacks-2021_GM431946152.pdfIn PDF document text
    • https://javisintlmedia.com/images/free-roblox-generator_GM431946152.pdfIn PDF document text
    • https://javisintlmedia.com/images/free-morph-gui-roblox_GM431946152.pdfIn PDF document text
    • https://javisintlmedia.com/images/minecraft-pe-free-apk_GM479516143.pdfIn PDF document text
    • https://javisintlmedia.com/images/cheating-hacks-for-coin-master_GM406889139.pdfIn PDF document text
    • https://javisintlmedia.com/images/coin-master-free-spin-and-coins-links-2021_GM406889139.pdfIn PDF document text
    • https://javisintlmedia.com/images/free-roblox-com_GM431946152.pdfIn PDF document text
    • https://javisintlmedia.com/images/how-to-make-hack-roblox_GM431946152.pdfIn PDF document text
    • https://javisintlmedia.com/images/best-free-minecraft-servers_GM479516143.pdfIn PDF document text
    • https://javisintlmedia.com/images/minecraft-windows-10-edition-free_GM479516143.pdfIn PDF document text
    • https://javisintlmedia.com/images/free-daily-spins-coin-master_GM406889139.pdfIn PDF document text
    • https://javisintlmedia.com/images/coin-master-free-spins-link-today-new_GM406889139.pdfIn PDF document text
    • https://javisintlmedia.com/images/how-to-get-free-coins-on-dance-off-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_off00003403.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3403 22660 bytes
SHA-256: 2da20a868900c33669cb04293f5b147288aea163686729e42351c1b2d58329ae
font_01_sfnt_off000066a5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x66A5 18716 bytes
SHA-256: ae86725dd70d168e8b5a24377d7effb3bd88f81667aa3e091abc0f5759eb354b

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