Malicious PDF — malware analysis report

Static analysis result for SHA-256 259ee05a2a220065…

MALICIOUS

PDF

36.8 KB Created: 2021-06-29 07:03:33 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 7e4eeb759c6aaf8ebbe813b270873953 SHA-1: 2c07d3113c6d5c0004f8d01a60a0dd433d2bf419 SHA-256: 259ee05a2a22006559fb4624fc1bb049bc166f6324ae4eda019f72d308dcffde
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/how-to-get-free-robux-in-meep-city-2021-game-hack PDF link annotation
    • http://pustaka.ffarmasi.unand.ac.id/repository/how-do-you-get-free-robux-without-paying_GM431946152.pdfIn PDF document text
    • http://pustaka.ffarmasi.unand.ac.id/repository/free-robux-gift-card-codes-2021_GM431946152.pdfIn PDF document text
    • http://pustaka.ffarmasi.unand.ac.id/repository/get-free-robux-today_GM431946152.pdfIn PDF document text
    • http://pustaka.ffarmasi.unand.ac.id/repository/roblox-land-free-robux_GM431946152.pdfIn PDF document text
    • http://pustaka.ffarmasi.unand.ac.id/repository/roblox-whatever-floats-your-boat-hack_GM431946152.pdfIn PDF document text
    • http://pustaka.ffarmasi.unand.ac.id/repository/dungeon-quest-roblox-item-hack_GM431946152.pdfIn PDF document text
    • http://pustaka.ffarmasi.unand.ac.id/repository/minecraft-fly-hack_GM479516143.pdfIn PDF document text
    • http://pustaka.ffarmasi.unand.ac.id/repository/free-accounts-on-roblox-that-have-robux_GM431946152.pdfIn PDF document text
    • http://pustaka.ffarmasi.unand.ac.id/repository/all-roblox-games-you-can-hack-with-proxo_GM431946152.pdfIn PDF document text
    • http://pustaka.ffarmasi.unand.ac.id/repository/free-roblox-shirt-girl_GM431946152.pdfIn PDF document text
    • http://pustaka.ffarmasi.unand.ac.id/repository/roblox-hack-download_GM431946152.pdfIn PDF document text
    • http://pustaka.ffarmasi.unand.ac.id/repository/best-free-minecraft-server-hosting_GM479516143.pdfIn PDF document text
    • http://pustaka.ffarmasi.unand.ac.id/repository/free-robux-irobux_GM431946152.pdfIn PDF document text
    • http://pustaka.ffarmasi.unand.ac.id/repository/how-to-hack-rabbit-simulaator-2-on-roblox_GM431946152.pdfIn PDF document text
    • http://pustaka.ffarmasi.unand.ac.id/repository/minecraft-pocket-edition-free-ios_GM479516143.pdfIn PDF document text
    • http://pustaka.ffarmasi.unand.ac.id/repository/download-roblox-on-ps4-free_GM431946152.pdfIn PDF document text
    • http://pustaka.ffarmasi.unand.ac.id/repository/roblox-cheat-remove-hair_GM431946152.pdfIn PDF document text
    • http://pustaka.ffarmasi.unand.ac.id/repository/free-roblox-exploit-scripts_GM431946152.pdfIn PDF document text
    • http://pustaka.ffarmasi.unand.ac.id/repository/epic-mini-games-cheats-on-roblox_GM431946152.pdfIn PDF document text
    • http://pustaka.ffarmasi.unand.ac.id/repository/free-robux-come_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_off00003575.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3575 22600 bytes
SHA-256: ce53ae999e10a99350f39bba81a4ccf74dacb2d7ce6f7a71a35eef1d9b558cfc
font_01_sfnt_off000067c9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x67C9 20056 bytes
SHA-256: f6d250da460d885b7f5e9c4c9cbd73c125d3bc6d09f74c0a4f9020bd1b2be75c

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