Malicious PDF — malware analysis report

Static analysis result for SHA-256 ac2d263e97442206…

MALICIOUS

PDF

35.1 KB Created: 2021-06-29 13:07:54 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-18
MD5: a8ee142e49c1330c80267dc865d46f8b SHA-1: abe31fb71da2d2b03aac916cee0e510a7cc28862 SHA-256: ac2d263e97442206d49e2af26bb45ec3fa048a7e5a3e9c620d8f5c0465aaf0a3
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

This PDF document employs a common lure of offering game hacks and free currency for popular games like Roblox. The embedded links, such as 'http://netcdn.co/app/431946152/roblox-with-cheat-engine-game-hack', likely lead to the download of a secondary malicious payload. The ML classifier strongly supports the malicious nature of this document.

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/roblox-with-cheat-engine-game-hack PDF link annotation
    • http://lib.stimykpn.ac.id/repository/coinmaster-rewards_GM406889139.pdfIn PDF document text
    • http://lib.stimykpn.ac.id/repository/hack-para-zombie-rush-roblox_GM431946152.pdfIn PDF document text
    • http://lib.stimykpn.ac.id/repository/how-to-get-free-robux-2021-auto-redeem_GM431946152.pdfIn PDF document text
    • http://lib.stimykpn.ac.id/repository/hack-murder-mystery-roblox_GM431946152.pdfIn PDF document text
    • http://lib.stimykpn.ac.id/repository/gun-hacks-for-roblox-2021_GM431946152.pdfIn PDF document text
    • http://lib.stimykpn.ac.id/repository/free-robux-cards_GM431946152.pdfIn PDF document text
    • http://lib.stimykpn.ac.id/repository/roblox-change-your-username-for-free_GM431946152.pdfIn PDF document text
    • http://lib.stimykpn.ac.id/repository/hacked-my-instagram-roblox-id_GM431946152.pdfIn PDF document text
    • http://lib.stimykpn.ac.id/repository/team-panda-free-robux_GM431946152.pdfIn PDF document text
    • http://lib.stimykpn.ac.id//repository/free-robux-com_GM431946152.pdfIn PDF document text
    • http://lib.stimykpn.ac.id//repository/how-to-actually-get-free-robux_GM431946152.pdfIn PDF document text
    • http://lib.stimykpn.ac.id/repository/how-to-hack-roblox-big-brother_GM431946152.pdfIn PDF document text
    • http://lib.stimykpn.ac.id/repository/roblox-hack-adopt-me-2021-codes_GM431946152.pdfIn PDF document text
    • http://lib.stimykpn.ac.id/repository/roblox-exploit-injector-hacks_GM431946152.pdfIn PDF document text
    • http://lib.stimykpn.ac.id/repository/roblox-robux-hack-2021-site_GM431946152.pdfIn PDF document text
    • http://lib.stimykpn.ac.id/repository/coin-master-hack-tool-v1-9-download-free-pc_GM406889139.pdfIn PDF document text
    • http://lib.stimykpn.ac.id//repository/free-minecraft-skin-creator_GM479516143.pdfIn PDF document text
    • http://lib.stimykpn.ac.id//repository/getrobux-now_GM431946152.pdfIn PDF document text
    • http://lib.stimykpn.ac.id/repository/apk-hack-de-roblox_GM431946152.pdfIn PDF document text
    • http://lib.stimykpn.ac.id/repository/free-robux-website-linkmon_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_off00003067.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3067 22932 bytes
SHA-256: d4598ccb1750375fb4cba025e45f63926f952ef85708984f3c3a6597694b7872
font_01_sfnt_off00006403.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6403 19072 bytes
SHA-256: 6091390a67d5a831a8b47db4458ca3e37fbae5acd85722c77d46afe8c5e48fe7