Malicious PDF — malware analysis report

Static analysis result for SHA-256 5ecd440d0fc5ef68…

MALICIOUS

PDF

34.3 KB Created: 2021-06-29 17:57:43 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-05
MD5: 14e424590c494752e17875ab8c7adf18 SHA-1: fb697b7e4f93c2984c8990a577eb8358b081349c SHA-256: 5ecd440d0fc5ef68854008bb4e30b388a3064704cb0ce40f36e8c70bb290b9c7
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF document contains a lure related to game hacks and generators, directing users to a suspicious URL. The ML classifier strongly flagged this PDF as malicious, and the presence of external URIs further supports a malicious intent. The document's purpose appears to be redirecting users to potentially harmful content or downloads.

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-got-talent-cheat-game-hack PDF link annotation
    • http://lib.stimykpn.ac.id/repository/free-stuff-on-roblox-catalog-2021_GM431946152.pdfIn PDF document text
    • http://lib.stimykpn.ac.id/repository/roblox-spamming-hack-2021_GM431946152.pdfIn PDF document text
    • http://lib.stimykpn.ac.id/repository/roblox-hack-no-human-verification-safe_GM431946152.pdfIn PDF document text
    • http://lib.stimykpn.ac.id//repository/how-to-get-free-roblox-gift-cards_GM431946152.pdfIn PDF document text
    • http://lib.stimykpn.ac.id//repository/smart-lodhi-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://lib.stimykpn.ac.id//repository/coin-master-free-coins-and-spins_GM406889139.pdfIn PDF document text
    • http://lib.stimykpn.ac.id/repository/roblox-cheatszip-file-size-813-kb-md5-value-94bfbfb41eba4e2021202111f2021f6_GM431946152.pdfIn PDF document text
    • http://lib.stimykpn.ac.id/repository/coin-master-free-spin-and-coin-link-app_GM406889139.pdfIn PDF document text
    • http://lib.stimykpn.ac.id/repository/free-robux-generator-2021-download_GM431946152.pdfIn PDF document text
    • http://lib.stimykpn.ac.id//repository/free-spins-and-coins-coin-master_GM406889139.pdfIn PDF document text
    • http://lib.stimykpn.ac.id/repository/roblox-free-robux-free-hack_GM431946152.pdfIn PDF document text
    • http://lib.stimykpn.ac.id/repository/cpbildco-robux_GM431946152.pdfIn PDF document text
    • http://lib.stimykpn.ac.id/repository/roblox-dragon-ball-online-cheat-codes_GM431946152.pdfIn PDF document text
    • http://lib.stimykpn.ac.id/repository/cheat-roblox-vicule_GM431946152.pdfIn PDF document text
    • http://lib.stimykpn.ac.id/repository/volt-hack-script-roblox_GM431946152.pdfIn PDF document text
    • http://lib.stimykpn.ac.id/repository/zoo-tycoon-cheat-codes-roblox_GM431946152.pdfIn PDF document text
    • http://lib.stimykpn.ac.id/repository/robux-obby-that-acyualy-give-free-robux_GM431946152.pdfIn PDF document text
    • http://lib.stimykpn.ac.id//repository/100-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://lib.stimykpn.ac.id/repository/hack-mm2-roblox_GM431946152.pdfIn PDF document text
    • http://lib.stimykpn.ac.id/repository/como-robar-cuentas-de-roblox-con-hacks_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_off00003105.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3105 22292 bytes
SHA-256: 3abf5f8596bfc21513b7a36ebcfdbe62573f2d1fbc37fc825fac3ec1546ba0d2
font_01_sfnt_off000061ee.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x61EE 18756 bytes
SHA-256: 8467f47c7c7dabc3f07ff255a4906868ea97c73f6382d7f34b4f4478db5d9e2a

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