Malicious PDF — malware analysis report

Static analysis result for SHA-256 ce9b800d05e8a6ed…

MALICIOUS

PDF

35.0 KB Created: 2021-07-05 10:23:27 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-01
MD5: 1ce77efd82bcfa090776512ec394b4d6 SHA-1: 4b497509823927834fd161c06dec41e69691ce7c SHA-256: ce9b800d05e8a6edc66d3ff5ac1a62dcaab4a557b4e943922b9149a261e856f4
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.tw/app/406889139/coin-master-online-hack-no-survey-no-password-game-hack PDF link annotation
    • https://pustaka.mic.sch.id/repository/free-robux-app-code_GM431946152.pdfIn PDF document text
    • https://pustaka.mic.sch.id/repository/roblox-shadowrun-skip-cheat-codes_GM431946152.pdfIn PDF document text
    • https://pustaka.mic.sch.id//repository/coin-master-link-for-spins_GM406889139.pdfIn PDF document text
    • https://pustaka.mic.sch.id/repository/dbz-rage-roblox-cheats_GM431946152.pdfIn PDF document text
    • https://pustaka.mic.sch.id/repository/flame-roblox-exploit-free_GM431946152.pdfIn PDF document text
    • https://pustaka.mic.sch.id/repository/roblox-avatar-skin-free_GM431946152.pdfIn PDF document text
    • https://pustaka.mic.sch.id/repository/yammy-roblox-hacks_GM431946152.pdfIn PDF document text
    • https://pustaka.mic.sch.id/repository/robux-hack-whith-easy-human-verifacation_GM431946152.pdfIn PDF document text
    • https://pustaka.mic.sch.id/repository/download-for-free-roblox_GM431946152.pdfIn PDF document text
    • https://pustaka.mic.sch.id//repository/static-moonactive-net-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • https://pustaka.mic.sch.id/repository/roblox-jailbreak-hack-noclip-zip-file_GM431946152.pdfIn PDF document text
    • https://pustaka.mic.sch.id/repository/all-roblox-2021-free-tails_GM431946152.pdfIn PDF document text
    • https://pustaka.mic.sch.id/repository/roblox-breaking-point-script-hack_GM431946152.pdfIn PDF document text
    • https://pustaka.mic.sch.id/repository/are-free-roblox-exploit-safe_GM431946152.pdfIn PDF document text
    • https://pustaka.mic.sch.id/repository/free-roblox-new-hood_GM431946152.pdfIn PDF document text
    • https://pustaka.mic.sch.id/repository/roblox-how-to-get-free-robux-on-free-robux-2021_GM431946152.pdfIn PDF document text
    • https://pustaka.mic.sch.id/repository/free-robux-discord-group_GM431946152.pdfIn PDF document text
    • https://pustaka.mic.sch.id/repository/free-robux-wiz_GM431946152.pdfIn PDF document text
    • https://pustaka.mic.sch.id/repository/comment-avoir-des-robux-gratuit-sans-hack_GM431946152.pdfIn PDF document text
    • https://pustaka.mic.sch.id//repository/free-robux-2021-no-human-verification_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
stream_002_off00003107.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x3107 22800 bytes
SHA-256: dbd132dd42e7cba1f7fdbccfe765cead5f5fdc356d29148d77161a89ebee7e23
font_01_sfnt_off0000640c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x640C 19004 bytes
SHA-256: bbe474e09bfdbfb5cef2fcc55a2c8ec1e208b2a0e6ed3978724e3050167952c3

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