Malicious PDF — malware analysis report

Static analysis result for SHA-256 8ae1c198faf144c1…

MALICIOUS

PDF

35.9 KB Created: 2021-06-29 05:16:21 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: c3fe1257bfa5534d27315b415808726d SHA-1: 20b6573dd429d1415bdfcb9a5e7041cee565f311 SHA-256: 8ae1c198faf144c16ed740354fe23dedc3d12cf3eb8733309d30a66e40c050cb
82 Risk Score

Malware Insights

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

The PDF document contains a lure for a 'free generator / game hack' which redirects to a malicious URL. The ML classifier also flagged this PDF as malicious. The presence of multiple links to similar scam content suggests a phishing or social engineering attempt to trick users into downloading potentially harmful files.

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/hack-zombi-rush-roblox-game-hack PDF link annotation
    • https://ourlady-elearning.com/userfiles/files/roblox-gift-card-free-codes_GM431946152.pdfIn PDF document text
    • https://ourlady-elearning.com/userfiles/files/roblox-catalog-free_GM431946152.pdfIn PDF document text
    • https://ourlady-elearning.com/userfiles/files/rape-simulator_GM431946152.pdfIn PDF document text
    • https://ourlady-elearning.com/userfiles/files/free-robux-codes-no-survey-2021_GM431946152.pdfIn PDF document text
    • https://ourlady-elearning.com/userfiles/files/get-free-robux-today_GM431946152.pdfIn PDF document text
    • https://ourlady-elearning.com/userfiles/files/free-roblox-accounts-with-robux-that-work-2021_GM431946152.pdfIn PDF document text
    • https://ourlady-elearning.com/userfiles/files/roblox-hair-for-free_GM431946152.pdfIn PDF document text
    • https://ourlady-elearning.com/userfiles/files/free-robux-generator-no-human-verification-2021_GM431946152.pdfIn PDF document text
    • https://ourlady-elearning.com/userfiles/files/free-coins--spins-coin-master_GM406889139.pdfIn PDF document text
    • https://ourlady-elearning.com/userfiles/files/como-conseguir-robux-hack_GM431946152.pdfIn PDF document text
    • https://ourlady-elearning.com/userfiles/files/minecraft-pe-free-ios_GM479516143.pdfIn PDF document text
    • https://ourlady-elearning.com/userfiles/files/mcpe_GM479516143.pdfIn PDF document text
    • https://ourlady-elearning.com/userfiles/files/how-to-get-free-robux-fast-and-easy_GM431946152.pdfIn PDF document text
    • https://ourlady-elearning.com/userfiles/files/minecraft-build-hacks_GM479516143.pdfIn PDF document text
    • https://ourlady-elearning.com/userfiles/files/free-spins-for-coin-master-2021_GM406889139.pdfIn PDF document text
    • https://ourlady-elearning.com/userfiles/files/free-robux-pastebin_GM431946152.pdfIn PDF document text
    • https://ourlady-elearning.com/userfiles/files/how-do-i-get-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • https://ourlady-elearning.com/userfiles/files/haktuts-coin-master-free-spin-link_GM406889139.pdfIn PDF document text
    • https://ourlady-elearning.com/userfiles/files/free-spin-app-coin-master_GM406889139.pdfIn PDF document text
    • https://ourlady-elearning.com/userfiles/files/get-minecraft-windows-10-free_GM479516143.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_off00003477.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3477 22428 bytes
SHA-256: 6e0c769508d8bb4d905b84a2138da2f1c8bd7f3a32db2a95df9060450819ed2f
font_01_sfnt_off00006656.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6656 19436 bytes
SHA-256: 9bba2de6b595d5138f65c332b6724b956f0a4785e84243da0bc8ef732d04735f

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