Malicious PDF — malware analysis report

Static analysis result for SHA-256 6cea9f3c45ce8634…

MALICIOUS

PDF

35.2 KB Created: 2021-06-30 03:02:40 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-27
MD5: cbfc13022355443ac68d5abf951499b2 SHA-1: e28740dac945e40471fe774fb56f52dc91b8d0da SHA-256: 6cea9f3c45ce8634da85fc7e0b0a90224b3a19e09a6536a76c38df6d653ca1ec
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a lure for game hacks and redirects to known malicious infrastructure. The document body explicitly mentions "How To Hack The Hood Roblox" and "CLICK HERE TO ACCESS ROBUX GENERATOR", reinforcing the social engineering aspect. While no scripts were extracted, the PDF structure and embedded URLs strongly indicate a phishing or scam attempt designed to redirect users to potentially harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector critical 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. CRITICAL on its own: the /app/<id>/<slug>-game-hack path shape is unambiguous scam infra, and the host rotates so a host-list match can't be relied on.
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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
  • 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-hack-the-hood-roblox-game-hack In PDF document text
    • http://library.atim.ac.id/repository/free-school-games-roblox_GM431946152.pdfIn PDF document text
    • http://library.atim.ac.id/repository/coin-master-free-spins-app-android_GM406889139.pdfIn PDF document text
    • http://library.atim.ac.id/repository/free-robux-2021-irobux_GM431946152.pdfIn PDF document text
    • http://library.atim.ac.id/repository/how-to-get-minecraft-realms-for-free_GM479516143.pdfIn PDF document text
    • http://library.atim.ac.id/repository/near-pubg-uc-code_GM1330123889.pdfIn PDF document text
    • http://library.atim.ac.id/repository/get-free-robux-info_GM431946152.pdfIn PDF document text
    • http://library.atim.ac.id/repository/how-to-become-free-robux_GM431946152.pdfIn PDF document text
    • http://library.atim.ac.id/repository/roblox-hack-generator-no-verification_GM431946152.pdfIn PDF document text
    • http://library.atim.ac.id/repository/how-to-hack-free-robux-2021_GM431946152.pdfIn PDF document text
    • http://library.atim.ac.id/repository/free-robux-call_GM431946152.pdfIn PDF document text
    • http://library.atim.ac.id/repository/free-robux-codes-2021-september_GM431946152.pdfIn PDF document text
    • http://library.atim.ac.id/repository/free-robux-no-need-to-do-anything_GM431946152.pdfIn PDF document text
    • http://library.atim.ac.id/repository/roblox-name-for-free-gun_GM431946152.pdfIn PDF document text
    • http://library.atim.ac.id/repository/how-to-fly-hack-in-roblox-tower-of-hell_GM431946152.pdfIn PDF document text
    • http://library.atim.ac.id/repository/free-roblox-accounts-crack_GM431946152.pdfIn PDF document text
    • http://library.atim.ac.id/repository/free-robux-real-2021_GM431946152.pdfIn PDF document text
    • http://library.atim.ac.id/repository/synapse-hack-roblox-anti-ban_GM431946152.pdfIn PDF document text
    • http://library.atim.ac.id/repository/coin-master-free-spins-and-coins-blogspot_GM406889139.pdfIn PDF document text
    • http://library.atim.ac.id/repository/robux-xyz_GM431946152.pdfIn PDF document text
    • http://library.atim.ac.id/repository/free-coins-spins-on-coin-master_GM406889139.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_off0000324b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x324B 22380 bytes
SHA-256: 65da21fcd994cab7329b73f23f11305afe44d06c143e3f653c44c7095c523ea2
font_01_sfnt_off00006408.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6408 19160 bytes
SHA-256: 1be88b64a8b39caf28e382c817683ab71ad3cd35af839874e2f6240fe5c7be30

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