Malicious PDF — malware analysis report

Static analysis result for SHA-256 2578e3d7ef8a61c1…

MALICIOUS

PDF

34.8 KB Created: 2021-07-07 19:08:33 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-13
MD5: 610459f92e8a393f8e509c5d6bb86ad5 SHA-1: 6c177a89d25c5bd0b852e3270283d2e08536d2de SHA-256: 2578e3d7ef8a61c187398768243c986848dc96ca22fb5bdecad5ae7a35f8614e
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple links to known malicious redirector infrastructure, specifically advertising 'free generators' and 'game hacks' for popular games like Roblox. The ML classifier strongly flagged this PDF as malicious. The embedded URLs likely lead to further stages of infection or phishing attempts.

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.tw/app/431946152/roblox-hack-game-hack In PDF document text
    • https://creationegyptco.com/userfiles/files/free-robux-hck_GM431946152.pdfIn PDF document text
    • https://creationegyptco.com/userfiles/files/how-many-free-spin-links-is-there-for-coin-master_GM406889139.pdfIn PDF document text
    • https://creationegyptco.com/userfiles/files/roblox-hack-ga_GM431946152.pdfIn PDF document text
    • https://creationegyptco.com/userfiles/files/free-robux-pastebin-no-wait-2021_GM431946152.pdfIn PDF document text
    • https://creationegyptco.com/userfiles/files/roblox-apk-free-robux_GM431946152.pdfIn PDF document text
    • https://creationegyptco.com/userfiles/files/how-to-get-free-robux-fast_GM431946152.pdfIn PDF document text
    • https://creationegyptco.com/userfiles/files/create-minecraft-server-free_GM479516143.pdfIn PDF document text
    • https://creationegyptco.com/userfiles/files/hack-pin-roblox_GM431946152.pdfIn PDF document text
    • https://creationegyptco.com/userfiles/files/free-robux-generator-no-human-verification_GM431946152.pdfIn PDF document text
    • https://creationegyptco.com/userfiles/files/tiktok-free-fans_GM835599320.pdfIn PDF document text
    • https://creationegyptco.com/userfiles/files/how-to-get-free-roebucks-on-roblox_GM431946152.pdfIn PDF document text
    • https://creationegyptco.com/userfiles/files/coin-master-free-stuff_GM406889139.pdfIn PDF document text
    • https://creationegyptco.com/userfiles/files/best-way-to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://creationegyptco.com/userfiles/files/execute-freerobux_GM431946152.pdfIn PDF document text
    • https://creationegyptco.com/userfiles/files/coin-master-hack-cheat-generator-coins-and-spins-unlimited_GM406889139.pdfIn PDF document text
    • https://creationegyptco.com/userfiles/files/wurst-client-112-2_GM479516143.pdfIn PDF document text
    • https://creationegyptco.com/userfiles/files/free-robux-wheel-spin_GM431946152.pdfIn PDF document text
    • https://creationegyptco.com/userfiles/files/pokemon-go-free-647_GM1094591345.pdfIn PDF document text
    • https://creationegyptco.com/userfiles/files/coin-master-free-spin-and-coin-links_GM406889139.pdfIn PDF document text
    • https://creationegyptco.com/userfiles/files/how-to-get-free-robux-no-human-verification-2021_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000312d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x312D 22748 bytes
SHA-256: 388a2b6702cc52ecb9e3eebda53efbcda0870e5aeddcd63200d878c7990a65e7
font_01_sfnt_off00006439.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6439 18656 bytes
SHA-256: 999563e5ceb90bacb24403d8989521a1fbef177d0399db3bbb86b28fcd553b17

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