Malicious PDF — malware analysis report

Static analysis result for SHA-256 e4a7611f24aa1bd5…

MALICIOUS

PDF

35.6 KB Created: 2021-06-27 06:43:55 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-15
MD5: 1335481b8529d83ceddcd9ddc5072f66 SHA-1: 114424cc474b59f5d968428cad6bf7d7e59ff9b0 SHA-256: e4a7611f24aa1bd5c8f745099b68dea458eac0d73037dbd5f16e9a0df5520278
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple links that redirect to known malicious infrastructure, specifically designed to lure users into downloading potentially unwanted or malicious software under the guise of game hacks or generators. The document body and heuristics indicate a clear intent to trick users into clicking these links, likely leading to further malware downloads or phishing attempts. No scripts were extracted, but the embedded URLs are the primary indicators of malicious activity.

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/roblox-character-customizer-free-game-hack In PDF document text
    • http://www.elibrary.perludem.org/repository/rbxcity-free-robux_GM431946152.pdfIn PDF document text
    • http://elibrary.perludem.org/repository/coin-master-cheat-codes_GM406889139.pdfIn PDF document text
    • http://elibrary.perludem.org/repository/static-moonactive-net-rewards_GM406889139.pdfIn PDF document text
    • http://elibrary.perludem.org//repository/robloxbux-us-generator_GM431946152.pdfIn PDF document text
    • http://www.elibrary.perludem.org/repository/mcpe-master-hack-unlimited-coins-download_GM406889139.pdfIn PDF document text
    • http://www.elibrary.perludem.org/repository/appbounty-net-free-robux_GM431946152.pdfIn PDF document text
    • http://elibrary.perludem.org//repository/free-coins-coin-master-today_GM406889139.pdfIn PDF document text
    • http://www.elibrary.perludem.org/repository/free-robux-no-human-verification-or-survey-or-download-2021_GM431946152.pdfIn PDF document text
    • http://www.elibrary.perludem.org/repository/get-everything-free-on-roblox_GM431946152.pdfIn PDF document text
    • http://www.elibrary.perludem.org/repository/roblox-bloxburg-free-money_GM431946152.pdfIn PDF document text
    • http://elibrary.perludem.org/repository/tiradas-coin-master_GM406889139.pdfIn PDF document text
    • http://www.elibrary.perludem.org/repository/minecraft-toys-for-free_GM479516143.pdfIn PDF document text
    • http://www.elibrary.perludem.org/repository/free-roblox-followers_GM431946152.pdfIn PDF document text
    • http://www.elibrary.perludem.org/repository/free-24-7-minecraft-server_GM479516143.pdfIn PDF document text
    • http://www.elibrary.perludem.org/repository/roblox-dragon-adventures-cheat_GM431946152.pdfIn PDF document text
    • http://elibrary.perludem.org/repository/how-to-get-free-skins-in-minecraft_GM479516143.pdfIn PDF document text
    • http://www.elibrary.perludem.org/repository/cheats-for-coin-master_GM406889139.pdfIn PDF document text
    • http://www.elibrary.perludem.org/repository/how-to-get-red-glowing-eyes-in-roblox-for-free_GM431946152.pdfIn PDF document text
    • http://www.elibrary.perludem.org/repository/free-25-dollar-roblox-card_GM431946152.pdfIn PDF document text
    • http://elibrary.perludem.org/repository/you-promised-my-son-free-robux_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_off000031b8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x31B8 22876 bytes
SHA-256: 6b16446e954093fdf88db0ae5b28462dac23b522208ed86dc08ceb4610178229
font_01_sfnt_off000064e2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x64E2 19524 bytes
SHA-256: e6af56d537c4bae8763b65c41de9ec8235002cf5b2e8b840e33da0a192d16273

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