Malicious PDF — malware analysis report

Static analysis result for SHA-256 ebee2e0dc47def4d…

MALICIOUS

PDF

34.6 KB Created: 2021-06-25 11:21:16 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-16
MD5: 5c207ab5422e9ea75883276a4a39c905 SHA-1: 8fd16f45f869c2a9a9a1ea41d032c08e6afb4c1c SHA-256: ebee2e0dc47def4daa447c7b27d05120c9a5b1ccea77522e29a51198e2b19cb9
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to known malicious redirectors, disguised as 'free generators' or 'hacks' for popular games. The document body and heuristics indicate a lure to trick users into clicking these links, which likely lead to further malicious content or downloads. No scripts were extracted, but the embedded URLs and redirector findings strongly suggest a phishing or scam campaign.

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/online-robux-hack-2021-game-hack In PDF document text
    • http://elibrary.perludem.org/repository/free-robux-roblox-codes-2021_GM431946152.pdfIn PDF document text
    • http://www.elibrary.perludem.org/repository/roblox-got-talent-piano-hack_GM431946152.pdfIn PDF document text
    • http://elibrary.perludem.org/repository/robloxheroxyz-free-robux_GM431946152.pdfIn PDF document text
    • http://elibrary.perludem.org//repository/pokemon-go-free-offers_GM1094591345.pdfIn PDF document text
    • http://elibrary.perludem.org/repository/how-to-get-free-spins-on-coin-master-game_GM406889139.pdfIn PDF document text
    • http://www.elibrary.perludem.org/repository/coin-master-hack-spins-free_GM406889139.pdfIn PDF document text
    • http://elibrary.perludem.org/repository/wurst-download_GM479516143.pdfIn PDF document text
    • http://elibrary.perludem.org/repository/free-robux-no-verification-or-survey-100-real_GM431946152.pdfIn PDF document text
    • http://www.elibrary.perludem.org/repository/ways-to-get-free-robux-easy_GM431946152.pdfIn PDF document text
    • http://www.elibrary.perludem.org/repository/roblox-free-play-login_GM431946152.pdfIn PDF document text
    • http://www.elibrary.perludem.org/repository/roblox-fashion-famous-free-game_GM431946152.pdfIn PDF document text
    • http://www.elibrary.perludem.org/repository/roblox-vehicle-simulator-cheat-money_GM431946152.pdfIn PDF document text
    • http://elibrary.perludem.org//repository/coin-master-free-link_GM406889139.pdfIn PDF document text
    • http://elibrary.perludem.org/repository/how-do-you-get-robux-on-roblox-for-free-2021_GM431946152.pdfIn PDF document text
    • http://www.elibrary.perludem.org/repository/how-do-you-get-free-robux-in-jailbreak_GM431946152.pdfIn PDF document text
    • http://www.elibrary.perludem.org/repository/hackaron-roblox_GM431946152.pdfIn PDF document text
    • http://elibrary.perludem.org/repository/coin-master-hack-2021-no-human-verification_GM406889139.pdfIn PDF document text
    • http://www.elibrary.perludem.org/repository/free-games-like-roblox_GM431946152.pdfIn PDF document text
    • http://www.elibrary.perludem.org/repository/comment-stopper-le-hack-sur-roblox-jailbreak_GM431946152.pdfIn PDF document text
    • http://www.elibrary.perludem.org/repository/pop-slots-free-vegas-casino-slots-machine-game-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_off00002f21.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2F21 22696 bytes
SHA-256: 1d6b800303c7395b97026a832d1dd14ee8ab08df665752602f09d2188fdf19f8
font_01_sfnt_off0000615e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x615E 19316 bytes
SHA-256: fd7c0be5a87865cacf31c595fceeef6ee9c43073dc9fd03b4170d50bc4186494