Malicious PDF — malware analysis report

Static analysis result for SHA-256 d0e8096e6b7e2128…

MALICIOUS

PDF

33.7 KB Created: 2021-06-20 11:25:06 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-16
MD5: 06c97b285cb8e528e07f67da84a59ffc SHA-1: c24a26c98d0db19d1501a340b1a7a3d201a12314 SHA-256: d0e8096e6b7e2128caf74a2ef184c890b37798010db60ecefd8f2676e3efb960
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links that redirect to malicious infrastructure, specifically promoting 'free generators' or 'hacks' for popular games. The primary redirector URL identified is http://netcdn.co/app/431946152/face-free-roblox-game-hack. This pattern suggests a social engineering lure designed to trick users into visiting potentially harmful sites, likely to download further malware or engage in credential harvesting.

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/face-free-roblox-game-hack In PDF document text
    • http://perpus.stikesphi.ac.id/repository/free-robux-gen_GM431946152.pdfIn PDF document text
    • http://perpus.stikesphi.ac.id/repository/how-to-get-free-gamepass-on-roblox_GM431946152.pdfIn PDF document text
    • http://perpus.stikesphi.ac.id/repository/free-roblox-noob-gameplay_GM431946152.pdfIn PDF document text
    • http://perpus.stikesphi.ac.id/repository/coin-master-hack-2021_GM406889139.pdfIn PDF document text
    • http://perpus.stikesphi.ac.id/repository/free-roblox-gift-card-codes-2021_GM431946152.pdfIn PDF document text
    • http://perpus.stikesphi.ac.id/repository/coin-master-hacks-for-free-spins_GM406889139.pdfIn PDF document text
    • http://perpus.stikesphi.ac.id/repository/tiktok-for-free_GM835599320.pdfIn PDF document text
    • http://perpus.stikesphi.ac.id/repository/how-to-earn-free-robux_GM431946152.pdfIn PDF document text
    • http://perpus.stikesphi.ac.id/repository/free-coin-master-stuff_GM406889139.pdfIn PDF document text
    • http://perpus.stikesphi.ac.id/repository/coin-master-free-spins-link-today-new_GM406889139.pdfIn PDF document text
    • http://perpus.stikesphi.ac.id/repository/free-robux-no-human-verifaction-and-survey_GM431946152.pdfIn PDF document text
    • http://perpus.stikesphi.ac.id/repository/coin-master-blogspot_GM406889139.pdfIn PDF document text
    • http://perpus.stikesphi.ac.id/repository/how-to-buy-robux-for-free_GM431946152.pdfIn PDF document text
    • http://perpus.stikesphi.ac.id/repository/how-to-hack-someone-on-roblox_GM431946152.pdfIn PDF document text
    • http://perpus.stikesphi.ac.id/repository/roblox-promo-codes-robux-free_GM431946152.pdfIn PDF document text
    • http://perpus.stikesphi.ac.id/repository/free-robux-2021-no-human-verification_GM431946152.pdfIn PDF document text
    • http://perpus.stikesphi.ac.id/repository/free-robux-no-verification-or-survey_GM431946152.pdfIn PDF document text
    • http://perpus.stikesphi.ac.id/repository/minecraft-story-mode-free_GM479516143.pdfIn PDF document text
    • http://perpus.stikesphi.ac.id/repository/how-to-get-free-spins-on-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://perpus.stikesphi.ac.id/repository/how-to-make-a-minecraft-client_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_off00002d93.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2D93 22468 bytes
SHA-256: dd9f22448d70815227b606ba67a3d0f7b3616177b588f788c685205f64aae096
font_01_sfnt_off00005fa7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5FA7 18652 bytes
SHA-256: 4c950b100e6136151e341dfc8771c3e966317d933975229e504464a845ab8528

Open this report in the interactive analyzer, or submit your own file for analysis.