Malicious PDF — malware analysis report

Static analysis result for SHA-256 e3bb2e24e77d8f33…

MALICIOUS

PDF

49.2 KB Created: 2021-06-07 14:38:13 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 89ef87daea1d84f58810dacf678637e6 SHA-1: edd3d3f6018367c968c041f3c3d2443734e9c569 SHA-256: e3bb2e24e77d8f33558e88067c4e021f864fa67660e047b1f9f27b7246920459
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document employs a lure of game hacks and cheats to entice users. It contains multiple links, including one to a known malicious redirector infrastructure at `https://netcdn.tw/app/431946152/roblox-game-studio-unblocked-cheats-download-guide-unofficialchala-dar-2021-game-hack`. The document body and heuristics indicate a clear intent to redirect users to potentially harmful content, likely for further exploitation or malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9796

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 https://netcdn.tw/app/431946152/roblox-game-studio-unblocked-cheats-download-guide-unofficialchala-dar-2021-game-hack In PDF document text
    • http://ofthalmiatrosthess.gr/images/pokemon-go-free-weekly-remote-raid-pass_GM1094591345.pdfIn PDF document text
    • http://ofthalmiatrosthess.gr/images/coin-master-2021-free-spins-link-today_GM406889139.pdfIn PDF document text
    • http://ofthalmiatrosthess.gr/images/roblox-cheat-codes_GM431946152.pdfIn PDF document text
    • http://ofthalmiatrosthess.gr/images/minecraft-apk-download-free-11-055_GM479516143.pdfIn PDF document text
    • http://ofthalmiatrosthess.gr/images/static-moonactive-net-link_GM406889139.pdfIn PDF document text
    • http://ofthalmiatrosthess.gr/images/how-to-get-free-robux-easy-2021_GM431946152.pdfIn PDF document text
    • http://ofthalmiatrosthess.gr/images/coin-master-claim-free-spins_GM406889139.pdfIn PDF document text
    • http://ofthalmiatrosthess.gr/images/roblox-mobile-hack_GM431946152.pdfIn PDF document text
    • http://ofthalmiatrosthess.gr/images/coin-master-cheat-engine-hack_GM406889139.pdfIn PDF document text
    • http://ofthalmiatrosthess.gr/images/haktuts-coin-master-free-spin-link-today_GM406889139.pdfIn PDF document text
    • http://ofthalmiatrosthess.gr/images/master-coin-free-spin_GM406889139.pdfIn PDF document text
    • http://ofthalmiatrosthess.gr/images/coin-master-free-coins-facebook_GM406889139.pdfIn PDF document text
    • http://ofthalmiatrosthess.gr/images/websites-for-free-robux-without-human-verification_GM431946152.pdfIn PDF document text
    • http://ofthalmiatrosthess.gr/images/robux-matchcomfree-robux_GM431946152.pdfIn PDF document text
    • http://ofthalmiatrosthess.gr/images/get-free-robux-com_GM431946152.pdfIn PDF document text
    • http://ofthalmiatrosthess.gr/images/coin-master-daily-free-spins-link_GM406889139.pdfIn PDF document text
    • http://ofthalmiatrosthess.gr/images/minecraft-pe-hack-client_GM479516143.pdfIn PDF document text
    • http://ofthalmiatrosthess.gr/images/get-me-robux_GM431946152.pdfIn PDF document text
    • http://ofthalmiatrosthess.gr/images/safe-hack-for-coin-master-android_GM406889139.pdfIn PDF document text
    • http://ofthalmiatrosthess.gr/images/promo-codes-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005212.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5212 25152 bytes
SHA-256: 1d7ff0fd799e678646489ddf34387eec4aa3307292b6b280970451684004a299
font_01_sfnt_off00008b58.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8B58 5696 bytes
SHA-256: 450e3ee45915afe13702bf1d587eb8b9ad88a8d2113419ac9f2fd116a828e139
font_02_sfnt_off0000986a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x986A 20068 bytes
SHA-256: fd5d41fcf2671187ee94b5198d2e41aaf769b85463caddf046ba4e732d386633

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