Malicious PDF — malware analysis report

Static analysis result for SHA-256 01c074a9d434cdbe…

MALICIOUS

PDF

34.6 KB Created: 2021-06-30 01:12:42 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: a77890c59193d4b221a6087d5b0963b9 SHA-1: 5ba40cdaf36a987989e8bbbc1ad34687e96429dc SHA-256: 01c074a9d434cdbe4947773f5113b2230136cae3d1ba5ff6f3d5414bdfe20304
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains numerous links to external resources, with a primary URL pointing to a download for a "how-to-hack-roblox" application. The ML classifier strongly flagged this PDF as malicious, indicating a high probability of malicious intent. The presence of embedded URLs and the document's theme suggest a phishing or social engineering attack aimed at tricking users into downloading potentially harmful software.

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/how-to-hack-roblox-using-tampermonkey-game-hack In PDF document text
    • https://digilib.stimlog.ac.id/repository/robux-cheat-2021_GM431946152.pdfIn PDF document text
    • https://digilib.stimlog.ac.id/repository/roblox-hacker-2021_GM431946152.pdfIn PDF document text
    • https://digilib.stimlog.ac.id/repository/boku-no-roblox-remastered-hacks_GM431946152.pdfIn PDF document text
    • https://digilib.stimlog.ac.id/repository/how-to-become-a-hacker-in-roblox_GM431946152.pdfIn PDF document text
    • https://digilib.stimlog.ac.id/repository/pubg-uc-17_GM1330123889.pdfIn PDF document text
    • https://digilib.stimlog.ac.id/repository/free-robux-no-human-verification-or-survey_GM431946152.pdfIn PDF document text
    • http://digilib.stimlog.ac.id/repository/online-coin-master-free-spin-app_GM406889139.pdfIn PDF document text
    • https://digilib.stimlog.ac.id/repository/buxblast-com-free-robux_GM431946152.pdfIn PDF document text
    • https://digilib.stimlog.ac.id/repository/give-me-free-robux_GM431946152.pdfIn PDF document text
    • http://digilib.stimlog.ac.id/repository/minecraft-dungeons-free_GM479516143.pdfIn PDF document text
    • http://digilib.stimlog.ac.id/repository/fros-digimon-v12-hack-roblox_GM431946152.pdfIn PDF document text
    • https://digilib.stimlog.ac.id/repository/the-coin-master-hack_GM406889139.pdfIn PDF document text
    • https://digilib.stimlog.ac.id/repository/how-to-get-100-free-robux-on-roblox_GM431946152.pdfIn PDF document text
    • http://digilib.stimlog.ac.id/repository/coin-master-free-spins-link-today-new-2021_GM406889139.pdfIn PDF document text
    • https://digilib.stimlog.ac.id/repository/how-to-get-free-robux-easy-pastebin-2021_GM431946152.pdfIn PDF document text
    • https://digilib.stimlog.ac.id/repository/free-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://digilib.stimlog.ac.id/repository/coin-master-free-spins-and-coins_GM406889139.pdfIn PDF document text
    • https://digilib.stimlog.ac.id/repository/how-to-get-followers-on-tiktok-for-free_GM835599320.pdfIn PDF document text
    • http://digilib.stimlog.ac.id/repository/best-roblox-games-with-free-radio_GM431946152.pdfIn PDF document text
    • https://digilib.stimlog.ac.id/repository/how-can-i-get-free-robux_GM431946152.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_off00003189.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3189 21572 bytes
SHA-256: 9041af6fa7dbecd969791eef553a91a3f6c9fa630ffbca1426063146942cb06e
font_01_sfnt_off0000608e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x608E 19556 bytes
SHA-256: d622e9e2289e8a424d2cb9e12a6a5dd5c80296246c3a3069dd99760b411e9e09

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