Malicious PDF — malware analysis report

Static analysis result for SHA-256 e8b07406305db11d…

MALICIOUS

PDF

33.3 KB Created: 2021-06-29 11:43:31 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 7b0519f55977674b24e792dc4fc99f05 SHA-1: 7c9b7698b430b722dda40cafb559ba2cc5be3d9f SHA-256: e8b07406305db11da7e6f9893d692749adee94a1263f8d562a017176116a237e
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple links, including one to a known malicious redirector infrastructure at http://netcdn.co/app/431946152/free-roblox-combo-list-game-hack. The document body and embedded URLs suggest a lure for game-related cheats or hacks, likely to trick users into downloading further malware or providing credentials. No scripts were extracted from this sample, limiting the analysis of its execution flow.

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/free-roblox-combo-list-game-hack In PDF document text
    • https://perpustakaan.itda.ac.id/repository/robux-hack-com-2021_GM431946152.pdfIn PDF document text
    • https://perpustakaan.itda.ac.id/repository/bleach-roblox-hack-soul-persona_GM431946152.pdfIn PDF document text
    • https://perpustakaan.itda.ac.id/repository/free-coin-master-spins-link_GM406889139.pdfIn PDF document text
    • https://perpustakaan.itda.ac.id/repository/roblox-wikipedia-2021-hack_GM431946152.pdfIn PDF document text
    • https://perpustakaan.itda.ac.id/repository/enter-the-code-to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://perpustakaan.itda.ac.id/repository/check-cashed-roblox-hack_GM431946152.pdfIn PDF document text
    • https://perpustakaan.itda.ac.id/repository/free-minecraft-worlds_GM479516143.pdfIn PDF document text
    • https://perpustakaan.itda.ac.id/repository/earn-free-roblox-gift-cards-legits_GM431946152.pdfIn PDF document text
    • https://perpustakaan.itda.ac.id/repository/microsoft-rewards-roblox_GM431946152.pdfIn PDF document text
    • https://perpustakaan.itda.ac.id/repository/coin-master-60-spins_GM406889139.pdfIn PDF document text
    • https://perpustakaan.itda.ac.id/repository/robux-online_GM431946152.pdfIn PDF document text
    • https://perpustakaan.itda.ac.id/repository/como-hackear-coin-master_GM406889139.pdfIn PDF document text
    • https://perpustakaan.itda.ac.id/repository/toolbox-for-minecraft-pe-mod-apk_GM479516143.pdfIn PDF document text
    • https://perpustakaan.itda.ac.id/repository/critical-strike-hacks-roblox_GM431946152.pdfIn PDF document text
    • https://perpustakaan.itda.ac.id/repository/how-to-make-a-modded-minecraft-server-for-free_GM479516143.pdfIn PDF document text
    • https://perpustakaan.itda.ac.id/repository/comment-utiliser-hack-book-one-piece-roblox-quelle-touche_GM431946152.pdfIn PDF document text
    • https://perpustakaan.itda.ac.id/repository/free-robux-ad_GM431946152.pdfIn PDF document text
    • https://perpustakaan.itda.ac.id/repository/cheats-fr-roblox_GM431946152.pdfIn PDF document text
    • https://perpustakaan.itda.ac.id/repository/roblox-free-robux-by-watching-ads_GM431946152.pdfIn PDF document text
    • https://perpustakaan.itda.ac.id/repository/free-robot-animation-roblox_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_off00002e15.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2E15 21384 bytes
SHA-256: ff5456cbd7b8c8df591dc45d07733bdb6b90fc48e53e153a4a30e0fbb56e0721
font_01_sfnt_off00005cef.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5CEF 19132 bytes
SHA-256: 927ddadbbc83bde86a32299ca2296efe8fc5b0e3387a4cbd03895c883b976b6d

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