Malicious PDF — malware analysis report

Static analysis result for SHA-256 558245be70e044ba…

MALICIOUS

PDF

35.2 KB Created: 2021-06-19 00:51:12 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: dde100bb390ad1b2fe942e403430f5c6 SHA-1: 6d410f22c371e961de7e427f5de68067b8639411 SHA-256: 558245be70e044baafad625632100e2834b470a9c1a071b44ebd2dd23b575e3a
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links to a known malicious redirector, disguised as a free script executor for Roblox. The document body and embedded URLs strongly suggest a lure for users seeking game cheats or exploits. While no scripts were explicitly extracted, the PDF structure and malicious links indicate an attempt to redirect the user to a potentially harmful site, likely for malware distribution or 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/free-script-executor-roblox-2021-no-virus-free-game-hack In PDF document text
    • https://library.uigm.ac.id/repository/boost9-com-roblox-hack_GM431946152.pdfIn PDF document text
    • https://library.uigm.ac.id/repository/earn-robux-today_GM431946152.pdfIn PDF document text
    • https://library.uigm.ac.id/repository/minecraft-windows-10-edition-unlock-full-game-free_GM479516143.pdfIn PDF document text
    • https://library.uigm.ac.id/repository/how-to-use-roblox-loki-hacks_GM431946152.pdfIn PDF document text
    • https://library.uigm.ac.id/repository/how-to-download-minecraft-for-free-on-mac_GM479516143.pdfIn PDF document text
    • https://library.uigm.ac.id/repository/tiktok-minecraft-hacks_GM479516143.pdfIn PDF document text
    • https://library.uigm.ac.id/repository/minecraft-bedrock-free-download-pc_GM479516143.pdfIn PDF document text
    • https://library.uigm.ac.id/repository/roblox-cheat_GM431946152.pdfIn PDF document text
    • https://library.uigm.ac.id/repository/cheat-codes-for-zoo-tycoon-roblox_GM431946152.pdfIn PDF document text
    • https://library.uigm.ac.id/repository/free-executor-roblox_GM431946152.pdfIn PDF document text
    • https://library.uigm.ac.id/repository/roblox-cheat-table-mm2_GM431946152.pdfIn PDF document text
    • https://library.uigm.ac.id/repository/roblox-lost-cheats_GM431946152.pdfIn PDF document text
    • https://library.uigm.ac.id/repository/earn-roblox-online-free_GM431946152.pdfIn PDF document text
    • https://library.uigm.ac.id/repository/join-this-roblox-group-for-free-robux_GM431946152.pdfIn PDF document text
    • https://library.uigm.ac.id/repository/robux-hack-tools_GM431946152.pdfIn PDF document text
    • https://library.uigm.ac.id/repository/hack-denisdaily-on-roblox_GM431946152.pdfIn PDF document text
    • https://library.uigm.ac.id/repository/free-robux-get-now_GM431946152.pdfIn PDF document text
    • https://library.uigm.ac.id/repository/roblox-jailbreak-hack_GM431946152.pdfIn PDF document text
    • https://library.uigm.ac.id/repository/how-to-get-robux-on-roblox_GM431946152.pdfIn PDF document text
    • https://library.uigm.ac.id/repository/coin-master-mod-free-download_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002f03.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2F03 22868 bytes
SHA-256: fbb4b6efae1e54e9b93b8ba833ac91cbab58767850ae6be0dedea765aa4dbc79
font_01_sfnt_off000062a7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x62A7 19728 bytes
SHA-256: e9fdb957f6b808a500cb7a1b694751d8f0b6cc816ee0ec9f8e570ef7cedf8675

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