Malicious PDF — malware analysis report

Static analysis result for SHA-256 e808d19f01cbeb39…

MALICIOUS

PDF

36.2 KB Created: 2021-06-18 02:19:41 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 8b5cd2b8a163a36d1ad1c437da36cf6f SHA-1: 0e43a3837419b24b2bd670cab4101f85c7f4116f SHA-256: e808d19f01cbeb39dae79f2f188eb44787532ea03601234bb6b4cc303bb62c46
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links to a known malicious redirector, masquerading as a generator for in-game currency (Robux) or game hacks. The document body and embedded URLs strongly suggest a phishing or scam attempt designed to trick users into visiting malicious sites. While no scripts were explicitly extracted, the PDF structure and heuristic firings indicate malicious intent, likely leading to further compromise.

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/robux-generator-free-no-survey-or-download-game-hack In PDF document text
    • https://trustindoutama.com/assets/CKImages/files/robux-fun-hack_GM431946152.pdfIn PDF document text
    • https://trustindoutama.com/assets/CKImages/files/how-to-make-a-minecraft-client_GM479516143.pdfIn PDF document text
    • https://trustindoutama.com/assets/CKImages/files/free-robux-obby-limited-time-only-2021_GM431946152.pdfIn PDF document text
    • https://trustindoutama.com/assets/CKImages/files/pig-master-coin-master-free-spin_GM406889139.pdfIn PDF document text
    • https://trustindoutama.com/assets/CKImages/files/how-to-get-free-robux-in-2021_GM431946152.pdfIn PDF document text
    • https://trustindoutama.com/assets/CKImages/files/minecraft-pe-hack-client_GM479516143.pdfIn PDF document text
    • https://trustindoutama.com/assets/CKImages/files/how-to-get-free-robux-easy-no-download_GM431946152.pdfIn PDF document text
    • https://trustindoutama.com/assets/CKImages/files/cheats-for-roblox-bee-swarm-simulator_GM431946152.pdfIn PDF document text
    • https://trustindoutama.com/assets/CKImages/files/free-100-robux_GM431946152.pdfIn PDF document text
    • https://trustindoutama.com/assets/CKImages/files/free-minecraft-client_GM479516143.pdfIn PDF document text
    • https://trustindoutama.com/assets/CKImages/files/free-coins-for-coin-master_GM406889139.pdfIn PDF document text
    • https://trustindoutama.com/assets/CKImages/files/link-coin-master_GM406889139.pdfIn PDF document text
    • https://trustindoutama.com/assets/CKImages/files/roblox-group-free-robux_GM431946152.pdfIn PDF document text
    • https://trustindoutama.com/assets/CKImages/files/coin-master-hack-mod-apk-free-download_GM406889139.pdfIn PDF document text
    • https://trustindoutama.com/assets/CKImages/files/roblox-com-free-robux_GM431946152.pdfIn PDF document text
    • https://trustindoutama.com/assets/CKImages/files/minecraft-free-apk-download-016-0_GM479516143.pdfIn PDF document text
    • https://trustindoutama.com/assets/CKImages/files/free-robux-no-verification-no-download-2021_GM431946152.pdfIn PDF document text
    • https://trustindoutama.com/assets/CKImages/files/game-coin-master-hack_GM406889139.pdfIn PDF document text
    • https://trustindoutama.com/assets/CKImages/files/hacker-song-roblox_GM431946152.pdfIn PDF document text
    • https://trustindoutama.com/assets/CKImages/files/robux-gratis_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
stream_002_off00003311.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x3311 23072 bytes
SHA-256: 21f734effbf9f9223103ddd31a39431ec4dcbf2addafc192d4014b75c80c24d0
font_01_sfnt_off00006705.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6705 19508 bytes
SHA-256: aa7eb6bffbc8c8b66e81903f4777623bf05b660b7a5cbf450e81693b0b356524

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