Malicious PDF — malware analysis report

Static analysis result for SHA-256 7e8e367a20fb996b…

MALICIOUS

PDF

37.1 KB Created: 2021-05-23 19:37:16 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 0b8dfe388b32626ea32096121e725eda SHA-1: 6df9b2a7d89a15d8d23d5db074c06a60d940b967 SHA-256: 7e8e367a20fb996b3386c76ef48f1c5ae90ceb546bd85d14e63d4e2d4f585ed0
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF contains multiple links to known malicious redirectors and lures users with promises of game hacks and generators, such as 'Roblox Mobile Hack'. The document body explicitly contains the call to action 'CLICK HERE TO ACCESS ROBLOX GENERATOR' and directs users to URLs that are flagged as malicious. The presence of embedded URLs and the ML classifier's high confidence score indicate a malicious intent to redirect users to potentially harmful content or download further malware.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9447

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.xyz/app/431946152/roblox-mobile-hack-game-hack In PDF document text
    • http://optiquedelavaunage.com/images/minecraft-apk-android-free_GM479516143.pdfIn PDF document text
    • http://optiquedelavaunage.com/images/coin-master-free-spins-link-2021_GM406889139.pdfIn PDF document text
    • http://optiquedelavaunage.com/images/how-to-hack-people-on-roblox_GM431946152.pdfIn PDF document text
    • http://optiquedelavaunage.com/images/make-free-robux_GM431946152.pdfIn PDF document text
    • http://optiquedelavaunage.com/images/coin-master-15-free-spin-link-of-last-5-days_GM406889139.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_off0000360d.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x360D 24952 bytes
SHA-256: 45958ea647f64966a401390b7e8e1039be96a92d204fd5b11401539a90d566a9
font_01_sfnt_off00006f3d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6F3D 18500 bytes
SHA-256: e5e44b7d88d65c0aa39187413bdce35fa7eb26b841b7c8af9c826d312b99eefc

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