Malicious PDF — malware analysis report

Static analysis result for SHA-256 0e68676c5d02cec8…

MALICIOUS

PDF

45.2 KB Created: 2021-06-07 03:00:48 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 36aa65ed6ba0b2d963d1c62ebaa461ac SHA-1: 30cc6e6fccd8e5e2a2e1763f0fea074583d6f1a8 SHA-256: 0e68676c5d02cec84d9d41b902b3c3c66134290386f78e41e86a66055091eebc
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains multiple links to known malicious redirector infrastructure, specifically targeting users with lures related to game hacks and generators. The primary malicious URL identified is https://netcdn.tw/app/431946152/gamecheat-us-roblox-hack-game-hack. While no scripts were explicitly extracted, the PDF structure and embedded URLs strongly indicate a malicious redirection attempt, likely to deliver a second-stage payload or phish for credentials.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9865

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.tw/app/431946152/gamecheat-us-roblox-hack-game-hack In PDF document text
    • https://digilib.stimlog.ac.id/repository/coin-master-free-spins-links-app_GM406889139.pdfIn PDF document text
    • https://digilib.stimlog.ac.id/repository/minecraft-free-download-mac_GM479516143.pdfIn PDF document text
    • https://digilib.stimlog.ac.id/repository/coin-master-free-coins-2021_GM406889139.pdfIn PDF document text
    • https://digilib.stimlog.ac.id/repository/hacker-for-roblox-https-meganz-nfpdms5k-q8b-1b9y_GM431946152.pdfIn PDF document text
    • https://digilib.stimlog.ac.id/repository/coin-master-daily-free-spins-link-today-2021_GM406889139.pdfIn PDF document text
    • http://digilib.stimlog.ac.id/repository/minecraft-book-collection_GM479516143.pdfIn PDF document text
    • http://digilib.stimlog.ac.id/repository/roblox-svg-free_GM431946152.pdfIn PDF document text
    • http://digilib.stimlog.ac.id/repository/how-to-win-free-robux_GM431946152.pdfIn PDF document text
    • https://digilib.stimlog.ac.id/repository/get-free-robux-generator_GM431946152.pdfIn PDF document text
    • https://digilib.stimlog.ac.id/repository/free-coin-master-spins-without-human-verification_GM406889139.pdfIn PDF document text
    • http://digilib.stimlog.ac.id/repository/minecraft-account-hacked_GM479516143.pdfIn PDF document text
    • https://digilib.stimlog.ac.id/repository/roblox-rewards-robux_GM431946152.pdfIn PDF document text
    • https://digilib.stimlog.ac.id/repository/how-to-hack-roblox-to-get-robux_GM431946152.pdfIn PDF document text
    • https://digilib.stimlog.ac.id/repository/free-robux-group-payouts_GM431946152.pdfIn PDF document text
    • https://digilib.stimlog.ac.id/repository/free-premium-roblox_GM431946152.pdfIn PDF document text
    • https://digilib.stimlog.ac.id/repository/25-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • https://digilib.stimlog.ac.id/repository/how-do-you-get-free-robux_GM431946152.pdfIn PDF document text
    • https://digilib.stimlog.ac.id/repository/free-dominus-roblox_GM431946152.pdfIn PDF document text
    • https://digilib.stimlog.ac.id/repository/coin-master-daily-free-spins-link-facebook_GM406889139.pdfIn PDF document text
    • http://digilib.stimlog.ac.id/repository/best-roblox-hacks_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_004_off00005053.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x5053 25824 bytes
SHA-256: 87a7d6ef95bbb0dbd373db0cec19ed2f429b20e9e3796ee9a4489767fdccc5c3
font_01_sfnt_off00008c38.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8C38 18900 bytes
SHA-256: 9cc9872be17f2d3b800948da21e37f1182d3a4ca95552b345e09d7c59e56647b

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