Malicious PDF — malware analysis report

Static analysis result for SHA-256 e5f02fb32d3f698e…

MALICIOUS

PDF

43.2 KB Created: 2021-06-04 05:56:41 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 4aefa804bcbbf3ff2ec16447d3d9bf2d SHA-1: 39e168ba558c2746d5b1bab9e1384d97c8d8e9b7 SHA-256: e5f02fb32d3f698ea3f9b09e6bbf05dfc982237c7bc95503b4c2189f7d00c74c
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links to external websites, including one identified as a malicious redirector. The document body and embedded links suggest a lure for game-related cheats or currency, aiming to trick users into visiting these malicious sites. The presence of embedded URLs and the ML classifier's high confidence score indicate a malicious intent to redirect users to potentially harmful content.

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.online/app/406889139/official-coin-master-free-spins-game-hack In PDF document text
    • https://digilib.stimlog.ac.id/repository/roblox-hackers-list_GM431946152.pdfIn PDF document text
    • https://digilib.stimlog.ac.id/repository/coin-master-free-coins-spins_GM406889139.pdfIn PDF document text
    • http://digilib.stimlog.ac.id/repository/get-free-robux-no-verification_GM431946152.pdfIn PDF document text
    • https://digilib.stimlog.ac.id/repository/how-to-get-free-robux-on-roblox_GM431946152.pdfIn PDF document text
    • http://digilib.stimlog.ac.id/repository/how-do-i-get-free-robux_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/free-robux-com-2021_GM431946152.pdfIn PDF document text
    • http://digilib.stimlog.ac.id/repository/is-minecraft-realms-free_GM479516143.pdfIn PDF document text
    • https://digilib.stimlog.ac.id/repository/coin-master-hack-no-human-verification-2021_GM406889139.pdfIn PDF document text
    • http://digilib.stimlog.ac.id/repository/coin-master-free-spins-iphone-2021_GM406889139.pdfIn PDF document text
    • https://digilib.stimlog.ac.id/repository/free-robux-quiz_GM431946152.pdfIn PDF document text
    • https://digilib.stimlog.ac.id/repository/minecraft-diamond-finder-hack_GM479516143.pdfIn PDF document text
    • https://digilib.stimlog.ac.id/repository/krnl-roblox_GM431946152.pdfIn PDF document text
    • https://digilib.stimlog.ac.id/repository/coinmaster-links_GM406889139.pdfIn PDF document text
    • https://digilib.stimlog.ac.id/repository/coin-master-free-spins-1-coin-master_GM406889139.pdfIn PDF document text
    • http://digilib.stimlog.ac.id/repository/real-coin-master-hack-2021_GM406889139.pdfIn PDF document text
    • http://digilib.stimlog.ac.id/repository/roblox-robux_GM431946152.pdfIn PDF document text
    • http://digilib.stimlog.ac.id/repository/best-minecraft-hacked-client-2021_GM479516143.pdfIn PDF document text
    • http://digilib.stimlog.ac.id/repository/free-robux-no-offers_GM431946152.pdfIn PDF document text
    • https://digilib.stimlog.ac.id/repository/blogspot-free-spins-coin-master_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_004_off00004fe8.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4FE8 24604 bytes
SHA-256: dbf303c9d8a8bfab33fa6de5408c5e99da8dffae8bde22ca6fd47bbb1a228b87
font_01_sfnt_off00008757.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8757 17960 bytes
SHA-256: 566edd865edd8744df8e39a8001e850e6dcbcdadb3e6ad7cdaa37e096c94fcb6

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