Malicious PDF — malware analysis report

Static analysis result for SHA-256 a1792da7464025e7…

MALICIOUS

PDF

37.2 KB Created: 2021-07-05 13:32:24 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-07
MD5: 078095cbe12b80fd6a1f1dbb43b101e5 SHA-1: a6eab51214fd015ac4de80be25a0af66101638c5 SHA-256: a1792da7464025e726ae8e84bb826dafa5e67fb9259c53f8c382c42f8c0bd68b
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a lure for game hacks and free spins, directing users to the URL http://netcdn.tw/app/406889139/google-coin-master-free-spins-game-hack. This URL is likely to host a malicious payload or redirect to a phishing site. The ML classifier strongly indicated maliciousness, and the presence of embedded URLs supports a social engineering attack.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector high 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.
  • 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
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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.tw/app/406889139/google-coin-master-free-spins-game-hack PDF link annotation
    • https://library.stikeswnpalu.ac.id/repository/official-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • https://library.stikeswnpalu.ac.id/repository/how-to-get-roblox-for-free-pastebin_GM431946152.pdfIn PDF document text
    • https://library.stikeswnpalu.ac.id/repository/are-robux-generators-safe_GM431946152.pdfIn PDF document text
    • https://library.stikeswnpalu.ac.id/repository/free-robux-hack_GM431946152.pdfIn PDF document text
    • https://library.stikeswnpalu.ac.id/repository/how-to-get-free-robux-advertisement_GM431946152.pdfIn PDF document text
    • https://library.stikeswnpalu.ac.id/repository/roblox-hack-2021-jailbreak_GM431946152.pdfIn PDF document text
    • https://library.stikeswnpalu.ac.id/repository/free-minecraft-wallpaper_GM479516143.pdfIn PDF document text
    • https://library.stikeswnpalu.ac.id/repository/how-to-get-free-robux-no-inspect-element-the-monoley_GM431946152.pdfIn PDF document text
    • https://library.stikeswnpalu.ac.id/repository/can-you-hack-robux_GM431946152.pdfIn PDF document text
    • https://library.stikeswnpalu.ac.id/repository/legit-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • https://library.stikeswnpalu.ac.id/repository/how-to-noclip-in-roblox-cheat-engine-67-2021_GM431946152.pdfIn PDF document text
    • https://library.stikeswnpalu.ac.id/repository/free-robux-picture_GM431946152.pdfIn PDF document text
    • https://library.stikeswnpalu.ac.id/repository/how-to-get-a-free-lamborghini-in-roblox_GM431946152.pdfIn PDF document text
    • https://library.stikeswnpalu.ac.id/repository/cheats-for-jailbreak-on-roblox_GM431946152.pdfIn PDF document text
    • https://library.stikeswnpalu.ac.id/repository/coin-master-free_GM406889139.pdfIn PDF document text
    • https://library.stikeswnpalu.ac.id/repository/how-to-get-minecraft-realms-for-free_GM479516143.pdfIn PDF document text
    • https://library.stikeswnpalu.ac.id/repository/coin-master-free-gift-links-2021_GM406889139.pdfIn PDF document text
    • https://library.stikeswnpalu.ac.id/repository/robux-free-eazy_GM431946152.pdfIn PDF document text
    • https://library.stikeswnpalu.ac.id/repository/coin-master-2021-free-spins-link-today_GM406889139.pdfIn PDF document text
    • https://library.stikeswnpalu.ac.id/repository/coin-master-spin-link-today-2021_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_off00003b37.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3B37 23064 bytes
SHA-256: 0b7348196678d66c8cc2a15534dd57c112f2bfa9992509ecf353f9fae74451ea
font_01_sfnt_off00006f00.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6F00 18248 bytes
SHA-256: 030bed7090460e4d71b0ce795308f81d11b161da8a2958b6b82163bc1faa59de

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