Malicious PDF — malware analysis report

Static analysis result for SHA-256 e3232f14d5644d3d…

MALICIOUS

PDF

34.4 KB Created: 2021-06-19 15:10:42 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 24cb6135135268a8a09cda140af6a27c SHA-1: 224eca10098759b457af63128ac73e9b4783dbf6 SHA-256: e3232f14d5644d3d8eeb9b16d0e8a259164ecdd92725f48ad286a4a04f7bcb51
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document was flagged as malicious by an ML classifier. The file routes users through malicious redirector infrastructure and presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.

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.co/app/431946152/list-of-free-robux-codes-game-hack PDF link annotation
    • http://library.yamasi.ac.id//repository/coin-master-hack-2021_GM406889139.pdfIn PDF document text
    • http://library.yamasi.ac.id/repository/haktuts-coin-master-free-spins-2021_GM406889139.pdfIn PDF document text
    • http://library.yamasi.ac.id//repository/coin-master-400-spin-link-hack_GM406889139.pdfIn PDF document text
    • http://library.yamasi.ac.id//repository/get-free-spins-coin-master-link_GM406889139.pdfIn PDF document text
    • http://library.yamasi.ac.id//repository/free-printable-minecraft-coloring-pages_GM479516143.pdfIn PDF document text
    • http://library.yamasi.ac.id//repository/fb-coin-master_GM406889139.pdfIn PDF document text
    • http://library.yamasi.ac.id//repository/2021-free-coin-master-spins_GM406889139.pdfIn PDF document text
    • http://library.yamasi.ac.id//repository/coin-master-email-rewards-link_GM406889139.pdfIn PDF document text
    • http://library.yamasi.ac.id//repository/10-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://library.yamasi.ac.id//repository/tiktok-watch-free-movies_GM835599320.pdfIn PDF document text
    • http://library.yamasi.ac.id/repository/oprewards-robux_GM431946152.pdfIn PDF document text
    • http://library.yamasi.ac.id/repository/robux-websites-2021_GM431946152.pdfIn PDF document text
    • http://library.yamasi.ac.id/repository/robux-free-c_GM431946152.pdfIn PDF document text
    • http://library.yamasi.ac.id/repository/roblox-royale-high-school-diamond-hack_GM431946152.pdfIn PDF document text
    • http://library.yamasi.ac.id//repository/free-robux-reddit_GM431946152.pdfIn PDF document text
    • http://library.yamasi.ac.id//repository/coin-master-32-mod-hack-apk-download_GM406889139.pdfIn PDF document text
    • http://library.yamasi.ac.id/repository/roblox-admin-hack_GM431946152.pdfIn PDF document text
    • http://library.yamasi.ac.id/repository/noob-vs-pro-vs-hacker-roblox-pet-simulator_GM431946152.pdfIn PDF document text
    • http://library.yamasi.ac.id//repository/robux-matchcomfree-robux_GM431946152.pdfIn PDF document text
    • http://library.yamasi.ac.id/repository/coin-master-hack-tool-india_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
font_00_sfnt_off00002fd8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2FD8 22256 bytes
SHA-256: 9110f57fae919911d571bfb8c29556c690587b3f1b6a71fb20180c171bfa9b6b
font_01_sfnt_off00006128.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6128 19112 bytes
SHA-256: 5f972b062c3fd29ad213a5aa983a746e1e08f0193e882a1a7d3e4b771dd08c69

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