Malicious PDF — malware analysis report

Static analysis result for SHA-256 24eaf417299a235b…

MALICIOUS

PDF

35.8 KB Created: 2021-07-03 11:15:10 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 8b1d9244f9b4656598362f7b37f9aec3 SHA-1: 02bd49c8aa67152f12bd35d82fa78c144538b3e8 SHA-256: 24eaf417299a235b1f30d42a408399f544eb95fb7302d1409af569acaa187148
82 Risk Score

Malware Insights

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

The PDF document contains a lure for game hacks, specifically mentioning 'Coin Master' and 'Roblox', directing users to external URLs. The primary URL, http://netcdn.tw/app/406889139/www-cheatsk-com-coin-master-hack-game-hack, is identified as a redirector for game hacks. This suggests the document's purpose is to trick users into visiting potentially malicious sites for cheats or generators, which is a common social engineering tactic.

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/www-cheatsk-com-coin-master-hack-game-hack PDF link annotation
    • http://perpus.unpam.ac.id/repository/2021-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://perpus.unpam.ac.id/repository/minecraft-hacks-115-2_GM479516143.pdfIn PDF document text
    • http://perpus.unpam.ac.id/repository/2021-robux-proof-for-free_GM431946152.pdfIn PDF document text
    • http://perpus.unpam.ac.id/repository/roblox-afk-cheat_GM431946152.pdfIn PDF document text
    • http://perpus.unpam.ac.id/repository/coin-master-card-hack-app_GM406889139.pdfIn PDF document text
    • http://perpus.unpam.ac.id/repository/roblox-free-clothes-generator_GM431946152.pdfIn PDF document text
    • http://perpus.unpam.ac.id/repository/free-spins-coin-master-ios-2021_GM406889139.pdfIn PDF document text
    • http://perpus.unpam.ac.id/repository/roblox-www-com_GM431946152.pdfIn PDF document text
    • http://perpus.unpam.ac.id/repository/haktuts-coin-master_GM406889139.pdfIn PDF document text
    • http://perpus.unpam.ac.id/repository/coin-master-hack-apk_GM406889139.pdfIn PDF document text
    • http://perpus.unpam.ac.id/repository/is-there-any-way-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://perpus.unpam.ac.id/repository/how-to-earn-robux-for-free-2021_GM431946152.pdfIn PDF document text
    • http://perpus.unpam.ac.id/repository/coin-master-time-hack-2021_GM406889139.pdfIn PDF document text
    • http://perpus.unpam.ac.id/repository/free-roblox-survival-games_GM431946152.pdfIn PDF document text
    • http://perpus.unpam.ac.id/repository/hack-the-coin-master_GM406889139.pdfIn PDF document text
    • http://perpus.unpam.ac.id/repository/free-robux-no-generator_GM431946152.pdfIn PDF document text
    • http://perpus.unpam.ac.id/repository/coin-master-free-spins-2021_GM406889139.pdfIn PDF document text
    • http://perpus.unpam.ac.id/repository/robuxmatchcom-free-robux_GM431946152.pdfIn PDF document text
    • http://perpus.unpam.ac.id/repository/free-spin-coin-master-2021-link_GM406889139.pdfIn PDF document text
    • http://perpus.unpam.ac.id/repository/will-roblox-be-free-on-ps4_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
font_00_sfnt_off00003251.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3251 23760 bytes
SHA-256: 5af98f94ee71e8de58fb20c3907339c882ca29edde1a8c532d18e7899c09bbbb
font_01_sfnt_off000067ea.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x67EA 18792 bytes
SHA-256: f6c5424fd404eb7be77cdb2ff0fed3c7235147194280ea4c877b3935d22dbc9c

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