Malicious PDF — malware analysis report

Static analysis result for SHA-256 10688d821d860ae0…

MALICIOUS

PDF

33.8 KB Created: 2021-06-30 19:19:15 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 9b54f3724068d02385a6b222b7fc6fbf SHA-1: 9878edd92f266a9f2071dad5658b9798e7e215f6 SHA-256: 10688d821d860ae03a6600b1f77f2e0bcdaafdf011c5813fe1b17dccd124429d
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple embedded URLs and a prominent link within its body text, all related to game hacks and cheats for popular games like Roblox and Coin Master. The heuristic 'PDF_GAME_HACK_REDIRECT_LURE' specifically flags this behavior, indicating a social engineering tactic to trick users into visiting potentially harmful sites. The ML classifier also strongly indicates maliciousness.

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/free-script-injector-roblox-game-hack PDF link annotation
    • http://library.apsidoarjo.ac.id/repository/roblox-roleplays-free_GM431946152.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id/repository/coin-master-hack-ios-download_GM406889139.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id/repository/roblox-slaying-simulator-level-hack_GM431946152.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id//repository/free-coins-coin-master-link-2021_GM406889139.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id//repository/games-that-give-free-robux_GM431946152.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id/repository/what-is-coin-master_GM406889139.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id/repository/roblox-exploits-hacks-arsenal_GM431946152.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id/repository/coin-master-hack-online-no-human-verification_GM406889139.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id//repository/totally-free-coin-master-spins-2021_GM406889139.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id/repository/free-roblox-servers_GM431946152.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id/repository/minecraft-server-free-trial_GM479516143.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id/repository/free-robux-app-2021_GM431946152.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id/repository/hack-client_GM479516143.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id/repository/roblox-jailbreak-hack-apk-download_GM431946152.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id/repository/free-roblox-card-generater_GM431946152.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id/repository/minecraft-bedrock-hacks_GM479516143.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id/repository/roblox-online-free_GM431946152.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id//repository/play-minecraft-free-online-no-download_GM479516143.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id/repository/cheats-pet-simulator-roblox_GM431946152.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id/repository/roblox-bakers-valley-cheats_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_off00002e3e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2E3E 21944 bytes
SHA-256: e72e7194e9cdea94dec93ba0961fbcefb087897ca6ba5e01e988743ddcba96b4
font_01_sfnt_off00005e93.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5E93 19240 bytes
SHA-256: 60f643abb4cc401a5bb401f714e50b573403c0a5ee56a915234eddcf4a7b1a28