Malicious PDF — malware analysis report

Static analysis result for SHA-256 754b23e075bd6d42…

MALICIOUS

PDF

34.0 KB Created: 2021-07-05 02:03:32 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-07
MD5: 25988be274dfbcdb5f9248e6f3fc066f SHA-1: 7b7f0a4ad6ac7799076e2e0055317d01520397e8 SHA-256: 754b23e075bd6d42e0344c13d275dc0055896b49f71d8d32b857155cc61b435a
82 Risk Score

Malware Insights

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

This PDF document contains multiple embedded URLs, with a primary focus on luring users with promises of game hacks and free currency for popular games like Roblox and Coin Master. The heuristic 'PDF_GAME_HACK_REDIRECT_LURE' strongly indicates this malicious intent. The document body and extracted URLs suggest the primary goal is to redirect users to external sites that likely host further malware or phishing content.

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/431946152/how-to-hack-roblox-for-robux-game-hack PDF link annotation
    • http://lib.fisipumt.ac.id/repository/coin-master-free-spin-game_GM406889139.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/free-robux-pin-codes_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/roblox-jailbreak-hack-application-free_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/roblox-how-to-get-free-accses-to-welcome-to-bloxburg_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id//repository/haktuts-coin-master-free-spin-link_GM406889139.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/roblox-bloxburg-house-builders-free_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id//repository/coin-master-hack-mod-apk-unlimited-spin-download_GM406889139.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/acop-roblox-hack_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/robux-adder_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/free-followers-on-tiktok_GM835599320.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/game-guardian-roblox-invisible-hack_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/vide-hacking-for-roblox_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/is-it-possible-to-get-banned-for-cheating-roblox_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/roblox-ss-executor-free-v3rmillion_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id//repository/coin-master-daily-free-spins-and-coins_GM406889139.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/how-to-hack-roblox-with-cheat-engine-prison-life_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/minecraft-free-download-pc_GM479516143.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/how-to-hack-mcpe-master-coins_GM406889139.pdfIn PDF document text
    • http://lib.fisipumt.ac.id//repository/how-to-get-free-things-on-roblox_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/how-to-get-free-doge-mask-in-roblox_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_off00002f5f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2F5F 21920 bytes
SHA-256: 1ce350dfd787ca1ef53d1a249b8ef086a38e29b59b0af15fe67df19dceedb84d
font_01_sfnt_off00005f9f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5F9F 19124 bytes
SHA-256: 9f0d208e26822d6a242fed99df9fbfacecc5a4ec77afd90406185fcaa2ab8822