Malicious PDF — malware analysis report

Static analysis result for SHA-256 afe8c13e5472fc42…

MALICIOUS

PDF

34.7 KB Created: 2021-07-05 06:19:41 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-05
MD5: ac524a4d8143e15f9abcea0963b69eb9 SHA-1: 879c6657b07f3a7885d0893c821aa9aec92a3344 SHA-256: afe8c13e5472fc42e23e96598d3e461c1ebb37d217291fa8ebe739c3aa3b0060
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple embedded URLs, with a primary focus on luring users with "free generator / game hack" promises. The heuristic firings indicate that the PDF links to a game hack redirector, suggesting a social engineering tactic to drive traffic to potentially malicious sites. While no scripts were explicitly extracted, the nature of the lures and embedded URLs points towards a phishing or malware distribution attempt.

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/835599320/free-500-tiktok-likes-game-hack PDF link annotation
    • http://lib.smklabor.sch.id/repository/gravity-switch-hack-roblox-2021_GM431946152.pdfIn PDF document text
    • http://lib.smklabor.sch.id/repository/roblox-hack-robux-2021-no-human-verification_GM431946152.pdfIn PDF document text
    • http://lib.smklabor.sch.id/repository/free-roblox-catalog-items-2021_GM431946152.pdfIn PDF document text
    • http://lib.smklabor.sch.id/repository/minecraft-client-download_GM479516143.pdfIn PDF document text
    • http://lib.smklabor.sch.id/repository/free-robux-codes-free_GM431946152.pdfIn PDF document text
    • http://lib.smklabor.sch.id/repository/roblox-counter-blox-roblox-offensive-hack-2021_GM431946152.pdfIn PDF document text
    • http://lib.smklabor.sch.id/repository/any-roblox-game-pass-free-script_GM431946152.pdfIn PDF document text
    • http://lib.smklabor.sch.id/repository/ast-free-robux_GM431946152.pdfIn PDF document text
    • http://lib.smklabor.sch.id/repository/free-robux-tool-no-verification_GM431946152.pdfIn PDF document text
    • http://lib.smklabor.sch.id/repository/hack-web-tools-roblox_GM431946152.pdfIn PDF document text
    • http://lib.smklabor.sch.id/repository/how-to-get-free-robux-easy-on-phone_GM431946152.pdfIn PDF document text
    • http://lib.smklabor.sch.id/repository/coin-master-firebird-card-free_GM406889139.pdfIn PDF document text
    • http://lib.smklabor.sch.id/repository/generator-robux-free-2021_GM431946152.pdfIn PDF document text
    • http://lib.smklabor.sch.id/repository/generador-de-robux-hack_GM431946152.pdfIn PDF document text
    • http://lib.smklabor.sch.id/repository/roblox-hack-8-ball-pool_GM431946152.pdfIn PDF document text
    • http://lib.smklabor.sch.id/repository/arsenal-hacks-roblox-2021_GM431946152.pdfIn PDF document text
    • http://lib.smklabor.sch.id/repository/how-do-u-get-free-robux-on-chromebook_GM431946152.pdfIn PDF document text
    • http://lib.smklabor.sch.id/repository/free-robux-co_GM431946152.pdfIn PDF document text
    • http://lib.smklabor.sch.id/repository/anti-hacking-roblox-names_GM431946152.pdfIn PDF document text
    • http://lib.smklabor.sch.id/repository/is-minecraft-free-on-mac_GM479516143.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_off000032a3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x32A3 22520 bytes
SHA-256: 7bd29c9e105d64f3f5bea520d76d1d18b0e0cb8b594de9ebfb21b6618be2a60c
font_01_sfnt_off000064fb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x64FB 18276 bytes
SHA-256: 49ff13bc796e3850c8af11a62db492c48c5bf7de1661b7834706e3db6e53f066

Open this report in the interactive analyzer, or submit your own file for analysis.