Malicious PDF — malware analysis report

Static analysis result for SHA-256 4d336f341b237453…

MALICIOUS

PDF

33.8 KB Created: 2021-07-05 21:53:34 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-07
MD5: 9e6042bf0102dd966efbbbd38dbfa2aa SHA-1: 038f69ce8cd7b30de63ee2bdced59cc75103dd3a SHA-256: 4d336f341b237453b27e39cc7a4e544b6ecf09c56c5b2b0e4d70262557021652
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document employs a lure related to game hacks and free currency to entice users to click on embedded links. The primary link, http://netcdn.tw/app/431946152/10-robux-game-hack, is identified as a high-risk redirector. While no scripts were explicitly extracted, the PDF structure and embedded URLs suggest a malicious intent to redirect users to potentially harmful content or download further malware.

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/431946152/10-robux-game-hack PDF link annotation
    • http://psb.sd-alazhar29.sch.id/repository/roblox-apocalypse-rising-speed-hack-2021_GM431946152.pdfIn PDF document text
    • http://psb.sd-alazhar29.sch.id/repository/free-robux-now_GM431946152.pdfIn PDF document text
    • http://psb.sd-alazhar29.sch.id/repository/cute-drawings-roblox-for-free_GM431946152.pdfIn PDF document text
    • http://psb.sd-alazhar29.sch.id/repository/how-to-get-free-money-roblox-vehicle-simulator_GM431946152.pdfIn PDF document text
    • http://psb.sd-alazhar29.sch.id/repository/free-roblox-accounts-with-robux-that-work-2021_GM431946152.pdfIn PDF document text
    • http://psb.sd-alazhar29.sch.id/repository/anime-tycoon-hack-roblox_GM431946152.pdfIn PDF document text
    • http://psb.sd-alazhar29.sch.id/repository/pokemon-go-free-643_GM1094591345.pdfIn PDF document text
    • http://psb.sd-alazhar29.sch.id/repository/static-moonactive-net-link_GM406889139.pdfIn PDF document text
    • http://psb.sd-alazhar29.sch.id/repository/free-20212021202120212021202120212021202120212021202120219-robux_GM431946152.pdfIn PDF document text
    • http://psb.sd-alazhar29.sch.id/repository/como-descargar-hacks-para-atravesar-paredes-en-roblox_GM431946152.pdfIn PDF document text
    • http://psb.sd-alazhar29.sch.id/repository/blueberry-hack-roblox-jailbreak_GM431946152.pdfIn PDF document text
    • http://psb.sd-alazhar29.sch.id/repository/roblox-t-shirt-template-free_GM431946152.pdfIn PDF document text
    • http://psb.sd-alazhar29.sch.id/repository/roblox-outrageous-builders-club-for-free_GM431946152.pdfIn PDF document text
    • http://psb.sd-alazhar29.sch.id/repository/como-hack-coin-master_GM406889139.pdfIn PDF document text
    • http://psb.sd-alazhar29.sch.id/repository/coin-master-free-spins-and-coins_GM406889139.pdfIn PDF document text
    • http://psb.sd-alazhar29.sch.id/repository/free-robux-instantly-2021_GM431946152.pdfIn PDF document text
    • http://psb.sd-alazhar29.sch.id/repository/free-spin-link_GM406889139.pdfIn PDF document text
    • http://psb.sd-alazhar29.sch.id/repository/free-roblox-generator-for-roblox_GM431946152.pdfIn PDF document text
    • http://psb.sd-alazhar29.sch.id/repository/free-admin-panel-roblox-pastebin_GM431946152.pdfIn PDF document text
    • http://psb.sd-alazhar29.sch.id/repository/robux-download_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_off00002f46.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2F46 21868 bytes
SHA-256: 8fcc300587a87c2b25a704be33cb7afdc03317c04f927d5d263be170063fa726
font_01_sfnt_off00005fa2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5FA2 18828 bytes
SHA-256: 119893438dfdee07160b20114d595d80c7b0a9a0af49c5fc1e20f3c535fc2fc3

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