Malicious PDF — malware analysis report

Static analysis result for SHA-256 eb565ef711c06037…

MALICIOUS

PDF

44.0 KB Created: 2021-06-03 12:17:31 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 1b93a99cb46837787f42e8f8b80119de SHA-1: c7ea323b5f0bbfb04216d4578df879eb9f248c77 SHA-256: eb565ef711c0603712a42dca67e02167d850bb2509ebd8935ea701eb08326b2c
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a lure for 'free Robux' and game hacks, directing users to the malicious URL https://netcdn.online/app/431946152/free-robux-earn-game-hack. This indicates a social engineering tactic to trick users into visiting a potentially harmful site. While no scripts were explicitly extracted, the PDF structure and embedded URLs suggest it's designed to lead users to a malicious resource, likely for further exploitation or malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9865

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 https://netcdn.online/app/431946152/free-robux-earn-game-hack PDF link annotation
    • http://library.apsidoarjo.ac.id//repository/how-to-get-free-pet-snacks-in-coin-master_GM406889139.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id/repository/hack-client_GM479516143.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id//repository/weird-roblox_GM431946152.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id/repository/coin-master-free-spins-link-whatsapp-group_GM406889139.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id/repository/mcpe-hacks_GM479516143.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id/repository/can-tiktok-free-view-bot_GM835599320.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id/repository/free-ways-to-get-robux_GM431946152.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id/repository/coin-master-daily-free-spins-and-coins_GM406889139.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id//repository/hacks-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id/repository/roblox-army-robux_GM431946152.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id/repository/coin-master-hack-pc-2021_GM406889139.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id//repository/free-spins-coin-master-no-human-verification_GM406889139.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id/repository/coin-master-club-hack_GM406889139.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id/repository/daily-free-spin-coin-master-link_GM406889139.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id//repository/coin-master-daily-free-spins-link-today-2021_GM406889139.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id/repository/pokemon-go-free-spoofer-ios_GM1094591345.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id/repository/minecraft-account-hacked_GM479516143.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id//repository/roblox-apk-hack_GM431946152.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id//repository/coin-master-daily-free-spins-blogspot_GM406889139.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id/repository/hack-minecraft_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
stream_004_off000051ed.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x51ED 24240 bytes
SHA-256: 7094c92715c9a0ecab7758a37dea40e65907df5b1cc3d58379a86bd472e6a1f5
font_01_sfnt_off00008970.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8970 18244 bytes
SHA-256: b6014a1bf70a80b5b7176295bd11553985cf3fccea183fb301f46a2e8db4226f

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