Malicious PDF — malware analysis report

Static analysis result for SHA-256 3e8e0c92efe1081e…

MALICIOUS

PDF

33.6 KB Created: 2021-06-28 02:30:51 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-24
MD5: 493e8c0c24908fbcbcbc27ca2cbd7de8 SHA-1: 0ee43472b3d70b024e9c388afbfec0931999a7e0 SHA-256: 3e8e0c92efe1081e44e6485837108d92d3967612f99afef0de6a04e6f32b92aa
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document employs a lure of free in-game items and hacks for popular games like Roblox to trick users into clicking malicious links. The primary malicious URL identified is http://netcdn.co/app/431946152/all-of-the-free-items-in-roblox-game-hack, which is flagged as a known malicious redirector. The document's structure and embedded URLs suggest an attempt to drive traffic to potentially harmful content or further malware downloads.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector critical 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. CRITICAL on its own: the /app/<id>/<slug>-game-hack path shape is unambiguous scam infra, and the host rotates so a host-list match can't be relied on.
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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
  • 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/all-of-the-free-items-in-roblox-game-hack In PDF document text
    • http://library.apsidoarjo.ac.id/repository/roblox-secret-cheat-codes-for-music-steven-universe_GM431946152.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id/repository/roblox-welcome-to-roblox-building-hack_GM431946152.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id/repository/how-to-get-free-robux-on-computer-2021-real_GM431946152.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id/repository/earn-free-robux_GM431946152.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id/repository/como-hackear-robux-en-meepcity_GM431946152.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id/repository/free-script-runner-roblox_GM431946152.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id/repository/free-roblox-gift-card-codes-2021_GM431946152.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id/repository/hack-coin-master-no-survey_GM406889139.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id/repository/free-fire-roblox_GM431946152.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id/repository/coin-master-free-spin-codes_GM406889139.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id/repository/free-roblox-crown_GM431946152.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id/repository/minecraft-ps4-free_GM479516143.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id/repository/coin-master-free-spins-hack-2021_GM406889139.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id/repository/roblox-cheats-client_GM431946152.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id/repository/roblox-roleplays-free_GM431946152.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id/repository/free-robux-2021-actually-working_GM431946152.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id/repository/hack-robar-cuentas-de-roblox-2021-akakaa_GM431946152.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id/repository/coin-master-spin-link-2021_GM406889139.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id/repository/jailbreak-roblox-hack-2021_GM431946152.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id/repository/coin-master-free-spin-link-daily_GM406889139.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_off00002df9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2DF9 21784 bytes
SHA-256: 8e07b7c05e4219ef3696470c90a0368c5de0bd1282e290e37b58a6de1839f7e8
font_01_sfnt_off00005e09.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5E09 19180 bytes
SHA-256: e0e566ae9d5e69e4ab1dfcf4334d8380e8d49b9ba54e5fd83fb0a805a54afea1

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