Malicious PDF — malware analysis report

Static analysis result for SHA-256 ed2edf62f7373a81…

MALICIOUS

PDF

48.2 KB Created: 2021-06-13 15:17:40 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-18
MD5: f27bbd249b907f7f5d54809b764d5529 SHA-1: a9eb718c06889a7bda1974b83a098161ed29edbf SHA-256: ed2edf62f7373a81ad211d4758f87caa206a5dbc52f55ddf7721714214806125
122 Risk Score

Malware Insights

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

The PDF document contains a lure for "free Roblox game hack" generators, which is a common tactic to trick users into clicking malicious links. The document displays a fake CAPTCHA or human verification prompt to further entice users to interact with the embedded URL. The primary URL identified, http://netcdn.co/app/431946152/jeux-de-free-roblox-game-hack, is likely the initial landing page for a malicious payload or scam.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9796

Heuristics 5

  • 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.
  • Fake CAPTCHA / human verification prompt high SE_FAKE_CAPTCHA
    Document displays a fake CAPTCHA or human-verification prompt — used to trick users into running commands or pressing keyboard shortcuts
  • 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.co/app/431946152/jeux-de-free-roblox-game-hack PDF link annotation
    • http://pustaka.faterna.unand.ac.id/repository/free-robux-sites-2021_GM431946152.pdfIn PDF document text
    • http://pustaka.faterna.unand.ac.id/repository/free-roblox-shirt-templates-2021_GM431946152.pdfIn PDF document text
    • http://pustaka.faterna.unand.ac.id/repository/minecraft-hacks-115-2_GM479516143.pdfIn PDF document text
    • http://pustaka.faterna.unand.ac.id/repository/get-free-spins-on-coin-master-links_GM406889139.pdfIn PDF document text
    • http://pustaka.faterna.unand.ac.id/repository/spinuri-gratis-coin-master_GM406889139.pdfIn PDF document text
    • http://pustaka.faterna.unand.ac.id/repository/get-coins-pokemon-go-free_GM1094591345.pdfIn PDF document text
    • http://pustaka.faterna.unand.ac.id/repository/easy-roblox-hack-client-2021_GM431946152.pdfIn PDF document text
    • http://pustaka.faterna.unand.ac.id/repository/roblox-tr-808-vst-free_GM431946152.pdfIn PDF document text
    • http://pustaka.faterna.unand.ac.id/repository/coin-master-apk-hack-2021-ios_GM406889139.pdfIn PDF document text
    • http://pustaka.faterna.unand.ac.id/repository/coin-master-bonus_GM406889139.pdfIn PDF document text
    • http://pustaka.faterna.unand.ac.id/repository/how-to-get-free-robux-on-roblox-2021_GM431946152.pdfIn PDF document text
    • http://pustaka.faterna.unand.ac.id/repository/free-robux-no-verify_GM431946152.pdfIn PDF document text
    • http://pustaka.faterna.unand.ac.id/repository/free-robux-real_GM431946152.pdfIn PDF document text
    • http://pustaka.faterna.unand.ac.id/repository/roblox-apocalypse-rising-hack_GM431946152.pdfIn PDF document text
    • http://pustaka.faterna.unand.ac.id/repository/tiktok-free-vs-paid_GM835599320.pdfIn PDF document text
    • http://pustaka.faterna.unand.ac.id/repository/free-minecraft-codes_GM479516143.pdfIn PDF document text
    • http://pustaka.faterna.unand.ac.id/repository/minecraft-alt-accounts-free_GM479516143.pdfIn PDF document text
    • http://pustaka.faterna.unand.ac.id/repository/how-to-get-free-coins-in-mcpe-master_GM406889139.pdfIn PDF document text
    • http://pustaka.faterna.unand.ac.id/repository/roblox-btools-hack-2021-download_GM431946152.pdfIn PDF document text
    • http://pustaka.faterna.unand.ac.id/repository/free-tiktok-views_GM835599320.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_004_off00005245.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x5245 27284 bytes
SHA-256: e424453ebdc1cc376514a59fabf3c74fc60c04498ad9d4b22af5c06b58b0f6fe
font_01_sfnt_off00008f74.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8F74 2832 bytes
SHA-256: 77ae1c4cffa647a8fd533dfa4102e94364989f9e80b9cd131876e9d1005899a2
font_02_sfnt_off00009924.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9924 18424 bytes
SHA-256: 908a7ad50e45594ffe860c329fb33fdd29f0617633386c77b4ea3106ddc3e36c

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