Malicious PDF — malware analysis report

Static analysis result for SHA-256 f6cd3fb71112b3eb…

MALICIOUS

PDF

48.6 KB Created: 2021-06-08 10:44:26 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-15
MD5: 6a1c53f21dff2b9ec374fc18060f18e5 SHA-1: 1c53fe4526602b58cbf9e3ed682ec51d0654f2c7 SHA-256: f6cd3fb71112b3eb96cf57de7c876e918917fba962a06044769db8eab636650e
82 Risk Score

Malware Insights

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

The document presents a lure related to game hacks and free in-game items, directing users to external URLs. The heuristic 'SE_CLIPBOARD_COMMAND_LURE' indicates the document likely instructs users to paste content into a command-line interface, suggesting an attempt to execute downloaded payloads. While no scripts were explicitly extracted, the presence of embedded URLs and the ML classifier's high confidence point towards a malicious downloader.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9796

Heuristics 4

  • Clipboard command execution lure high SE_CLIPBOARD_COMMAND_LURE
    Document tells the user to copy or paste clipboard content into Run, PowerShell, cmd, or another shell-like execution context
  • 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.tw/app/431946152/how-to-change-your-name-on-roblox-for-free-2021-game-hack PDF link annotation
    • http://io24.com.ar/images/hacks-for-minecraft-windows-10_GM479516143.pdfIn PDF document text
    • http://io24.com.ar/images/pokemon-go-free-latest-version_GM1094591345.pdfIn PDF document text
    • http://io24.com.ar/images/cheats-for-rake-classic-edition-roblox_GM431946152.pdfIn PDF document text
    • http://io24.com.ar/images/free-robux-survey_GM431946152.pdfIn PDF document text
    • http://io24.com.ar/images/hack-btools-roblox-espaol_GM431946152.pdfIn PDF document text
    • http://io24.com.ar/images/counter-blox-roblox-hack-2021_GM431946152.pdfIn PDF document text
    • http://io24.com.ar/images/coin-master-hack-2021_GM406889139.pdfIn PDF document text
    • http://io24.com.ar/images/coin-master-free-spins-activegamer_GM406889139.pdfIn PDF document text
    • http://io24.com.ar/images/coin-master-hack-version-download-2021_GM406889139.pdfIn PDF document text
    • http://io24.com.ar/images/how-to-hack-coin-master-using-es-filer_GM406889139.pdfIn PDF document text
    • http://io24.com.ar/images/free-toys-codes-roblox-2021_GM431946152.pdfIn PDF document text
    • http://io24.com.ar/images/roblox-deep-ocean-hack_GM431946152.pdfIn PDF document text
    • http://io24.com.ar/images/free-robux-com-real_GM431946152.pdfIn PDF document text
    • http://io24.com.ar/images/minecraft-coins-free_GM479516143.pdfIn PDF document text
    • http://io24.com.ar/images/minecraft-mac-free_GM479516143.pdfIn PDF document text
    • http://io24.com.ar/images/roblox-com-hack_GM431946152.pdfIn PDF document text
    • http://io24.com.ar/images/coin-master-daily-free-spins-2021_GM406889139.pdfIn PDF document text
    • http://io24.com.ar/images/free-robux-codes-generator-no-verification_GM431946152.pdfIn PDF document text
    • http://io24.com.ar/images/roblox-operation-scorpion-hack_GM431946152.pdfIn PDF document text
    • http://io24.com.ar/images/robux-pastebin-hack-no-waiting_GM431946152.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
font_00_sfnt_off00004f9c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4F9C 25740 bytes
SHA-256: 3973c2625b749894b653f4a7fc575f820c795da071abaf17c00ee631c689e8df
font_01_sfnt_off000089f0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x89F0 5696 bytes
SHA-256: 450e3ee45915afe13702bf1d587eb8b9ad88a8d2113419ac9f2fd116a828e139
font_02_sfnt_off00009701.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9701 19756 bytes
SHA-256: 2bf0f83bdbf57a62fff67313d8bda4267a1de33aa633ecaf11b3992f56ff6b85

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