Malicious PDF — malware analysis report

Static analysis result for SHA-256 14052cc4e324f6c0…

MALICIOUS

PDF

48.3 KB Created: 2021-05-20 03:39:39 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: 523184969279e01160b9df070f422760 SHA-1: 402ef008ea69876838d0c2ff4d6b93c2ec507673 SHA-256: 14052cc4e324f6c02688a388202ccd02a7d5fd497c55effb0cfbcdb84e8a0737
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF document contains lures related to hacking and free in-game currency, directing users to external URLs. A high-confidence heuristic indicates the document attempts to trick users into executing commands by copying content to a shell, a common technique for downloading and executing further malicious payloads. The ML classifier also flagged this PDF as malicious.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9013

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.xyz/app/431946152/how-to-hack-people-in-roblox-game-hack PDF link annotation
    • http://caraless.com/images/hack-coin-master-mod-apk_GM406889139.pdfIn PDF document text
    • http://caraless.com/images/coin-master-hack-spins_GM406889139.pdfIn PDF document text
    • http://caraless.com/images/minecraft-font-free_GM479516143.pdfIn PDF document text
    • http://caraless.com/images/coin-master-free-spins-link-2021_GM406889139.pdfIn PDF document text
    • http://caraless.com/images/free-coin-master-cards-link_GM406889139.pdfIn PDF document text
    • http://caraless.com/images/win-free-robux_GM431946152.pdfIn PDF document text
    • http://caraless.com/images/free-robux-gift-card-generator_GM431946152.pdfIn PDF document text
    • http://caraless.com/images/coin-master-hack-tool-2021_GM406889139.pdfIn PDF document text
    • http://caraless.com/images/free-roblox-scripts_GM431946152.pdfIn PDF document text
    • http://caraless.com/images/coin-master-game-hack-app-download_GM406889139.pdfIn PDF document text
    • http://caraless.com/images/bit-ly-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://caraless.com/images/coin-master-daily-free-spins-hack_GM406889139.pdfIn PDF document text
    • http://caraless.com/images/gamehunters-club-coin-master_GM406889139.pdfIn PDF document text
    • http://caraless.com/images/how-to-get-free-robux-2021-easy_GM431946152.pdfIn PDF document text
    • http://caraless.com/images/can-pokemon-go-free-coins_GM1094591345.pdfIn PDF document text
    • http://caraless.com/images/what-is-a-robux_GM431946152.pdfIn PDF document text
    • http://caraless.com/images/how-to-get-free-robux-generator_GM431946152.pdfIn PDF document text
    • http://caraless.com/images/free-robux-generator-no-human-verification-2021_GM431946152.pdfIn PDF document text
    • http://caraless.com/images/free-roblox-accounts-with-robux-that-work-not-banned-2021_GM431946152.pdfIn PDF document text
    • http://caraless.com/images/aimbot-download-roblox_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004c8d.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4C8D 26264 bytes
SHA-256: 1b5857d19efda74f0d7456b5baf6735c6353219c608d56783ff56cfc7dc7b537
font_01_sfnt_off000088fd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x88FD 4660 bytes
SHA-256: b8980cdac4d025496d9fe039d8c05bb5b9bae1b804244a1f9c05e9663db72816
font_02_sfnt_off0000990e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x990E 18676 bytes
SHA-256: 10ff19610ec10ba06ce370fdc76468137d93ed174f58c2f80433e0d310d8c060

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