Malicious PDF — malware analysis report

Static analysis result for SHA-256 cc10d2159674199e…

MALICIOUS

PDF

36.6 KB Created: 2021-05-22 05:46:56 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: 93055745618395bcf322c6a081768aa2 SHA-1: aabba8f1ce8b577efd6a3bb62ac36964ebdae5d0 SHA-256: cc10d2159674199ed186854304407d41167721b05f5c400160504c403535187a
82 Risk Score

Malware Insights

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

This PDF document contains an embedded URL and multiple other URLs that appear to be lures for free game items or cheats. The document also contains a heuristic firing indicating it attempts to trick the user into executing commands via the clipboard, likely to download and execute a second-stage payload. The ML classifier also flagged this PDF as malicious with high confidence.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9447

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/479516143/how-do-i-get-minecraft-for-free-game-hack PDF link annotation
    • http://asiasieja.pl/images/coin-master-connection-lost_GM406889139.pdfIn PDF document text
    • http://asiasieja.pl/images/free-robux-com-2021_GM431946152.pdfIn PDF document text
    • http://asiasieja.pl/images/free-minecraft-gift-codes_GM479516143.pdfIn PDF document text
    • http://asiasieja.pl/images/coin-master-free-spin-download_GM406889139.pdfIn PDF document text
    • http://asiasieja.pl/images/real-free-robux-generator_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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_002_off0000348c.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x348C 25544 bytes
SHA-256: 25941e4f50c05db7df208e12d2690a31963396311cdab45ed69e05212e929be1
font_01_sfnt_off00006e91.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6E91 18044 bytes
SHA-256: 8adf8c493cf7b961d8151eaa7b2e31490a9d93b7fc863b831128d5e31b20427f

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