Malicious PDF — malware analysis report

Static analysis result for SHA-256 10cb5bd867f9beb7…

MALICIOUS

PDF

40.5 KB Created: 2021-05-22 03:42:20 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-16
MD5: 6b129985e20a715da9be06a7cfbc65c0 SHA-1: 775b77018464cfe9c4809d27dad94b2a67d40e10 SHA-256: 10cb5bd867f9beb775bd9c5f196aea03a31e0af2ea89e1c0211467639c2a3cd3
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains embedded URLs and text that lure users with the promise of "free Robux" and "Roblox Generator", directing them to external sites. The presence of a "password-protected archive lure" heuristic suggests that the linked content may be an encrypted payload. The ML classifier also flagged this PDF as malicious, indicating a high probability of malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7776

Heuristics 4

  • Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE
    Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
  • 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/give-me-free-robux-game-hack PDF link annotation
    • http://www.evaplast.by/images/free-robux-generator-2021_GM431946152.pdfIn PDF document text
    • http://www.evaplast.by/images/free-robux-hack-2021_GM431946152.pdfIn PDF document text
    • http://www.evaplast.by/images/moonactive-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://www.evaplast.by/images/how-to-get-free-robux-with-no-verification_GM431946152.pdfIn PDF document text
    • http://www.evaplast.by/images/google-moon-active_GM406889139.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
font_00_sfnt_off00003474.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3474 27848 bytes
SHA-256: 050cd97f4276faf9085145f09a4e9cc2fab6bc05f813438c1023762e20a104a1
font_01_sfnt_off00007283.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7283 2912 bytes
SHA-256: 02b35010e2614e3cc95ac6414c49295350c91fdfcc4b4cad27ffdbc10e80df7f
font_02_sfnt_off00007c80.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7C80 18444 bytes
SHA-256: 68319dbf483afe81c5a4de3b3f5290fc223d358c0f75f000dd988daf46eb7eae

Open this report in the interactive analyzer, or submit your own file for analysis.