Malicious PDF — malware analysis report

Static analysis result for SHA-256 e2a3dae16a8857c7…

MALICIOUS

PDF

36.5 KB Created: 2021-05-14 03:01:18 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: ce822458c1e7f32d68cd61bd8e118557 SHA-1: 55e622fab485afffc271a2c4399ab81cc65dcb8b SHA-256: e2a3dae16a8857c7290dec58229b3c0e89b82a5449c193d107ca9db6aec9cfdd
112 Risk Score

Malware Insights

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

The document presents a lure for a "Roblox Robux Hack" and explicitly requests "recovery secrets" or "private keys", indicating a phishing attempt to steal user credentials or financial information. The embedded URL points to a suspicious domain associated with the hack lure, suggesting it leads to a malicious payload or phishing page. While no scripts were directly extracted, the PDF structure and heuristics suggest an attempt to exploit user interaction via embedded links.

Machine Learning

  • Nyx PDF Classifier clean score 0.0312

Heuristics 5

  • Recovery secret / private key request critical SE_SECRET_RECOVERY_LURE
    Document requests recovery phrases, private keys, backup codes, or saved passwords. Requests for these secrets in a document are high-risk.
  • 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/roblox-robux-hack-game-hack
    • https://www.communes.com
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00003446.bin
7dd8ef7b2665bbb7ee480b3591303568311bccc8f8dd0c6f5148d12388ae3002
decompressed-pdf-stream PDF FlateDecoded stream at offset 0x3446 25176 bytes
font_01_sfnt_off00006d18.bin
fa424f86a9ddd472d540fc30f07119be4b576a9306b5f7bb82c207f2bb92a2b4
pdf-font-stream PDF embedded font (sfnt) at offset 0x6D18 18320 bytes