Malicious PDF — malware analysis report

Static analysis result for SHA-256 a384fc8775278ccd…

MALICIOUS

PDF

36.6 KB Created: 2021-05-15 23:38:42 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-11-03
MD5: bdb068e2ee7dfbda6b964115eee0c98a SHA-1: e56e1682a1d01a48040e8d66c53db784cfb8cf85 SHA-256: a384fc8775278ccd19946b6b10d689936e1c6c3cf07697f4df59fe302bc00f49
130 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a lure for a 'Roblox Hack Com' generator, which links to known malicious redirector infrastructure. The document body also contains a call-to-action phrase, 'CLICK HERE TO ACCESS ROBLOX GENERATOR', further reinforcing the malicious intent. The embedded URL is the primary indicator of compromise.

Machine Learning

  • Nyx PDF Classifier clean score 0.0312

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector critical PDF_GAME_HACK_REDIRECT_LURE
    PDF's clickable action targets a redirector of the form /app/<id>/<slug>-game-hack — the landing-page shape of a large SEO 'free spins / generator / game hack' lure family that funnels victims through rotating disposable hosts to a malware/scam payload. The multi-link variants also trip ML/link-farm rules; this catches the single-link variants that otherwise score clean. CRITICAL on its own: the /app/<id>/<slug>-game-hack path shape is unambiguous scam infra, and the host rotates so a host-list match can't be relied on.
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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
  • 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-hack-com-game-hack In PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00003187.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x3187 25500 bytes
SHA-256: 561f078e8dcce611587b893ad51c514ebad6707d4e114a8d99e8444164eb10ac
font_01_sfnt_off00006d01.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6D01 18440 bytes
SHA-256: 92e56247950081f5f8ea935637ec6d93dafa31aa334148af106ab9a8365bd2e0