Malicious PDF — malware analysis report

Static analysis result for SHA-256 5cd9f7ba1a78037d…

MALICIOUS

PDF

40.8 KB Created: 2021-05-13 11:33:32 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-08-25
MD5: 55b891706c30549f06339e3b6dfeae9e SHA-1: b5d202207cfeb6db7af78049ffd69d32fdee8447 SHA-256: 5cd9f7ba1a78037d50ef58f0740f4a2ec43a6d059b23ddcb09a9d2525e973665
130 Risk Score

Malware Insights

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

The PDF document contains a lure for a 'Roblox Hack Generator' and a prominent call-to-action button directing users to a malicious URL. This URL is identified as a known malicious redirector, indicating an attempt to deliver a secondary payload. The document's structure and content suggest it is designed to trick users into executing malicious code.

Machine Learning

  • Nyx PDF Classifier clean score 0.0128

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-generator-game-hack In 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_off0000340a.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x340A 25996 bytes
SHA-256: 12bee4c7ae3c94c244914ea28a5e8ad6f5609f58ed57cb01170beea23d65528a
font_01_sfnt_off00007118.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7118 5596 bytes
SHA-256: 9a13c2580265a78e8a7257496a31ee0055738af7e20a5661c2902efe4bf05ce5
font_02_sfnt_off00007dc0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7DC0 18284 bytes
SHA-256: 25a7dda4fa93a15709e62d61065895c31c9e65ce27a7c8bbaa34224db667a0ef

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