Malicious PDF — malware analysis report

Static analysis result for SHA-256 179385fba2b17cab…

MALICIOUS

PDF

37.7 KB Created: 2021-05-19 06:05:02 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-11-21
MD5: bf6bf4c9b182e33db3a314005a7eab6e SHA-1: 5e86bf538ac75db4e7000ff429aba11ba9c56275 SHA-256: 179385fba2b17cab22f949a7e5bfbdfcf5a147c9ffc17cb9f6304a794766dfb2
130 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a lure related to 'free generators' and 'game hacks' for Roblox, directing users to a malicious URL. This URL is flagged as a known malicious redirector, indicating an attempt to lead the user to a malicious site or download. The document body and heuristics confirm the use of a game hack lure to entice clicks on malicious links.

Machine Learning

  • Nyx PDF Classifier clean score 0.0334

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/how-to-hack-people-on-roblox-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
font_00_sfnt_off000034a8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x34A8 25792 bytes
SHA-256: a7009d184da560b7469e0858b9bc32f06beefefc16935122aa1d51e642a7c533
font_01_sfnt_off0000709a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x709A 18676 bytes
SHA-256: 9439cdf519c477105af26a237b903c28353edd649090bb99f856962d56c9ecd1

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