Malicious PDF — malware analysis report

Static analysis result for SHA-256 166c62539d801ca8…

MALICIOUS

PDF

39.0 KB Created: 2021-05-10 18:42:34 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-16
MD5: 4e8eeced598a4b7b7102078f13496cc2 SHA-1: f556cdb6080b9d8c1b306c065a61ac6fe31e38db SHA-256: 166c62539d801ca8657c9707f4e5c869387b12f220453b53f774383d8b97fa61
130 Risk Score

Malware Insights

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

The PDF document contains embedded links that are identified as malicious redirectors, specifically luring users with 'Hacks For Minecraft Bedrock' and 'CLICK HERE TO ACCESS MINECRAFT GENERATOR'. The primary malicious URL, https://netcdn.xyz/app/479516143/hacks-for-minecraft-bedrock-game-hack, is repeatedly referenced and flagged by heuristics. The document's structure and content suggest a phishing or scam attempt designed to lead the user to a compromised or malicious site.

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/479516143/hacks-for-minecraft-bedrock-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_off000035aa.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x35AA 24356 bytes
SHA-256: b855622e434a88468a3d793cacc8e337892e5f8e9c838ce1e017a92684008f7b
font_01_sfnt_off00006cd8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6CD8 3128 bytes
SHA-256: 801f6fa60decd1add2f223f91580103c35e150c924465f86a7a572b3e00674f9
font_02_sfnt_off00007718.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7718 18268 bytes
SHA-256: 92f6e8526b02627b1408819f1618724de120737fe6927f0c4c019a746b3c5a34