Malicious PDF — malware analysis report

Static analysis result for SHA-256 d8b32a4d86db921d…

MALICIOUS

PDF

41.2 KB Created: 2021-05-13 02:31:48 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-11
MD5: 6650dfe79b4d20133fd3c0eeec99340d SHA-1: adc5ebf63862b90bab4ec00e49fbf95d4d70085c SHA-256: d8b32a4d86db921d3d6138e65c08a4bc93bc4d9da472234af0652dc0e7910d04
130 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains embedded links that redirect to a website offering a 'Roblox Free No Download Game Hack'. This is a common lure for phishing or malware distribution. The heuristic firings confirm the presence of malicious redirector links and a general lure for downloads. No scripts were extracted, but the document's structure and embedded URLs strongly suggest a phishing or malware delivery attempt.

Machine Learning

  • Nyx PDF Classifier clean score 0.0125

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-free-no-download-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_off00002fe7.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x2FE7 29380 bytes
SHA-256: 046aaba2d6ebb8e964a509a69c167ab4497da19dd3f1abeef108a8c86e765516
font_01_sfnt_off00007124.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7124 5696 bytes
SHA-256: 450e3ee45915afe13702bf1d587eb8b9ad88a8d2113419ac9f2fd116a828e139
font_02_sfnt_off00007e35.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7E35 18680 bytes
SHA-256: 594f974c71c1e9b72d2021421f5ea77f9f9dd5e689ba96d2b51dc4efe6f30b0b

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