Malicious PDF — malware analysis report

Static analysis result for SHA-256 8a46f8895b41551a…

MALICIOUS

PDF

39.9 KB Created: 2021-05-24 07:29:30 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-17
MD5: a9bc43d8cbe2a1cbe1bee2bd1b7deaab SHA-1: db4d6c457ca2d241ac403ecf62c06f0313dd8b1f SHA-256: 8a46f8895b41551a2545220a8e94e04dcf702927200a223069b8bc8207b28be1
122 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.001 PowerShell T1203 Exploitation for Client Execution

The PDF document uses a game hack lure to trick users into executing commands, as indicated by the 'Clipboard command execution lure' heuristic. It contains multiple embedded URLs pointing to sites offering game-related cheats or generators, suggesting a phishing or malware distribution attempt. The primary lure URL is https://netcdn.xyz/app/479516143/free-minecraft-accounts-2021-game-hack, which is likely the initial stage of a download or redirection chain.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8015

Heuristics 5

  • PDF links to a 'free generator / game hack' redirector high 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.
  • Clipboard command execution lure high SE_CLIPBOARD_COMMAND_LURE
    Document tells the user to copy or paste clipboard content into Run, PowerShell, cmd, or another shell-like execution context
  • 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
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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/free-minecraft-accounts-2021-game-hack PDF link annotation
    • http://salantiskis.lt/images/roblox-redeem-codes-free_GM431946152.pdfIn PDF document text
    • http://salantiskis.lt/images/coin-master-hacks-for-pet-food_GM406889139.pdfIn PDF document text
    • http://salantiskis.lt/images/generator-robux_GM431946152.pdfIn PDF document text
    • http://salantiskis.lt/images/earn-free-robux_GM431946152.pdfIn PDF document text
    • http://salantiskis.lt/images/how-to-get-free-robux-by-playing-games_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003709.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3709 25368 bytes
SHA-256: 71109611c22352312d8cdc74394bd7ebbcc86a4f5e8508c202f8356c401b5e4f
font_01_sfnt_off00007064.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7064 2976 bytes
SHA-256: 728438c955c7ef21fefebeffafefc7055118b31603d74bb6d3e760c3558eafd3
font_02_sfnt_off00007aa4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7AA4 18252 bytes
SHA-256: a7a52ec6c2bb565f332a4905da6a686ee34bc05df98df468ad89fd298f001152

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