Malicious PDF — malware analysis report

Static analysis result for SHA-256 54bb04bf0a77adef…

MALICIOUS

PDF

38.9 KB Created: 2021-05-12 00:16:06 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-04
MD5: 40f87ccb5e1499358481b7db528dfc78 SHA-1: 5669e5660011cde05b853e39d43bb6daeeec366f SHA-256: 54bb04bf0a77adef1a70f2a15cfe24eb6a7336088539143ea1261ffe68de3bbd
92 Risk Score

Malware Insights

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

The PDF document contains a lure related to obtaining a game hack, directing users to a suspicious URL. It also contains a high-risk heuristic for a remote-support tool lure, suggesting the attacker intends to gain remote access. The embedded URL likely leads to a malicious payload or further social engineering.

Machine Learning

  • Nyx PDF Classifier clean score 0.0334

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.
  • Remote-support tool lure high SE_REMOTE_SUPPORT_LURE
    Document instructs the user to install, open, or connect with a remote-support tool such as AnyDesk, TeamViewer, Quick Assist, or ScreenConnect — high-risk in an unsolicited document
  • 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/how-to-get-minecraft-for-free-on-nintendo-switch-game-hack PDF link annotation
    • 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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off0000381b.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x381B 30948 bytes
SHA-256: ec616d98b09eb6488094ddd5c2be47f5804ee8ef74018d2bde819a7f6bf17093
font_01_sfnt_off0000775b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x775B 18212 bytes
SHA-256: f5fb374f4c57ea8e5b07667c881ff92ebdf307e1f7f4ca70019b2384515d6573

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