Malicious PDF — malware analysis report

Static analysis result for SHA-256 1992c149fb5638b2…

MALICIOUS

PDF

38.3 KB Created: 2021-05-22 00:11:49 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: fefefb94623da55b7ba037f5e06290a0 SHA-1: 5dae9f3ade7ca36bee848c314b9abbf7a4acfd21 SHA-256: 1992c149fb5638b24a819c927db50845caf4bb5024f260ade4abd8b523ac67c5
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a lure related to game hacking, directing users to a malicious URL. The document body explicitly contains the phrase 'CLICK HERE TO ACCESS ROBLOX GENERATOR' and multiple links to potentially malicious domains. The ML classifier also flagged the PDF as malicious with high confidence.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9407

Heuristics 4

  • 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.
  • 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/431946152/how-to-hack-roblox-game-hack PDF link annotation
    • https://www.banhngoncaocap.com/images/toolbox-for-minecraft-ios_GM479516143.pdfIn PDF document text
    • https://www.banhngoncaocap.com/images/coin-master-free-gold_GM406889139.pdfIn PDF document text
    • https://www.banhngoncaocap.com/images/free-coins-for-flip-master-online_GM406889139.pdfIn PDF document text
    • https://www.banhngoncaocap.com/images/free-modded-minecraft-server_GM479516143.pdfIn PDF document text
    • https://www.banhngoncaocap.com/images/free-400-spins-coins-master_GM406889139.pdfIn PDF document text
    • https://www.communes.comIn 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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_002_off000031fa.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x31FA 29084 bytes
SHA-256: dc7b4afe8fae8768f9b43c14be368115d6af5608ee0d10419b89c20c735e5ab1
font_01_sfnt_off00007429.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7429 18344 bytes
SHA-256: 73440050ee62d9c8dc97d7cf0d13859b5ca63a66159f36279ab18a86d0bf293f

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