Malicious PDF — malware analysis report

Static analysis result for SHA-256 98fd87ab02c28bfd…

MALICIOUS

PDF

38.8 KB Created: 2021-05-20 21:59:47 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-17
MD5: 8a8b1192bf62cd33d8c23a2a1620f7b8 SHA-1: 579bd7a885d9a25afb08ae043f31856bd20d9c84 SHA-256: 98fd87ab02c28bfd37e928ee69f94608284ba2a3561962bb2bca6da3eb605210
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple embedded URLs and a high-confidence heuristic firing for a 'game hack' lure. The primary URL, https://netcdn.xyz/app/479516143/minecraft-realms-free-codes-game-hack, is presented as a 'free generator' for Minecraft Realms, a common social engineering tactic. While no scripts were explicitly extracted, the PDF structure and embedded links strongly suggest a malicious redirection chain designed to trick users into downloading further malware or visiting phishing sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8060

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/479516143/minecraft-realms-free-codes-game-hack PDF link annotation
    • http://shapemybrows.id/images/roblox-2021-hack_GM431946152.pdfIn PDF document text
    • http://shapemybrows.id/images/www-robux_GM431946152.pdfIn PDF document text
    • http://shapemybrows.id/images/how-to-get-free-robux-on-roblox-2021_GM431946152.pdfIn PDF document text
    • http://shapemybrows.id/images/roblox-hack-download-pc_GM431946152.pdfIn PDF document text
    • http://shapemybrows.id/images/free-minecraft-com_GM479516143.pdfIn 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_002_off000033be.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x33BE 24340 bytes
SHA-256: 52c945a435d5b00400ffee0bf54804db14f341258c572f1052ae3064dad48aa9
font_01_sfnt_off00006b9d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6B9D 3288 bytes
SHA-256: 8cf28518ba9dce3c2af0460fef667f634d563f1a92cd647c8fb0d1ff4f814cb2
font_02_sfnt_off00007672.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7672 18216 bytes
SHA-256: 30a8f83054e231b1bb485b1ca025b33fda8ee43bcea67b958af1de796f39c45f

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