Malicious PDF — malware analysis report

Static analysis result for SHA-256 7cba0900b9d3366e…

MALICIOUS

PDF

38.0 KB Created: 2021-05-22 22:33:56 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-17
MD5: 1d3ff02468d85ec418311f1f698338ac SHA-1: 8a225723435c372c944f58547feaa8a89fd93608 SHA-256: 7cba0900b9d3366ea823c2bf2130cbaf61eae5f8e5ce57c1363b808afc69c29b
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links and a call-to-action phrase, "CLICK HERE TO ACCESS ROBLOX GENERATOR", designed to trick users into visiting malicious websites. The primary lure is related to "free Robux" and "game hacks", indicating a phishing or scam attempt. The embedded URLs point to domains known for hosting such lures, suggesting the PDF acts as a dropper or redirector to a malicious payload.

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/get-free-robux-com-game-hack PDF link annotation
    • http://arkivthy.dk/images/free-robux-hacks-no-verification_GM431946152.pdfIn PDF document text
    • http://arkivthy.dk/images/can-you-get-free-robux-on-roblox_GM431946152.pdfIn PDF document text
    • http://arkivthy.dk/images/coin-master-spins-hack-2021_GM406889139.pdfIn PDF document text
    • http://arkivthy.dk/images/coin-master-free-spins-hack-ios_GM406889139.pdfIn PDF document text
    • http://arkivthy.dk/images/minecraft-dungeons-download-free_GM479516143.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_002_off0000346b.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x346B 27936 bytes
SHA-256: 3b13acc59a06790ec7efb18e6a4cae9867ba86b1d989284a7b83b2aa4398b0ec
font_01_sfnt_off000072f3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x72F3 18376 bytes
SHA-256: 2d8882c6a342abc4889e46f94bfee9f8cbf5538b2f5dc41d172000db9622f481

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