Malicious PDF — malware analysis report

Static analysis result for SHA-256 ae19e0e4bd236679…

MALICIOUS

PDF

39.4 KB Created: 2021-05-22 16:57:29 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 03e716a4055312e0c5dd75ab8b62a8d2 SHA-1: feef7bd8c0102993a4b967c794ae17d9aeaf9ac2 SHA-256: ae19e0e4bd236679296436d675fd1ecb59226be6b6a244197d94e0e70ab4f20c
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF document contains multiple links and a call-to-action phrase, 'CLICK HERE TO ACCESS ROBLOX GENERATOR', designed to trick users into downloading a malicious payload. The primary lure is related to 'Robux Hacks 2021', indicating a phishing or scam attempt. The document also embeds several URLs that likely lead to further malicious content or downloads.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8068

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/robux-hacks-2021-game-hack PDF link annotation
    • http://www.rezbb.sk/images/free-spin-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://www.rezbb.sk/images/minecraft-pe-free-ios_GM479516143.pdfIn PDF document text
    • http://www.rezbb.sk/images/roblox-apocalypse-rising-hack_GM431946152.pdfIn PDF document text
    • http://www.rezbb.sk/images/roblox-admin-hack_GM431946152.pdfIn PDF document text
    • http://www.rezbb.sk/images/pokemon-go-free-or-shadow-mewtwo_GM1094591345.pdfIn PDF document text
    • https://www.roblox.coIn 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_off00003419.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x3419 25580 bytes
SHA-256: 94d2b93f27f8de5fec746aa05dbf54dfeeaec91458e45c42b24051034ea0435a
font_01_sfnt_off00006d32.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6D32 2880 bytes
SHA-256: 10d025f04f706eb71cdda4f99784df1b9ccb52e48080e43095e0398eaef6f132
font_02_sfnt_off0000771c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x771C 18648 bytes
SHA-256: 03ab0df94635c5ebeb05191dd2fda9aa410ed650044dc459735f8f7cc99ee4ee

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