Malicious PDF — malware analysis report

Static analysis result for SHA-256 c2c30128aa417b9b…

MALICIOUS

PDF

46.8 KB Created: 2021-05-22 06:07:04 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 9b5862584ed555901ffd6136f8034108 SHA-1: 99ed8f1bb1ee9254562d8cc68c9613ffeabcde0f SHA-256: c2c30128aa417b9b9df75b50744d7e877aeb42ada34f95e9b32072e88ada3ebc
82 Risk Score

Malware Insights

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

The PDF document contains embedded links that redirect to websites offering game hacks and generators, such as 'how-to-hack-a-roblox-account'. This lure is designed to entice users to click on malicious URLs. While no scripts were explicitly extracted, the PDF structure and heuristic firings suggest it's designed to exploit users through deceptive content, likely leading to a secondary payload download or phishing attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7358

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-a-roblox-account-easy-game-hack PDF link annotation
    • http://autoskola-scp.com/files/coin-master-free-spins-link-today-haktuts_GM406889139.pdfIn PDF document text
    • http://autoskola-scp.com/files/how-do-you-get-minecraft-for-free_GM479516143.pdfIn PDF document text
    • http://autoskola-scp.com/files/roblox-hack-2021_GM431946152.pdfIn PDF document text
    • http://autoskola-scp.com/files/promo-codes-for-free-robux_GM431946152.pdfIn PDF document text
    • http://autoskola-scp.com/files/2021-coin-master-hack_GM406889139.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_off00003577.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x3577 38408 bytes
SHA-256: 96ab89fa7a4ae0025ab38a55c103c6f4abb936135fecbb43e336c4dc27f92598
font_01_sfnt_off00008abe.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8ABE 2824 bytes
SHA-256: 94c1b019735d7e491765340abe50b2897410e2ec65ecf141c08bd9f2220897c4
font_02_sfnt_off0000946c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x946C 18772 bytes
SHA-256: f0aa2a8f008262e8aa636f08cdffff7c9568ae6e0bf5f389be1472b9a6879674