Malicious PDF — malware analysis report

Static analysis result for SHA-256 dcd835c6ddc37520…

MALICIOUS

PDF

50.5 KB Created: 2021-05-12 20:02:44 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: b320ca1334a1f911b00cc8b9da4e3137 SHA-1: 602afef1dbe3acd2685d83bc071f65c5ef292a62 SHA-256: dcd835c6ddc37520bf73322c019170985ac3bce5323dba7f36b6b865420f2527
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a lure for free game currency, directing users to a malicious URL. This URL is likely intended to download a second-stage payload or redirect to a phishing site. The ML classifier strongly indicated maliciousness, and the embedded URI points to a known scam pattern.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9982

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/free-robux-no-scam-game-hack PDF link annotation
    • http://parsbaft.com/images/how-to-get-free-robux-codes-2021_GM431946152.pdfIn PDF document text
    • http://parsbaft.com/images/roblox-robux-generator-http-freerobuxgenerator-xyz_GM431946152.pdfIn PDF document text
    • http://parsbaft.com/images/free-coin-master-hack-no-verification_GM406889139.pdfIn PDF document text
    • http://parsbaft.com/images/coin-master-free-100-spin-link_GM406889139.pdfIn PDF document text
    • http://parsbaft.com/images/are-minecraft-realms-free_GM479516143.pdfIn PDF document text
    • http://parsbaft.com/images/free-spins-in-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://parsbaft.com/images/moon-active-games_GM406889139.pdfIn PDF document text
    • http://parsbaft.com/images/how-do-u-get-free-robux-2021_GM431946152.pdfIn PDF document text
    • http://parsbaft.com/images/coin-master-mod-apk_GM406889139.pdfIn PDF document text
    • http://parsbaft.com/images/how-to-hack-coin-master-with-game-guardian_GM406889139.pdfIn PDF document text
    • http://parsbaft.com/images/robux-matchcomfree-robux_GM431946152.pdfIn PDF document text
    • http://parsbaft.com/images/haktuts-coin-master-free-daily-spins_GM406889139.pdfIn PDF document text
    • http://parsbaft.com/images/free-roblox-accounts-with-robux-2021_GM431946152.pdfIn PDF document text
    • http://parsbaft.com/images/free-robux-games-that-actually-work_GM431946152.pdfIn PDF document text
    • http://parsbaft.com/images/roblox-jailbreak-hack-download_GM431946152.pdfIn PDF document text
    • http://parsbaft.com/images/free-robux-exe_GM431946152.pdfIn PDF document text
    • http://parsbaft.com/images/coin-master-free-spins-cheat-deutsch_GM406889139.pdfIn PDF document text
    • http://parsbaft.com/images/how-do-you-earn-robux_GM431946152.pdfIn PDF document text
    • http://parsbaft.com/images/coin-master-free-spins-2021_GM406889139.pdfIn PDF document text
    • http://parsbaft.com/images/coin-master-hacks-2021_GM406889139.pdfIn 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_003_off00004ab8.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4AB8 39360 bytes
SHA-256: f5478847825eb40e9daad6aab4cdc5e190152eb53985ba424789e509193af92a
font_01_sfnt_off0000a30a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA30A 18500 bytes
SHA-256: b3a5a2e86a30a2234a3ee6d3c2f7de48a52411aef28342c5883490dd6d64f819

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