Malicious PDF — malware analysis report

Static analysis result for SHA-256 f3e582fc8c5312db…

MALICIOUS

PDF

40.9 KB Created: 2021-04-22 20:20:49 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-01
MD5: 2ba7349faa507bbdb74fb97e033ae218 SHA-1: ad324c420b87f7775f8b1098b6152b0d5dabba61 SHA-256: f3e582fc8c5312dba6c91c2068e6947254972be8a6bd404cca33ad2f9b812d78
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document was flagged as malicious by an ML classifier. The file routes users through malicious redirector infrastructure and presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9941

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://netsecure.pro/app/431946152/super-checkpoint-roblox-cheats-game-hack PDF link annotation
    • http://rwathia.com/images/how-to-get-a-free-top-hat-in-roblox.pdfIn PDF document text
    • http://rwathia.com/images/how-to-get-the-stylish-animations-in-roblox-for-free.pdfIn PDF document text
    • http://rwathia.com/images/how-to-get-free-robux-no-builders-club.pdfIn PDF document text
    • http://rwathia.com/images/roblox-hack-robux-2021-no-human-verification.pdfIn PDF document text
    • http://rwathia.com/images/roblox-games-that-give-free-items.pdfIn PDF document text
    • http://rwathia.com/images/roblox-robux-hacks-2021-working.pdfIn PDF document text
    • http://rwathia.com/images/free-robux-quiz-diva.pdfIn PDF document text
    • http://rwathia.com/images/kuso-icu-roblox-hack.pdfIn PDF document text
    • http://rwathia.com/images/hack-robar-cuenta-de-roblox.pdfIn PDF document text
    • http://rwathia.com/images/free-advertising-on-roblox.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_003_off00004064.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4064 27732 bytes
SHA-256: 9772a110b585165ce18861661cc08974ff4480cad3ba88610cd633af5f620302
font_01_sfnt_off00007c5d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7C5D 18888 bytes
SHA-256: 6b5b6a1abebc6e7639d5cbcda8bb7fe71fbbddfff5f6d087368832c5ecbe8493

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