Malicious PDF — malware analysis report

Static analysis result for SHA-256 2ce2b44395e10906…

MALICIOUS

PDF

42.7 KB Created: 2021-05-16 01:44:37 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: c604dbc41e72932399f2740f25bcd1f4 SHA-1: 173321b58f8cb2980a0a3489cd04f420a81cce52 SHA-256: 2ce2b44395e109065e6ec1f25b5ac25e1a0cc69728573c572525f8a1b57b50d4
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 0.9971

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/406889139/how-to-get-coin-master-free-spins-in-email-game-hack PDF link annotation
    • http://www.gox.pt/images/lastrick-com-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://www.gox.pt/images/how-to-hack-someone-on-roblox_GM431946152.pdfIn PDF document text
    • http://www.gox.pt/images/roblox-adopt-me-hacks-2021_GM431946152.pdfIn PDF document text
    • http://www.gox.pt/images/robuxy-com-free-robux_GM431946152.pdfIn PDF document text
    • http://www.gox.pt/images/minecraft-114-download_GM479516143.pdfIn PDF document text
    • http://www.gox.pt/images/hacking-apps-for-roblox_GM431946152.pdfIn PDF document text
    • http://www.gox.pt/images/coin-master-free-generator_GM406889139.pdfIn PDF document text
    • http://www.gox.pt/images/minecraft-coins-free_GM479516143.pdfIn PDF document text
    • http://www.gox.pt/images/roblox-hack-download_GM431946152.pdfIn PDF document text
    • http://www.gox.pt/images/coin-master-free-download_GM406889139.pdfIn PDF document text
    • http://www.gox.pt/images/promo-code-free-robux_GM431946152.pdfIn PDF document text
    • http://www.gox.pt/images/free-roblox-gift-card-codes-2021-unused_GM431946152.pdfIn PDF document text
    • http://www.gox.pt/images/how-to-get-free-pets-in-adopt-me-roblox_GM431946152.pdfIn PDF document text
    • http://www.gox.pt/images/roblox-script-executor-free_GM431946152.pdfIn PDF document text
    • http://www.gox.pt/images/minecraft-noob-vs-pro-vs-hacker_GM479516143.pdfIn PDF document text
    • http://www.gox.pt/images/minecraft-apk-free-download-016-0_GM479516143.pdfIn PDF document text
    • http://www.gox.pt/images/roblox-hack-ga_GM431946152.pdfIn PDF document text
    • http://www.gox.pt/images/coin-master-hack-spin-160-pro_GM406889139.pdfIn PDF document text
    • http://www.gox.pt/images/infinite-robux_GM431946152.pdfIn PDF document text
    • http://www.gox.pt/images/pop-slots-free-vegas-casino-slot-machine-game-coin-master_GM406889139.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_off00004a97.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4A97 25112 bytes
SHA-256: ef65797db5046bb334d40dfe8d880fe0523c987bd5f068d63f5a6aeeaf51fc2b
font_01_sfnt_off0000849a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x849A 18384 bytes
SHA-256: bc53f1fb47f57c74fdee9351068e660e83537be046fbdaf3d8b5fad9dc1cd1bd