Malicious PDF — malware analysis report

Static analysis result for SHA-256 b2c6651fefdbd6ea…

MALICIOUS

PDF

45.4 KB Created: 2021-06-08 10:32:28 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-17
MD5: f0b96a19aca7a694200f1bbf951b53a2 SHA-1: 2eddb0514ecdfb52012411016c524f00e24c98ae SHA-256: b2c6651fefdbd6eaf4c9c7b70ec23d2bb1749454f3fc9d930505f474fd8d38a9
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a high-confidence heuristic indicating it links to a 'game hack' redirector, specifically mentioning 'Roblox Juwelen Hack'. The document body and extracted URLs reinforce this lure, pointing to sites offering game cheats and in-game currency. While no scripts were directly extracted, the PDF structure itself facilitates linking to external malicious content, likely for phishing or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9864

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.tw/app/431946152/roblox-juwelen-hack-mad-paintball-game-hack PDF link annotation
    • http://ipdrs.org/images/free-tiktok-likes-no-human-verification-or-download_GM835599320.pdfIn PDF document text
    • http://ipdrs.org/images/best-free-minecraft-servers_GM479516143.pdfIn PDF document text
    • http://ipdrs.org/images/coin-master-free-spins-promo-code_GM406889139.pdfIn PDF document text
    • http://ipdrs.org/images/free-roblox-accounts-with-robux-that-work-not-banned-2021_GM431946152.pdfIn PDF document text
    • http://ipdrs.org/images/roblox-games-free-online-games_GM431946152.pdfIn PDF document text
    • http://ipdrs.org/images/minecraft-free-ios_GM479516143.pdfIn PDF document text
    • http://ipdrs.org/images/how-do-you-get-robux-on-roblox_GM431946152.pdfIn PDF document text
    • http://ipdrs.org/images/free-robux-gen_GM431946152.pdfIn PDF document text
    • http://ipdrs.org/images/tiktok-minecraft-hacks_GM479516143.pdfIn PDF document text
    • http://ipdrs.org/images/robux-free-promo-codes_GM431946152.pdfIn PDF document text
    • http://ipdrs.org/images/roblox-no-download-hack_GM431946152.pdfIn PDF document text
    • http://ipdrs.org/images/coin-master-daily-free-spins-link-2021_GM406889139.pdfIn PDF document text
    • http://ipdrs.org/images/get-robux-com_GM431946152.pdfIn PDF document text
    • http://ipdrs.org/images/real-coin-master-hack-2021_GM406889139.pdfIn PDF document text
    • http://ipdrs.org/images/free-coin-master-spins-link_GM406889139.pdfIn PDF document text
    • http://ipdrs.org/images/how-to-get-minecraft-windows-10-for-free-2021_GM479516143.pdfIn PDF document text
    • http://ipdrs.org/images/apps-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://ipdrs.org/images/how-to-get-free-robux-without-email_GM431946152.pdfIn PDF document text
    • http://ipdrs.org/images/daily-coin-master-free-spin-link_GM406889139.pdfIn PDF document text
    • http://ipdrs.org/images/free-robux-no-email_GM431946152.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_004_off00004fd3.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4FD3 25976 bytes
SHA-256: cc2fde6572a5ea992f19fa8293e3acdc9f7cf76a81f1e0490853a5b9dd5bfc5d
font_01_sfnt_off00008bad.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8BAD 19400 bytes
SHA-256: 52b7d28c5e0ac2257017e9beb191ae074caba76d079c216bdbc43c95c6139aca