Malicious PDF — malware analysis report

Static analysis result for SHA-256 74a589d35f330def…

MALICIOUS

PDF

34.0 KB Created: 2021-07-06 06:22:58 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-07
MD5: eaa1627d6ce4f4b8026c76161a6e4984 SHA-1: eafe84095841e3bbc0ad26bf763038c60ce22a96 SHA-256: 74a589d35f330def271faa6fdb80b67384b64c72a936e84205c6e0f3a83c879b
82 Risk Score

Malware Insights

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

This PDF document employs a lure related to "game hacks" and "robux generators" for Roblox, directing users to external URLs. The primary URL, http://netcdn.tw/app/431946152/how-to-hack-into-someones-roblox-account-game-hack, is associated with a high-severity heuristic for game hack redirects. While no scripts were explicitly extracted, the PDF structure and embedded URLs suggest an attempt to trick users into visiting malicious sites, potentially for credential harvesting or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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 http://netcdn.tw/app/431946152/how-to-hack-into-someones-roblox-account-game-hack PDF link annotation
    • https://www.atrax.hr/files/simple-hack-com-roblox_GM431946152.pdfIn PDF document text
    • https://www.atrax.hr/files/promo-codes-for-free-robux_GM431946152.pdfIn PDF document text
    • https://www.atrax.hr/files/free-roblox-accounts-with-robux-that-work-not-banned_GM431946152.pdfIn PDF document text
    • http://atrax.hr/files/hacker-man-roblox-script_GM431946152.pdfIn PDF document text
    • http://atrax.hr/files/coin-master-hack-2021_GM406889139.pdfIn PDF document text
    • http://atrax.hr/files/all-free-roblox-games_GM431946152.pdfIn PDF document text
    • https://www.atrax.hr/files/free-robux-games-that-actually-work-2021_GM431946152.pdfIn PDF document text
    • http://atrax.hr/files/how-to-get-free-robux-gift-cards_GM431946152.pdfIn PDF document text
    • http://atrax.hr/files/hack-magic-simulator-roblox_GM431946152.pdfIn PDF document text
    • https://www.atrax.hr/files/free-roblox-account-dump_GM431946152.pdfIn PDF document text
    • http://atrax.hr/files/roblox-com-hack_GM431946152.pdfIn PDF document text
    • https://www.atrax.hr/files/free-robux-rbx-tools_GM431946152.pdfIn PDF document text
    • http://atrax.hr/files/free-roblox-for-nikes_GM431946152.pdfIn PDF document text
    • http://atrax.hr/files/coin-master-free-spins-daily-link-updated_GM406889139.pdfIn PDF document text
    • https://www.atrax.hr/files/nerf-fps-roblox-cheat-engine_GM431946152.pdfIn PDF document text
    • http://atrax.hr/files/roblox-free-robux-website_GM431946152.pdfIn PDF document text
    • http://atrax.hr/files/cheat-engine-hack-roblox-rpg_GM431946152.pdfIn PDF document text
    • http://atrax.hr/files/roblox-hack-download-2021_GM431946152.pdfIn PDF document text
    • https://www.atrax.hr/files/tiktok-free-video-download_GM835599320.pdfIn PDF document text
    • http://atrax.hr/files/free-robux-that-actually-works_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
font_00_sfnt_off00002f82.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2F82 21876 bytes
SHA-256: 0bdda192ad03543cd9abed8051db2e4b6a8e868d258c0cb90895a7615264343f
font_01_sfnt_off00005ebc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5EBC 19324 bytes
SHA-256: 24cbb78c2e4d02f15d6dff94c04074d97d349401c8d74d3264b26149d869587d

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