Malicious PDF — malware analysis report

Static analysis result for SHA-256 f671ee2d4697f92d…

MALICIOUS

PDF

34.9 KB Created: 2021-07-03 14:04:24 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-11-21
MD5: 0f3b5749bad423a6a4132a9a3bbab00d SHA-1: 1030d0f780f24c34eb8a5108dfcf7014651b31e4 SHA-256: f671ee2d4697f92d79b18cac8a916519aa035eb86b4a70a268b2c23e89d76ec6
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document employs a lure related to game hacks and free currency to trick users into clicking malicious links. The primary link directs to a known malicious redirector infrastructure, which likely serves as a gateway to further malicious content or downloads. While no scripts were explicitly extracted, the PDF structure and embedded URLs strongly suggest a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector critical 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. CRITICAL on its own: the /app/<id>/<slug>-game-hack path shape is unambiguous scam infra, and the host rotates so a host-list match can't be relied on.
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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
  • 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/codes-to-get-free-robux-game-hack In PDF document text
    • http://gts.edu.gh/library/repository/como-tener-mas-seguidores-en-roblox-sin-hacks_GM431946152.pdfIn PDF document text
    • http://gts.edu.gh/library/repository/free-coins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://gts.edu.gh/library/repository/roblox-t-shirt-free_GM431946152.pdfIn PDF document text
    • http://gts.edu.gh/library/repository/coin-master-free-spin-and-coins-links-2021_GM406889139.pdfIn PDF document text
    • http://gts.edu.gh/library/repository/combo-free-roblox-site-v3rmillionnet_GM431946152.pdfIn PDF document text
    • http://gts.edu.gh/library/repository/free-shirts-roblox-2021_GM431946152.pdfIn PDF document text
    • http://gts.edu.gh/library/repository/free-mods-for-minecraft-pe_GM479516143.pdfIn PDF document text
    • http://gts.edu.gh/library/repository/robux-hack-free-robux_GM431946152.pdfIn PDF document text
    • http://gts.edu.gh/library/repository/this-app-will-give-you-free-robux-youtube_GM431946152.pdfIn PDF document text
    • http://gts.edu.gh/library/repository/how-to-hack-roblox-one-piece-millenieum_GM431946152.pdfIn PDF document text
    • http://gts.edu.gh/library/repository/ninja-assassin-roblox-cheat_GM431946152.pdfIn PDF document text
    • http://gts.edu.gh/library/repository/hack-coin-master-free_GM406889139.pdfIn PDF document text
    • http://gts.edu.gh/library/repository/admin-hack-roblox-dowload_GM431946152.pdfIn PDF document text
    • http://gts.edu.gh/library/repository/free-robux-that-actually-works-2021_GM431946152.pdfIn PDF document text
    • http://gts.edu.gh/library/repository/can-you-hack-roblox-for-rebirths_GM431946152.pdfIn PDF document text
    • http://gts.edu.gh/library/repository/how-to-get-free-spins-in-coin-master_GM406889139.pdfIn PDF document text
    • http://gts.edu.gh/library/repository/infinite-speed-roblox-hack_GM431946152.pdfIn PDF document text
    • http://gts.edu.gh/library/repository/hack-to-get-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://gts.edu.gh/library/repository/coin-master-free-spins-cash_GM406889139.pdfIn PDF document text
    • http://gts.edu.gh/library/repository/how-to-download-wurst_GM479516143.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_off00003151.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3151 22488 bytes
SHA-256: 42097f33383de9b29449833a2b9916debc60d43c2e7fe2acf215da84ff126114
font_01_sfnt_off0000637b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x637B 18996 bytes
SHA-256: dae15d86f19837a25368e9980f7c547d0fc236531c79ecd70a0408dcd8fbc7fb

Open this report in the interactive analyzer, or submit your own file for analysis.