Malicious PDF — malware analysis report

Static analysis result for SHA-256 e2569964f099517e…

MALICIOUS

PDF

33.3 KB Created: 2021-07-06 00:58:33 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-11-22
MD5: d3a89596306e66598dc82eb9db0c3246 SHA-1: dd51997b4108c5971346a466f168aed63b39b8f3 SHA-256: e2569964f099517ee0106535dcbb84d83ddb43def1f1a1a005192ffb35f299e3
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple links to a redirector infrastructure, masquerading as "free Robux" or "game hacks". The primary link, http://netcdn.tw/app/431946152/free-robux-for-free-game-hack, is identified as a malicious redirector. The document body and heuristics indicate a lure designed to entice users to click through to potentially malicious content, likely for credential harvesting or malware delivery.

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/free-robux-for-free-game-hack In PDF document text
    • http://lib.stie-aub.ac.id/repository/how-to-hack-peoples-accounts-on-roblox-2021_GM431946152.pdfIn PDF document text
    • http://lib.stie-aub.ac.id/repository/free-robux-generator-no-human-verification_GM431946152.pdfIn PDF document text
    • http://lib.stie-aub.ac.id/repository/free-spins-on-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://lib.stie-aub.ac.id/repository/all-free-roblox-items-2021_GM431946152.pdfIn PDF document text
    • http://lib.stie-aub.ac.id/repository/hack-roblox-games-2021_GM431946152.pdfIn PDF document text
    • http://lib.stie-aub.ac.id/repository/free-robux-kid-friendly-no-human-verification_GM431946152.pdfIn PDF document text
    • http://lib.stie-aub.ac.id/repository/free-roblox-toy-code-march-3rd-2021_GM431946152.pdfIn PDF document text
    • http://lib.stie-aub.ac.id/repository/doctor-louie-roblox_GM431946152.pdfIn PDF document text
    • http://lib.stie-aub.ac.id/repository/robux-free-gift-card-ord-hack_GM431946152.pdfIn PDF document text
    • http://lib.stie-aub.ac.id/repository/free-robux-2021-pastebin_GM431946152.pdfIn PDF document text
    • http://lib.stie-aub.ac.id/repository/omfg-check-cashes-v3-speed-hack-working-roblox_GM431946152.pdfIn PDF document text
    • http://lib.stie-aub.ac.id/repository/free-coins-and-spins-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://lib.stie-aub.ac.id/repository/easy-robux-today-com_GM431946152.pdfIn PDF document text
    • http://lib.stie-aub.ac.id/repository/free-800-robux_GM431946152.pdfIn PDF document text
    • http://lib.stie-aub.ac.id/repository/daily-free-spin-coin-master-link_GM406889139.pdfIn PDF document text
    • http://lib.stie-aub.ac.id/repository/free-white-hair-roblox_GM431946152.pdfIn PDF document text
    • http://lib.stie-aub.ac.id/repository/coin-master-free-spins-daily_GM406889139.pdfIn PDF document text
    • http://lib.stie-aub.ac.id/repository/coin-master-free-spin-reward-links_GM406889139.pdfIn PDF document text
    • http://lib.stie-aub.ac.id/repository/how-to-hack-a-roblox_GM431946152.pdfIn PDF document text
    • http://lib.stie-aub.ac.id/repository/roblox-arsenal-hack_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_off00002c99.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2C99 22176 bytes
SHA-256: 2b0bd9a6442ef21cfcc7b902494839d835f681d096d2ddc2e0ab2a3aae7d5e04
font_01_sfnt_off00005dcf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5DCF 18716 bytes
SHA-256: ae86725dd70d168e8b5a24377d7effb3bd88f81667aa3e091abc0f5759eb354b

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