Malicious PDF — malware analysis report

Static analysis result for SHA-256 8beb99398ec0824b…

MALICIOUS

PDF

34.0 KB Created: 2021-07-05 12:15:30 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-27
MD5: e0c28b99705e47af9873c962e0dda12a SHA-1: c6092cb1c460b04eabb2ecd59d3cbb3591d08a07 SHA-256: 8beb99398ec0824be0787f59850697aac6e5767844bfdc0d54f7e5ff2130bcef
160 Risk Score

Malware Insights

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

The PDF document contains multiple links to a known malicious redirector infrastructure, specifically http://netcdn.tw/app/479516143/toolbox-for-minecraft-game-hack, which is presented as a lure for game hacks. The document body and heuristics indicate this is a social engineering tactic to trick users into visiting malicious sites. While no scripts were explicitly extracted, the nature of the links and the ML classifier's high confidence suggest the PDF is designed to exploit vulnerabilities or lead to further malicious content 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/479516143/toolbox-for-minecraft-game-hack In PDF document text
    • http://muslib.unmus.ac.id/repository/if-everything-in-roblox-was-free_GM431946152.pdfIn PDF document text
    • http://muslib.unmus.ac.id/repository/village-3-coin-master_GM406889139.pdfIn PDF document text
    • http://muslib.unmus.ac.id//repository/how-to-get-free-roblox-money_GM431946152.pdfIn PDF document text
    • http://muslib.unmus.ac.id/repository/free-robux-hack-on-pc-2021_GM431946152.pdfIn PDF document text
    • http://muslib.unmus.ac.id/repository/2021-free-robux_GM431946152.pdfIn PDF document text
    • http://muslib.unmus.ac.id/repository/money-cheats-in-roblox-pokemon-galaxy_GM431946152.pdfIn PDF document text
    • http://muslib.unmus.ac.id/repository/how-to-get-free-roblox-money-2021_GM431946152.pdfIn PDF document text
    • http://muslib.unmus.ac.id/repository/minecraft-rtx-download-free_GM479516143.pdfIn PDF document text
    • http://muslib.unmus.ac.id/repository/minecraft-115-2-hacks_GM479516143.pdfIn PDF document text
    • http://muslib.unmus.ac.id/repository/tiktok-for-free-download_GM835599320.pdfIn PDF document text
    • http://muslib.unmus.ac.id/repository/roblox-script-hack-trading-game-simulator_GM431946152.pdfIn PDF document text
    • http://muslib.unmus.ac.id/repository/oneapprewards-com-roblox-hack_GM431946152.pdfIn PDF document text
    • http://muslib.unmus.ac.id/repository/getting-free-robux-inspect_GM431946152.pdfIn PDF document text
    • http://muslib.unmus.ac.id/repository/free-robux-hack-no-human-verification-or-survey_GM431946152.pdfIn PDF document text
    • http://muslib.unmus.ac.id/repository/now-roblox-logo-gives-free-robux-robuxmaniac_GM431946152.pdfIn PDF document text
    • http://muslib.unmus.ac.id//repository/coin-master-on-facebook_GM406889139.pdfIn PDF document text
    • http://muslib.unmus.ac.id/repository/free-roblox-gamepasses-app_GM431946152.pdfIn PDF document text
    • http://muslib.unmus.ac.id/repository/free-backpack-roblox-catolog_GM431946152.pdfIn PDF document text
    • http://muslib.unmus.ac.id/repository/free-robux-2021-codes_GM431946152.pdfIn PDF document text
    • http://muslib.unmus.ac.id/repository/how-to-get-free-wings-on-roblox_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_off00002fcb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2FCB 22412 bytes
SHA-256: cc2ad96392d84febd481cfa5a029cdfcbc89fc8b6076f079f22b3c76e846ca05
font_01_sfnt_off000061c6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x61C6 18440 bytes
SHA-256: 1cf31c3bb7bdb96ad8627629978fa978d99bbfc1b3e6ff44e7e3c3bf643f3fe7

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