Malicious PDF — malware analysis report

Static analysis result for SHA-256 c5d2f5bdcf9c0910…

MALICIOUS

PDF

34.4 KB Created: 2021-07-04 00:49:37 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-01
MD5: ebcf926631367dbc0122998cc6e042d7 SHA-1: 10e44557349a5aec889284f4c302a2dcfd57f487 SHA-256: c5d2f5bdcf9c091072634fcde2f8b62c924d550060825534e2e0891aec00ee98
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document was flagged as malicious by an ML classifier. The file routes users through malicious redirector infrastructure and presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.

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-people-in-roblox-game-hack PDF link annotation
    • http://library.feb.unila.ac.id/rfeb/repository/how-to-cheat-roblox-mad-city_GM431946152.pdfIn PDF document text
    • http://library.feb.unila.ac.id/rfeb/repository/can-i-play-minecraft-for-free_GM479516143.pdfIn PDF document text
    • http://library.feb.unila.ac.id/rfeb//repository/coin-master-official-fan-page_GM406889139.pdfIn PDF document text
    • http://library.feb.unila.ac.id/rfeb/repository/how-to-hack-coin-master_GM406889139.pdfIn PDF document text
    • http://library.feb.unila.ac.id/rfeb//repository/coin-master-free-spins-link-june-2021_GM406889139.pdfIn PDF document text
    • http://library.feb.unila.ac.id/rfeb/repository/roblox-2all-win-hack_GM431946152.pdfIn PDF document text
    • http://library.feb.unila.ac.id/rfeb/repository/robux-how-to-make-a-promo-code-hack_GM431946152.pdfIn PDF document text
    • http://library.feb.unila.ac.id/rfeb/repository/buzz-roblox-free-robux_GM431946152.pdfIn PDF document text
    • http://library.feb.unila.ac.id/rfeb/repository/roblox-tatoo-free_GM431946152.pdfIn PDF document text
    • http://library.feb.unila.ac.id/rfeb/repository/youtube-how-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://library.feb.unila.ac.id/rfeb/repository/free-unlimited-money-on-roblox-pool-tycoon-4_GM431946152.pdfIn PDF document text
    • http://library.feb.unila.ac.id/rfeb/repository/roblox-games-with-free-radio_GM431946152.pdfIn PDF document text
    • http://library.feb.unila.ac.id/rfeb/repository/how-to-use-mega-to-hack-roblox_GM431946152.pdfIn PDF document text
    • http://library.feb.unila.ac.id/rfeb/repository/minecraft-115-2-hacks_GM479516143.pdfIn PDF document text
    • http://library.feb.unila.ac.id/rfeb/repository/roblox-studio-free-robux_GM431946152.pdfIn PDF document text
    • http://library.feb.unila.ac.id/rfeb//repository/earn-robux-com_GM431946152.pdfIn PDF document text
    • http://library.feb.unila.ac.id/rfeb/repository/roblox-free-premium-method-v3rm_GM431946152.pdfIn PDF document text
    • http://library.feb.unila.ac.id/rfeb//repository/coin-master-pc-hack-tool_GM406889139.pdfIn PDF document text
    • http://library.feb.unila.ac.id/rfeb//repository/how-to-send-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://library.feb.unila.ac.id/rfeb/repository/robux-cheat-engine-2021_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_off00003072.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3072 21956 bytes
SHA-256: bfc3033150edf45cda4afa09c2de254d151986ade25cce132d20e38bb3c1bfd7
font_01_sfnt_off000060e0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x60E0 19148 bytes
SHA-256: 210a0ca19f3049b49adbbe174b6d1900b8bba92406d0cafcc0c0c398ed60933b

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