Malicious PDF — malware analysis report

Static analysis result for SHA-256 eda2e3a18cb9311c…

MALICIOUS

PDF

34.8 KB Created: 2021-07-04 08:40:28 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: c8e4345854ecf69b31ed82690468bee0 SHA-1: a36abe9aa83b92a258b888caf9e0351137d89e18 SHA-256: eda2e3a18cb9311cdf45ce05b5bf247d86195643cbde995316eed3e750b80f27
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/hacks-para-mad-city-roblox-2021-game-hack PDF link annotation
    • https://digilib.stimlog.ac.id/repository/minecraft-menu_GM479516143.pdfIn PDF document text
    • https://digilib.stimlog.ac.id/repository/rbxfree-com-free-robux-2021_GM431946152.pdfIn PDF document text
    • https://digilib.stimlog.ac.id/repository/free-mods-for-coin-master_GM406889139.pdfIn PDF document text
    • https://digilib.stimlog.ac.id/repository/john-doe-roblox-hacker-march-18_GM431946152.pdfIn PDF document text
    • https://digilib.stimlog.ac.id/repository/slx-buy-free-roblox_GM431946152.pdfIn PDF document text
    • https://digilib.stimlog.ac.id/repository/roblox-free-items-event_GM431946152.pdfIn PDF document text
    • https://digilib.stimlog.ac.id/repository/free-robux-http-robux-codes_GM431946152.pdfIn PDF document text
    • https://digilib.stimlog.ac.id/repository/robux-hack-install_GM431946152.pdfIn PDF document text
    • http://digilib.stimlog.ac.id/repository/new-hack-for-roblox-deathrun-2021-pc_GM431946152.pdfIn PDF document text
    • http://digilib.stimlog.ac.id/repository/free-minecraft-client_GM479516143.pdfIn PDF document text
    • https://digilib.stimlog.ac.id/repository/how-do-you-hack-free-robux-2021-on-pc_GM431946152.pdfIn PDF document text
    • https://digilib.stimlog.ac.id/repository/how-to-hack-someones-minecraft-account_GM479516143.pdfIn PDF document text
    • https://digilib.stimlog.ac.id/repository/how-to-hack-games-in-roblox-on-ios_GM431946152.pdfIn PDF document text
    • http://digilib.stimlog.ac.id/repository/free-roblox-lua-exploits_GM431946152.pdfIn PDF document text
    • http://digilib.stimlog.ac.id/repository/roblox-free-roblox_GM431946152.pdfIn PDF document text
    • https://digilib.stimlog.ac.id/repository/free-robux-hack-on-phone-no-download_GM431946152.pdfIn PDF document text
    • https://digilib.stimlog.ac.id/repository/robux-free-robux_GM431946152.pdfIn PDF document text
    • http://digilib.stimlog.ac.id/repository/free-roblox-download-for-mac_GM431946152.pdfIn PDF document text
    • https://digilib.stimlog.ac.id/repository/coin-master-free-coins-and-spins-today_GM406889139.pdfIn PDF document text
    • https://digilib.stimlog.ac.id/repository/free-robux-hack-on-computer_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_off00002fee.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2FEE 21788 bytes
SHA-256: 34dcd8e5b7d33c2a3f5a1ee5a6e0ebebc75e03fadef683ab24882ae15dad3459
font_01_sfnt_off00005fe2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5FE2 19984 bytes
SHA-256: 0f56a6818fd1f23835d1eec2741048012925fa396e540e2ba322c52bb565b992

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