Malicious PDF — malware analysis report

Static analysis result for SHA-256 b8d64184e9ce38a6…

MALICIOUS

PDF

48.7 KB Created: 2021-06-03 06:07:32 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: df8224293fb1e6d90b933eb0431dcbc8 SHA-1: d4dee154730d74e9a5fb0a2b7555fb666607a37d SHA-256: b8d64184e9ce38a6885fb8140e4e425b40a81a7a378998f689c524d3c1b9b44e
82 Risk Score

Malware Insights

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

The PDF document contains a lure for game hacks and free currency, directing users to a malicious URL. The ML classifier strongly indicates maliciousness, and the embedded URI points to a known redirector for potentially harmful content. No scripts were extracted, but the document's structure and embedded links suggest it's designed to lead the user to a malicious website for further exploitation.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9796

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 https://netcdn.online/app/431946152/how-to-get-free-roblox-money-game-hack PDF link annotation
    • http://library.fisip.upnvj.ac.id/repository/oginject-co_GM406889139.pdfIn PDF document text
    • http://library.fisip.upnvj.ac.id/repository/village-3-coin-master_GM406889139.pdfIn PDF document text
    • http://library.fisip.upnvj.ac.id/repository/coin-master-free-coins-and-spins-link-today_GM406889139.pdfIn PDF document text
    • http://library.fisip.upnvj.ac.id/repository/coin-master-game-free-spin-download_GM406889139.pdfIn PDF document text
    • http://library.fisip.upnvj.ac.id/repository/coin-master-app-for-free-spins_GM406889139.pdfIn PDF document text
    • http://library.fisip.upnvj.ac.id/repository/how-do-u-get-free-robux_GM431946152.pdfIn PDF document text
    • http://library.fisip.upnvj.ac.id/repository/free-coin-master-gift-link_GM406889139.pdfIn PDF document text
    • http://library.fisip.upnvj.ac.id/repository/coin-master-hack-2021_GM406889139.pdfIn PDF document text
    • http://library.fisip.upnvj.ac.id/repository/robux-fun-hack_GM431946152.pdfIn PDF document text
    • http://library.fisip.upnvj.ac.id/repository/minecraft-login-free_GM479516143.pdfIn PDF document text
    • http://library.fisip.upnvj.ac.id/repository/free-robux-app_GM431946152.pdfIn PDF document text
    • http://library.fisip.upnvj.ac.id/repository/cute-free-roblox-clothes_GM431946152.pdfIn PDF document text
    • http://library.fisip.upnvj.ac.id/repository/free-coin-master-gifts_GM406889139.pdfIn PDF document text
    • http://library.fisip.upnvj.ac.id/repository/free-robux-giveaway-live_GM431946152.pdfIn PDF document text
    • http://library.fisip.upnvj.ac.id/repository/coin-master-free-spin-link-today-2021_GM406889139.pdfIn PDF document text
    • http://library.fisip.upnvj.ac.id/repository/coin-master-free-gold-cards-link-2021ee-spins_GM406889139.pdfIn PDF document text
    • http://library.fisip.upnvj.ac.id/repository/coin-master-20-free-spins-link-today_GM406889139.pdfIn PDF document text
    • http://library.fisip.upnvj.ac.id/repository/roblox-download-pc-free_GM431946152.pdfIn PDF document text
    • http://library.fisip.upnvj.ac.id/repository/free-roblox-accounts-with-robux-that-work-2021_GM431946152.pdfIn PDF document text
    • http://library.fisip.upnvj.ac.id/repository/how-to-get-more-robux-for-free_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_004_off0000527c.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x527C 27048 bytes
SHA-256: 1be37b76d3a397709b9af5a4d3fed1e78add81dd669d7dfda4ba04409af9dd52
font_01_sfnt_off00009109.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9109 2872 bytes
SHA-256: 471b34484c3bee8d5bebbf3396bad215506385dbde547a2422db70e8efc075b4
font_02_sfnt_off00009ac4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9AC4 18592 bytes
SHA-256: b73f1f0d33754a6311a400e0f9b7fa1bed8423beec91854f27c9eb8add8b4fcc

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