Malicious PDF — malware analysis report

Static analysis result for SHA-256 4be5ef1ce82ee689…

MALICIOUS

PDF

36.5 KB Created: 2021-06-22 01:48:45 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-07
MD5: 0a30ff2d3679ee158bbcc60409b6b2e8 SHA-1: 028afd40d89152bc76a270b0d98899807e2a9425 SHA-256: 4be5ef1ce82ee6899e04352a30631d738ab623f053986283a72601c6ed6d8f32
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains lures for 'free Robux' and game hacks, directing users to the URL http://netcdn.co/app/431946152/free-robux-games-that-actually-work-game-hack. This URL is flagged as a redirector for game hacks, indicating a social engineering tactic to entice clicks. The ML classifier also strongly flagged this PDF as malicious.

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.co/app/431946152/free-robux-games-that-actually-work-game-hack PDF link annotation
    • http://learning.mtsn3banyuwangi.sch.id/__statics/gudangsoal/files/coinmaster_GM406889139.pdfIn PDF document text
    • http://learning.mtsn3banyuwangi.sch.id/__statics/gudangsoal/files/25-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://learning.mtsn3banyuwangi.sch.id/__statics/gudangsoal/files/coin-master-free-spins-link-blogspot-april-2021_GM406889139.pdfIn PDF document text
    • http://learning.mtsn3banyuwangi.sch.id/__statics/gudangsoal/files/free-robux-websites-that-work_GM431946152.pdfIn PDF document text
    • http://learning.mtsn3banyuwangi.sch.id/__statics/gudangsoal/files/coin-master-free-spins-2021_GM406889139.pdfIn PDF document text
    • http://learning.mtsn3banyuwangi.sch.id/__statics/gudangsoal/files/roblox-land-free-robux_GM431946152.pdfIn PDF document text
    • http://learning.mtsn3banyuwangi.sch.id/__statics/gudangsoal/files/bit-slicer-speed-hack-roblox_GM431946152.pdfIn PDF document text
    • http://learning.mtsn3banyuwangi.sch.id/__statics/gudangsoal/files/roblox-hack-logo_GM431946152.pdfIn PDF document text
    • http://learning.mtsn3banyuwangi.sch.id/__statics/gudangsoal/files/coin-master-pc-hack-download_GM406889139.pdfIn PDF document text
    • http://learning.mtsn3banyuwangi.sch.id/__statics/gudangsoal/files/how-to-get-free-coins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://learning.mtsn3banyuwangi.sch.id/__statics/gudangsoal/files/coin-master-hack-apk-2021_GM406889139.pdfIn PDF document text
    • http://learning.mtsn3banyuwangi.sch.id/__statics/gudangsoal/files/free-robux-easy-and-fast_GM431946152.pdfIn PDF document text
    • http://learning.mtsn3banyuwangi.sch.id/__statics/gudangsoal/files/minecraft-hacks-18-9_GM479516143.pdfIn PDF document text
    • http://learning.mtsn3banyuwangi.sch.id/__statics/gudangsoal/files/free-online-games-like-minecraft_GM479516143.pdfIn PDF document text
    • http://learning.mtsn3banyuwangi.sch.id/__statics/gudangsoal/files/free-catalog-items-roblox-pastebin_GM431946152.pdfIn PDF document text
    • http://learning.mtsn3banyuwangi.sch.id/__statics/gudangsoal/files/coin-master-free-spins-hack-but-no-surveys_GM406889139.pdfIn PDF document text
    • http://learning.mtsn3banyuwangi.sch.id/__statics/gudangsoal/files/roblox-hack-unlimited-robux_GM431946152.pdfIn PDF document text
    • http://learning.mtsn3banyuwangi.sch.id/__statics/gudangsoal/files/free-exploit-roblox-2021_GM431946152.pdfIn PDF document text
    • http://learning.mtsn3banyuwangi.sch.id/__statics/gudangsoal/files/free-robux-place_GM431946152.pdfIn PDF document text
    • http://learning.mtsn3banyuwangi.sch.id/__statics/gudangsoal/files/roblox-com-r_GM431946152.pdfIn PDF document text
    • https://www.roblox.com/.IIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003447.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3447 22748 bytes
SHA-256: 7f55151faa4054398457771ff16963fa08fa96757531c7ff2516786fdbf9a9b7
font_01_sfnt_off0000675c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x675C 19868 bytes
SHA-256: d6d6c21ebfb94ec66429bf50c50e6ebacf9910fb21d66d19805e4ed0a6b06ac7

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