Malicious PDF — malware analysis report

Static analysis result for SHA-256 448a9efc3b833953…

MALICIOUS

PDF

47.1 KB Created: 2021-04-25 05:45:46 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-23
MD5: 2c3a40268062a29c99370c47b100aa69 SHA-1: 48fe306b1cf4543dd5089baf7a7f532137afe60c SHA-256: 448a9efc3b83395349ec76e36b761cebb32e62e54ad9ea283482d5ca1c2947e6
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 0.9747

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.xyz/app/431946152/free-ways-to-earn-robux-game-hack PDF link annotation
    • https://ekbm.mankotapasuruan.sch.id/__statics/gudangsoal/files/roblox-cbro-free-skins.pdfIn PDF document text
    • https://ekbm.mankotapasuruan.sch.id/__statics/gudangsoal/files/how-to-get-free-faces-on-roblox-no-download.pdfIn PDF document text
    • https://ekbm.mankotapasuruan.sch.id/__statics/gudangsoal/files/is-there-actually-a-free-robux-hack.pdfIn PDF document text
    • https://ekbm.mankotapasuruan.sch.id/__statics/gudangsoal/files/noclip-hack-roblox-jailbreak-download.pdfIn PDF document text
    • https://ekbm.mankotapasuruan.sch.id/__statics/gudangsoal/files/roblox-free-robux-not-fake-isgd-5qok6w.pdfIn PDF document text
    • https://ekbm.mankotapasuruan.sch.id/__statics/gudangsoal/files/give-me-free-robux-plz.pdfIn PDF document text
    • https://ekbm.mankotapasuruan.sch.id/__statics/gudangsoal/files/roblox-titanic-free-radi-ov3rmillion.pdfIn PDF document text
    • https://ekbm.mankotapasuruan.sch.id/__statics/gudangsoal/files/how-to-hack-any-account-roblox.pdfIn PDF document text
    • https://ekbm.mankotapasuruan.sch.id/__statics/gudangsoal/files/boku-no-roblox-remastered-lv-up-hack.pdfIn PDF document text
    • https://ekbm.mankotapasuruan.sch.id/__statics/gudangsoal/files/youtube-is-getting-a-roblox-account-hack.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_003_off00004006.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4006 24984 bytes
SHA-256: f9c46155db516ce70f521cec04ab05936149c88c24a8bb237705d2d0dab9b11b
font_01_sfnt_off00007a0c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7A0C 11440 bytes
SHA-256: 154d59d1680f2d1e38ccb783d6997f344290d121007e51df331726de4128c12e
font_02_sfnt_off0000952d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x952D 18620 bytes
SHA-256: 1853f7d108d914a38fd245ef07baa075e26cb8ad87a8736c7f270d1152f8600a

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