Malicious PDF — malware analysis report

Static analysis result for SHA-256 5ad9a919e0ee1b48…

MALICIOUS

PDF

43.1 KB Created: 2021-05-03 23:53:23 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 367e5fd79df328d019af39f28d28ed57 SHA-1: 205f540eb9acc9936c227c28e151ea2399544e5a SHA-256: 5ad9a919e0ee1b4864e761aa84c23f7b263ef40e59abfaafdbc5653438292f01
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 0.9868

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/roblox-robux-pastebin-hack-2021-game-hack PDF link annotation
    • https://lib.stie-yai.ac.id/repository/roblox-hack-download-windows-10.pdfIn PDF document text
    • https://lib.stie-yai.ac.id/repository/free-roblox-character-codes.pdfIn PDF document text
    • https://lib.stie-yai.ac.id/repository/roblox-insert-tool-hack.pdfIn PDF document text
    • https://lib.stie-yai.ac.id/repository/free-robux-lmao.pdfIn PDF document text
    • https://lib.stie-yai.ac.id/repository/roblox-one-piece-millennium-stats-hack-script.pdfIn PDF document text
    • https://lib.stie-yai.ac.id/repository/john-doe-hacker-on-roblox.pdfIn PDF document text
    • https://lib.stie-yai.ac.id/repository/april-fools-day-2021-hack-roblox.pdfIn PDF document text
    • https://lib.stie-yai.ac.id/repository/free-robux-websites-scam-link.pdfIn PDF document text
    • https://lib.stie-yai.ac.id/repository/roblox-hack-exploit-spvx-2021.pdfIn PDF document text
    • https://lib.stie-yai.ac.id/repository/100-free-robux-no-human-verification.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_off00003ea6.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x3EA6 26488 bytes
SHA-256: f8454d2c499904356ea0ec521948e1b4cacee5a9f2381a8a11b0c12b1513d9c0
font_01_sfnt_off00007a3d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7A3D 2848 bytes
SHA-256: 4737c2778a085e0cb49e73f3b054b1a71e3f40720d213b4bfda97f95a31bfbf1
font_02_sfnt_off000083ff.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x83FF 19100 bytes
SHA-256: b9f69bf31e11bd3dd11533b2a61062e479042f3c91558a989266c4802a94998f

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