Malicious PDF — malware analysis report

Static analysis result for SHA-256 043c2d9243e7fb6e…

MALICIOUS

PDF

44.0 KB Created: 2021-04-24 05:16:50 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-23
MD5: 357a24887b0808fc4f709b3b514de28e SHA-1: 09fffbfb24feb5ff7cb3e957d7b422ae4a3a3d4f SHA-256: 043c2d9243e7fb6efadd95fed14bba24fded68cbfa2a780fc21e6b3976acf9d9
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://netsecure.top/app/431946152/pastebin-roblox-vip-free-robux-no-wait-game-hack PDF link annotation
    • https://www.dikes.badungkab.go.id/new/public/ckfinder/userfiles/files/roblox-vehicle-simulater-hacks.pdfIn PDF document text
    • https://www.dikes.badungkab.go.id/new/public/ckfinder/userfiles/files/roblox-is-it-free.pdfIn PDF document text
    • https://www.dikes.badungkab.go.id/new/public/ckfinder/userfiles/files/como-ser-un-hacker-en-house-of-keys-roblox.pdfIn PDF document text
    • https://www.dikes.badungkab.go.id/new/public/ckfinder/userfiles/files/boku-no-roblox-hack-script.pdfIn PDF document text
    • https://www.dikes.badungkab.go.id/new/public/ckfinder/userfiles/files/free-roblox-hack-no-survey-or-download.pdfIn PDF document text
    • https://www.dikes.badungkab.go.id/new/public/ckfinder/userfiles/files/free-robux-instant-inspect-element.pdfIn PDF document text
    • https://www.dikes.badungkab.go.id/new/public/ckfinder/userfiles/files/how-to-make-anything-free-on-roblox.pdfIn PDF document text
    • https://www.dikes.badungkab.go.id/new/public/ckfinder/userfiles/files/how-to-get-free-roblox-codes.pdfIn PDF document text
    • https://www.dikes.badungkab.go.id/new/public/ckfinder/userfiles/files/counter-blocks-roblox-offensive-hacks-unknowncheats.pdfIn PDF document text
    • https://www.dikes.badungkab.go.id/new/public/ckfinder/userfiles/files/roblox-prison-life-free-game-pass.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_off000044c7.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x44C7 24772 bytes
SHA-256: 5ef8e04952fdab6ba2529a3cbeb232ecc1340accd17c8f8df2dff2952ad046aa
font_01_sfnt_off00007d6c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7D6C 2832 bytes
SHA-256: 77ae1c4cffa647a8fd533dfa4102e94364989f9e80b9cd131876e9d1005899a2
font_02_sfnt_off0000871d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x871D 19200 bytes
SHA-256: 4ff005218568f4fd063b3e1d1de280f810c4952b53e905ec935752d600476d6f

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