Malicious PDF — malware analysis report

Static analysis result for SHA-256 007573ba7f75fd72…

MALICIOUS

PDF

34.5 KB Created: 2021-06-29 17:08:10 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: f12230a64feb5ee17e09f9fbf49ad5ff SHA-1: 7a9f9c7d1d5b25b30e3321e089d963627eccb198 SHA-256: 007573ba7f75fd725a7b2ca31cf5e08ad3087b1c2b944c453211b0bb951d8e67
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 0.9980

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/robux-hack-pastebin-2021-game-hack PDF link annotation
    • http://library.umuslim.ac.id/repository/hack-roblox-ninja-legends_GM431946152.pdfIn PDF document text
    • http://library.umuslim.ac.id/repository/pokemon-go-fake-gps_GM1094591345.pdfIn PDF document text
    • http://library.umuslim.ac.id/repository/coin-master-hack-version-ios_GM406889139.pdfIn PDF document text
    • http://library.umuslim.ac.id/repository/free-knives-assassin-roblox_GM431946152.pdfIn PDF document text
    • http://library.umuslim.ac.id/repository/free-roblox-birthday-banner_GM431946152.pdfIn PDF document text
    • http://library.umuslim.ac.id//repository/robux-offer-wall_GM431946152.pdfIn PDF document text
    • http://library.umuslim.ac.id/repository/get-robux-for-free-easy_GM431946152.pdfIn PDF document text
    • http://library.umuslim.ac.id//repository/roblox-robux_GM431946152.pdfIn PDF document text
    • http://library.umuslim.ac.id/repository/minecraft-education-edition-free_GM479516143.pdfIn PDF document text
    • http://library.umuslim.ac.id/repository/how-to-use-cheats-in-roblox_GM431946152.pdfIn PDF document text
    • http://library.umuslim.ac.id/repository/how-to-get-free-robux-without-doing-anything-2021_GM431946152.pdfIn PDF document text
    • http://library.umuslim.ac.id/repository/free-robux-hack-tool_GM431946152.pdfIn PDF document text
    • http://library.umuslim.ac.id/repository/how-to-get-free-robux-without-verifying_GM431946152.pdfIn PDF document text
    • http://library.umuslim.ac.id/repository/windows-10-minecraft-hacks_GM479516143.pdfIn PDF document text
    • http://library.umuslim.ac.id/repository/master-coin-free-spin_GM406889139.pdfIn PDF document text
    • http://library.umuslim.ac.id/repository/how-to-get-free-robux-on-roblox-2021_GM431946152.pdfIn PDF document text
    • http://library.umuslim.ac.id/repository/why-are-you-cheating-on-your-roblox-girlfriend_GM431946152.pdfIn PDF document text
    • http://library.umuslim.ac.id/repository/codes-how-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://library.umuslim.ac.id/repository/coin-master-free-stuff-links_GM406889139.pdfIn PDF document text
    • http://library.umuslim.ac.id/repository/free-robux-no-downloading-and-no-email_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002f39.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2F39 22180 bytes
SHA-256: 9b976e72f8552e63ad0111b794f6aa6ed423f2fd171116bbac32f34cd651aebe
font_01_sfnt_off00006016.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6016 19504 bytes
SHA-256: 22c3b9368ee66ea7f7743a39577807f1346cab8937d1c78481398bd9cdc1ad6e

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