Malicious PDF — malware analysis report

Static analysis result for SHA-256 102513fe407c01f6…

MALICIOUS

PDF

36.5 KB Created: 2021-06-25 22:28:53 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 75cc9c5bda0a3d7de248a009f4919e22 SHA-1: 09e53948551172bf65d0e0329cd788d8841226d8 SHA-256: 102513fe407c01f62ab79aef7166a66cec0b59aaf00b2ad10d9118a23ee7b564
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/roblox-bee-hive-simulator-how-to-get-a-free-egg-game-hack PDF link annotation
    • http://pustaka.pasca.unand.ac.id/repository/free-robux-and-tickets-2021_GM431946152.pdfIn PDF document text
    • http://pustaka.pasca.unand.ac.id/repository/roblox-hack-tool-android_GM431946152.pdfIn PDF document text
    • http://pustaka.pasca.unand.ac.id/repository/free-robux-script-pastebin_GM431946152.pdfIn PDF document text
    • http://pustaka.pasca.unand.ac.id/repository/gun-hack-roblox-pastebin_GM431946152.pdfIn PDF document text
    • http://pustaka.pasca.unand.ac.id/repository/app-free-robux_GM431946152.pdfIn PDF document text
    • http://pustaka.pasca.unand.ac.id/repository/roblox-sand-simulator-infinite-backpack-code-hack_GM431946152.pdfIn PDF document text
    • http://pustaka.pasca.unand.ac.id/repository/break-free-roblox-id-area_GM431946152.pdfIn PDF document text
    • http://pustaka.pasca.unand.ac.id/repository/what-happens-if-your-hacking-in-roblox_GM431946152.pdfIn PDF document text
    • http://pustaka.pasca.unand.ac.id/repository/roblox-cheat-engine-mac_GM431946152.pdfIn PDF document text
    • http://pustaka.pasca.unand.ac.id/repository/infect-roblox-games-hack_GM431946152.pdfIn PDF document text
    • http://pustaka.pasca.unand.ac.id/repository/how-to-hack-roblox-accounts-2021-agust_GM431946152.pdfIn PDF document text
    • http://pustaka.pasca.unand.ac.id/repository/minecraft-free_GM479516143.pdfIn PDF document text
    • http://pustaka.pasca.unand.ac.id/repository/roblox-free-build_GM431946152.pdfIn PDF document text
    • http://pustaka.pasca.unand.ac.id/repository/oprewards-free-robux_GM431946152.pdfIn PDF document text
    • http://pustaka.pasca.unand.ac.id/repository/play-hacked-roblox_GM431946152.pdfIn PDF document text
    • http://pustaka.pasca.unand.ac.id/repository/roblox-hack-inf-r_GM431946152.pdfIn PDF document text
    • http://pustaka.pasca.unand.ac.id/repository/scripts-para-roblox-hacks_GM431946152.pdfIn PDF document text
    • http://pustaka.pasca.unand.ac.id/repository/project-lazarus-roblox-hack_GM431946152.pdfIn PDF document text
    • http://pustaka.pasca.unand.ac.id/repository/free-robux-giveaway-groups_GM431946152.pdfIn PDF document text
    • http://pustaka.pasca.unand.ac.id/repository/how-to-make-a-free-shirt-in-roblox_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_off0000370e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x370E 22216 bytes
SHA-256: 56bc54a34f0eae00aaa2940e910ad1970de8ef90d575c52b9c5698db60c1d8f2
font_01_sfnt_off0000684d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x684D 19552 bytes
SHA-256: ffcf82c83f86241acaeb95b617184ced7d2cad3e5586a237f3dfdfda6612bee9