Malicious PDF — malware analysis report

Static analysis result for SHA-256 133b339b6241c86a…

MALICIOUS

PDF

33.6 KB Created: 2021-07-01 18:11:21 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-01
MD5: ced08320be68f581f0473f35c2e1c493 SHA-1: e17038973efc620b95dba770a61146a69258102a SHA-256: 133b339b6241c86af03f7c3abea27a6cdaf19966d8278c186080946a01771ded
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 0.9824

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-synapse-exploit-free-cracked-game-hack PDF link annotation
    • http://lib.mappifhui.org/repository/free-roblox-items-glitch_GM431946152.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/how-to-get-free-roblox-gift-cards_GM431946152.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/how-to-hack-coin-master-with-root_GM406889139.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/vehcle-simulator-hack-roblox_GM431946152.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/how-to-get-free-roblox-in-epping_GM431946152.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/www-roblox-com-free-robux_GM431946152.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/roblox-hack-generator_GM431946152.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/roblox-apk-hack_GM431946152.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/can-you-hack-coin-master_GM406889139.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/executor-hack-for-roblox_GM431946152.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/best-free-muskets-in-roblox_GM431946152.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/get-free-robux-generator_GM431946152.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/rblx-gg-free-robux_GM431946152.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/how-to-get-everything-for-free-on-roblox_GM431946152.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/application-hack-roblox_GM431946152.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/apps-that-give-you-free-robux_GM431946152.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/free-roblox-toy-codes-not-used_GM431946152.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/how-to-get-free-robux-ipad-2021_GM431946152.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/speed-hack-roblox-pastebin_GM431946152.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/free-robux-now_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002a9b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2A9B 22476 bytes
SHA-256: f185cc59e8cc5cc67d067d2ee8191de73f34316b7965a25a3f7c9698ed3767f9
font_01_sfnt_off00005cd1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5CD1 19576 bytes
SHA-256: a0f1c13e75b3c774028d53d15a3f0677caaded5b1aef87e63ead7c60793f3f82

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