Malicious PDF — malware analysis report

Static analysis result for SHA-256 42f08024e0e374a8…

MALICIOUS

PDF

34.3 KB Created: 2021-07-09 14:11:33 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-01
MD5: 338089f400a3bf5fae31c8e16ad47995 SHA-1: 2f76b6d9297556174866b46f08622a9b47bade89 SHA-256: 42f08024e0e374a8db3ae4da957fc7b9c11de48c4501405d6913aef3e7f8eac4
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.tw/app/431946152/free-robux-site-game-hack PDF link annotation
    • https://www.belajardaring.misnu.sch.id/__statics/gudangsoal/files/how-to-become-a-hacker-on-roblox-ipad_GM431946152.pdfIn PDF document text
    • https://www.belajardaring.misnu.sch.id/__statics/gudangsoal/files/free-100-robux_GM431946152.pdfIn PDF document text
    • https://www.belajardaring.misnu.sch.id/__statics/gudangsoal/files/free-falling-simulator-roblox_GM431946152.pdfIn PDF document text
    • https://www.belajardaring.misnu.sch.id/__statics/gudangsoal/files/roblox-game-download-hacks-studio-login-guide-unofficial-chala-dar_GM431946152.pdfIn PDF document text
    • https://www.belajardaring.misnu.sch.id/__statics/gudangsoal/files/roblox-free-romdom-acounts_GM431946152.pdfIn PDF document text
    • https://www.belajardaring.misnu.sch.id/__statics/gudangsoal/files/free-robux-offers_GM431946152.pdfIn PDF document text
    • https://www.belajardaring.misnu.sch.id/__statics/gudangsoal/files/free-robux-no-verification-no-download_GM431946152.pdfIn PDF document text
    • https://www.belajardaring.misnu.sch.id/__statics/gudangsoal/files/free-robux-pastebin_GM431946152.pdfIn PDF document text
    • https://www.belajardaring.misnu.sch.id/__statics/gudangsoal/files/free-roblox-oder-accounts_GM431946152.pdfIn PDF document text
    • https://www.belajardaring.misnu.sch.id/__statics/gudangsoal/files/how-to-get-verified-on-tiktok-for-free-2021_GM835599320.pdfIn PDF document text
    • https://www.belajardaring.misnu.sch.id/__statics/gudangsoal/files/how-to-get-wall-hacks-in-roblox_GM431946152.pdfIn PDF document text
    • https://www.belajardaring.misnu.sch.id/__statics/gudangsoal/files/how-to-get-free-robux-2021-no-human-verification-pc_GM431946152.pdfIn PDF document text
    • https://www.belajardaring.misnu.sch.id/__statics/gudangsoal/files/free-roblox-mouth-pack_GM431946152.pdfIn PDF document text
    • https://www.belajardaring.misnu.sch.id/__statics/gudangsoal/files/free-robux-no-verification_GM431946152.pdfIn PDF document text
    • https://www.belajardaring.misnu.sch.id/__statics/gudangsoal/files/best-free-way-to-get-robux_GM431946152.pdfIn PDF document text
    • https://www.belajardaring.misnu.sch.id/__statics/gudangsoal/files/roblox-shionbi-life-max-lvl-hack-robloxdailt_GM431946152.pdfIn PDF document text
    • https://www.belajardaring.misnu.sch.id/__statics/gudangsoal/files/ballas-t-shirt-roblox-free_GM431946152.pdfIn PDF document text
    • https://www.belajardaring.misnu.sch.id/__statics/gudangsoal/files/noob-vs-pro-vs-hacker-vs-god-roblox-booga-booga_GM431946152.pdfIn PDF document text
    • https://www.belajardaring.misnu.sch.id/__statics/gudangsoal/files/free-roblox-generator_GM431946152.pdfIn PDF document text
    • https://www.belajardaring.misnu.sch.id/__statics/gudangsoal/files/user-hack-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_off00002f6d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2F6D 22328 bytes
SHA-256: 7e4dc33ae50f82572d60b7fc42c2d93c553165c628e4a633d68b20066b4aae06
font_01_sfnt_off0000613f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x613F 18940 bytes
SHA-256: f9f1f7c9b928d5f6ce6bf7d440be5e4499b495936a7ada93416c0d904b92215a

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