Malicious PDF — malware analysis report

Static analysis result for SHA-256 25ec2a6f4162d4ea…

MALICIOUS

PDF

36.0 KB Created: 2021-06-27 22:01:17 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 83828b1a22dac83774c639a0c437da61 SHA-1: f9059d2a55b47ee19fa23778ba2a6a06295a69a0 SHA-256: 25ec2a6f4162d4eac35e773a4047817586a7e3813a3288af942849e5063cad0a
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains embedded URLs and a document body that lures users with game hacking content, specifically targeting Roblox. The primary URL, http://netcdn.co/app/431946152/how-to-hack-roblox-using-inspect-element-game-hack, is a redirector to potentially malicious content. While no scripts were explicitly extracted, the PDF structure and embedded links strongly suggest a phishing or social engineering attack aimed at tricking users into visiting malicious sites.

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/how-to-hack-roblox-using-inspect-element-game-hack PDF link annotation
    • http://elearning.mtsn3lebak.sch.id/__statics/gudangsoal/files/hack-richest-roblox-account-deleted_GM431946152.pdfIn PDF document text
    • http://elearning.mtsn3lebak.sch.id/__statics/gudangsoal/files/how-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://elearning.mtsn3lebak.sch.id/__statics/gudangsoal/files/coin-master-real-hack_GM406889139.pdfIn PDF document text
    • http://elearning.mtsn3lebak.sch.id/__statics/gudangsoal/files/free-op-minecraft-servers_GM479516143.pdfIn PDF document text
    • http://elearning.mtsn3lebak.sch.id/__statics/gudangsoal/files/roblox-hacked-seated_GM431946152.pdfIn PDF document text
    • http://elearning.mtsn3lebak.sch.id/__statics/gudangsoal/files/free-roblox-toy-codes-2021_GM431946152.pdfIn PDF document text
    • http://elearning.mtsn3lebak.sch.id/__statics/gudangsoal/files/free-robux-images_GM431946152.pdfIn PDF document text
    • http://elearning.mtsn3lebak.sch.id/__statics/gudangsoal/files/1x1x1x1x-roblox-hack_GM431946152.pdfIn PDF document text
    • http://elearning.mtsn3lebak.sch.id/__statics/gudangsoal/files/minecraft-pe-mod-menu_GM479516143.pdfIn PDF document text
    • http://elearning.mtsn3lebak.sch.id/__statics/gudangsoal/files/freerobux-hack-us_GM431946152.pdfIn PDF document text
    • http://elearning.mtsn3lebak.sch.id/__statics/gudangsoal/files/free-tiktok-followers-royal-key_GM835599320.pdfIn PDF document text
    • http://elearning.mtsn3lebak.sch.id/__statics/gudangsoal/files/free-hacks-for-coin-master_GM406889139.pdfIn PDF document text
    • http://elearning.mtsn3lebak.sch.id/__statics/gudangsoal/files/free-robux-without-human-verification_GM431946152.pdfIn PDF document text
    • http://elearning.mtsn3lebak.sch.id/__statics/gudangsoal/files/free-minecraft-bedrock-server-hosting-24-7_GM479516143.pdfIn PDF document text
    • http://elearning.mtsn3lebak.sch.id/__statics/gudangsoal/files/coin-master-free-gift-cards_GM406889139.pdfIn PDF document text
    • http://elearning.mtsn3lebak.sch.id/__statics/gudangsoal/files/coin-master-free-spins-facebook_GM406889139.pdfIn PDF document text
    • http://elearning.mtsn3lebak.sch.id/__statics/gudangsoal/files/free-robux-app-real_GM431946152.pdfIn PDF document text
    • http://elearning.mtsn3lebak.sch.id/__statics/gudangsoal/files/coin-free-master_GM406889139.pdfIn PDF document text
    • http://elearning.mtsn3lebak.sch.id/__statics/gudangsoal/files/pubg-uc-pakistan_GM1330123889.pdfIn PDF document text
    • http://elearning.mtsn3lebak.sch.id/__statics/gudangsoal/files/hack-roblox-robux-2021_GM431946152.pdfIn PDF document text
    • https://www.roblox.com/my/tasksIn 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_off00003310.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3310 22904 bytes
SHA-256: 97977badece0bd158e034d49b1a0b106dcb9540b2fec997a2593caade0938aa4
font_01_sfnt_off00006690.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6690 19480 bytes
SHA-256: 4fc1067d6bfc8092c8796d39fa019639750d35d903ec071a0080b6f62ec85b7c

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