Malicious PDF — malware analysis report

Static analysis result for SHA-256 9d44c1e7a72a5167…

MALICIOUS

PDF

34.9 KB Created: 2021-06-27 17:52:01 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-17
MD5: f2bfb00fdd4e3d83919bbb6812749e32 SHA-1: 9e880151627e57ecee81e451b8573d32e0d7ddea SHA-256: 9d44c1e7a72a516719517baad3ce9ab4791f26db4842181bdf259ebf5fd2c6a9
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF document contains a lure related to Roblox gift card codes and game hacks, directing users to a suspicious URL. This URL, http://netcdn.co/app/431946152/roblox-gift-card-free-codes-2021-game-hack, is likely part of a phishing or malware distribution scheme. The presence of multiple related PDF files hosted on a subdomain of 'study.mtsn3limapuluhkota.sch.id' further suggests a coordinated effort to lure victims.

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-gift-card-free-codes-2021-game-hack PDF link annotation
    • http://study.mtsn3limapuluhkota.sch.id/__statics/gudangsoal/files/roblox-points_GM431946152.pdfIn PDF document text
    • http://study.mtsn3limapuluhkota.sch.id/__statics/gudangsoal/files/huskybuckscom-free-robux_GM431946152.pdfIn PDF document text
    • http://study.mtsn3limapuluhkota.sch.id/__statics/gudangsoal/files/how-to-hack-peoples-roblox-accounts_GM431946152.pdfIn PDF document text
    • http://study.mtsn3limapuluhkota.sch.id/__statics/gudangsoal/files/roblox-free-bandana_GM431946152.pdfIn PDF document text
    • http://study.mtsn3limapuluhkota.sch.id/__statics/gudangsoal/files/minecraft-coins-free_GM479516143.pdfIn PDF document text
    • http://study.mtsn3limapuluhkota.sch.id/__statics/gudangsoal/files/roblox-free-robux-codes_GM431946152.pdfIn PDF document text
    • http://study.mtsn3limapuluhkota.sch.id/__statics/gudangsoal/files/get-free-robux-by-doing-surveys_GM431946152.pdfIn PDF document text
    • http://study.mtsn3limapuluhkota.sch.id/__statics/gudangsoal/files/roblox-lumber-tycoon-2-hacks_GM431946152.pdfIn PDF document text
    • http://study.mtsn3limapuluhkota.sch.id/__statics/gudangsoal/files/free-spin-coin-master-link-2021_GM406889139.pdfIn PDF document text
    • http://study.mtsn3limapuluhkota.sch.id/__statics/gudangsoal/files/free-roblox-toy-codes-2021_GM431946152.pdfIn PDF document text
    • http://study.mtsn3limapuluhkota.sch.id/__statics/gudangsoal/files/earn-free-robux-on-roblox_GM431946152.pdfIn PDF document text
    • http://study.mtsn3limapuluhkota.sch.id/__statics/gudangsoal/files/anarchy-roblox-hack_GM431946152.pdfIn PDF document text
    • http://study.mtsn3limapuluhkota.sch.id/__statics/gudangsoal/files/minecraft-for-chromebook-free_GM479516143.pdfIn PDF document text
    • http://study.mtsn3limapuluhkota.sch.id/__statics/gudangsoal/files/cheat-in-roblox-robux-2021_GM431946152.pdfIn PDF document text
    • http://study.mtsn3limapuluhkota.sch.id/__statics/gudangsoal/files/coin-master-links-to-free-spins_GM406889139.pdfIn PDF document text
    • http://study.mtsn3limapuluhkota.sch.id/__statics/gudangsoal/files/easy-robux-generator_GM431946152.pdfIn PDF document text
    • http://study.mtsn3limapuluhkota.sch.id/__statics/gudangsoal/files/how-to-create-a-minecraft-server-for-free_GM479516143.pdfIn PDF document text
    • http://study.mtsn3limapuluhkota.sch.id/__statics/gudangsoal/files/coin-master-app_GM406889139.pdfIn PDF document text
    • http://study.mtsn3limapuluhkota.sch.id/__statics/gudangsoal/files/free-coin-master-spins-for-today_GM406889139.pdfIn PDF document text
    • http://study.mtsn3limapuluhkota.sch.id/__statics/gudangsoal/files/old-roblox-accounts-for-free_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_off0000321b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x321B 21832 bytes
SHA-256: 2068f6d8a3a9747cd294ade6bf63f0d252b4755a6b28bce88349a9e5596fddbc
font_01_sfnt_off00006238.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6238 19452 bytes
SHA-256: 62af9e6006bec6b80c882e2d67d5aab9938eb572201fbbccf40e986fefd38ee8

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