Malicious PDF — malware analysis report

Static analysis result for SHA-256 0d8873bc228cdc91…

MALICIOUS

PDF

34.6 KB Created: 2021-06-17 18:41:25 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-17
MD5: 90f7e19e1c31b5de385036e39b3be947 SHA-1: fb6c56ece4d10f4b3606e46dc78f76b90279a036 SHA-256: 0d8873bc228cdc910bf4013d18b43f3742e1188c51848d2b16e3660154088ade
82 Risk Score

Malware Insights

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

The PDF document contains multiple embedded links that mimic 'free generator' or 'hack' lures for popular games. These links, such as 'http://netcdn.co/app/431946152/roblox-free-hats-game-game-hack', are designed to redirect users to potentially malicious websites. The ML classifier also strongly indicated maliciousness, supporting the assessment of a phishing or scam attempt.

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-free-hats-game-game-hack PDF link annotation
    • http://perpus.i2s-learning.com/repository/promo-code-free-roblox_GM431946152.pdfIn PDF document text
    • http://perpus.i2s-learning.com/repository/coin-master-free-card-link-today_GM406889139.pdfIn PDF document text
    • http://perpus.i2s-learning.com//repository/coin-master-2021-free-spins-link-2021_GM406889139.pdfIn PDF document text
    • http://perpus.i2s-learning.com//repository/roblox-hack-me-robux_GM431946152.pdfIn PDF document text
    • http://perpus.i2s-learning.com/repository/free-coin-master-spins_GM406889139.pdfIn PDF document text
    • http://perpus.i2s-learning.com/repository/free-robux-december-2021_GM431946152.pdfIn PDF document text
    • http://perpus.i2s-learning.com/repository/free-robux-giveaway-live_GM431946152.pdfIn PDF document text
    • http://perpus.i2s-learning.com/repository/how-to-get-free-roblox-money_GM431946152.pdfIn PDF document text
    • http://perpus.i2s-learning.com/repository/free-robux-2021_GM431946152.pdfIn PDF document text
    • http://perpus.i2s-learning.com//repository/coin-master-free-spins-app-for-iphone_GM406889139.pdfIn PDF document text
    • http://perpus.i2s-learning.com/repository/daily-free-spin-link-for-coin-master_GM406889139.pdfIn PDF document text
    • http://perpus.i2s-learning.com//repository/free-robux-com_GM431946152.pdfIn PDF document text
    • http://perpus.i2s-learning.com/repository/to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://perpus.i2s-learning.com//repository/daily-free-spins-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://perpus.i2s-learning.com/repository/blox-world-free-robux_GM431946152.pdfIn PDF document text
    • http://perpus.i2s-learning.com//repository/free-robux-microsoft_GM431946152.pdfIn PDF document text
    • http://perpus.i2s-learning.com/repository/how-to-get-free-robux-without-verifying-2021_GM431946152.pdfIn PDF document text
    • http://perpus.i2s-learning.com/repository/mcpe-master-hack-coins_GM406889139.pdfIn PDF document text
    • http://perpus.i2s-learning.com//repository/coin-master-free-spins-link-today-facebook_GM406889139.pdfIn PDF document text
    • http://perpus.i2s-learning.com//repository/village-4-coin-master_GM406889139.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_off00003138.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3138 22008 bytes
SHA-256: d584ff9916df315dc4e9d43de678e885080f47e3eb90dbfe9b70b1e7c962bfb9
font_01_sfnt_off0000621f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x621F 19016 bytes
SHA-256: 1a2252a8c8ce112c631f8a396cc88ebcfbb0ba219a5b0daded568403b7b3d347

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