Malicious PDF — malware analysis report

Static analysis result for SHA-256 ea49e4cfa6fb3246…

MALICIOUS

PDF

46.0 KB Created: 2021-06-01 18:49:36 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 9d18a0d66477a44143a2460b45da15e8 SHA-1: 910fe1d2f68eeabc03e9184a67dc307dc35b8324 SHA-256: ea49e4cfa6fb3246fa622ec41ad229b440e349b9cdee4349b95840467d44ca7c
142 Risk Score

Malware Insights

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

The PDF contains multiple links to websites offering game hacks and free in-game currency, a common lure for phishing or malware distribution. The heuristic firings indicate the document displays a fake CAPTCHA or human verification prompt to trick users into interacting with malicious links. The primary URL identified is https://netcdn.xyz/app/431946152/roblox-free-robux-codes-wiki-game-hack.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9864

Heuristics 6

  • 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.
  • Fake CAPTCHA / human verification prompt high SE_FAKE_CAPTCHA
    Document displays a fake CAPTCHA or human-verification prompt — used to trick users into running commands or pressing keyboard shortcuts
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) documents that carry no urgency or charge/dispute escalation.
  • 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 https://netcdn.xyz/app/431946152/roblox-free-robux-codes-wiki-game-hack PDF link annotation
    • https://reportsurvey.co.kr/wp-content/uploads/fsqm-files/coin-master-free-blogspot_GM406889139.pdfIn PDF document text
    • https://reportsurvey.co.kr/wp-content/uploads/fsqm-files/roblox-how-to-hack-into-gallant-gaming-account_GM431946152.pdfIn PDF document text
    • https://reportsurvey.co.kr/wp-content/uploads/fsqm-files/password-generator-roblox-hack_GM431946152.pdfIn PDF document text
    • https://reportsurvey.co.kr/wp-content/uploads/fsqm-files/best-roblox-anti-cheat_GM431946152.pdfIn PDF document text
    • https://reportsurvey.co.kr/wp-content/uploads/fsqm-files/how-to-get-free-robux-2021-easy_GM431946152.pdfIn PDF document text
    • https://reportsurvey.co.kr/wp-content/uploads/fsqm-files/robux-hack-2021_GM431946152.pdfIn PDF document text
    • https://reportsurvey.co.kr/wp-content/uploads/fsqm-files/how-to-make-your-t-shirt-free-on-roblox_GM431946152.pdfIn PDF document text
    • https://reportsurvey.co.kr/wp-content/uploads/fsqm-files/roblox-changename-hack_GM431946152.pdfIn PDF document text
    • https://reportsurvey.co.kr/wp-content/uploads/fsqm-files/how-to-hack-roblox-accounts-on-phone_GM431946152.pdfIn PDF document text
    • https://reportsurvey.co.kr/wp-content/uploads/fsqm-files/free-robux-app-hacks_GM431946152.pdfIn PDF document text
    • https://reportsurvey.co.kr/wp-content/uploads/fsqm-files/how-to-get-minecraft-for-free-on-android_GM479516143.pdfIn PDF document text
    • https://reportsurvey.co.kr/wp-content/uploads/fsqm-files/hacks-on-roblox-app_GM431946152.pdfIn PDF document text
    • https://reportsurvey.co.kr/wp-content/uploads/fsqm-files/all-free-stuff-in-roblox-catalog_GM431946152.pdfIn PDF document text
    • https://reportsurvey.co.kr/wp-content/uploads/fsqm-files/free-roblox-generator-2021_GM431946152.pdfIn PDF document text
    • https://reportsurvey.co.kr/wp-content/uploads/fsqm-files/roblox-hack-2021_GM431946152.pdfIn PDF document text
    • https://reportsurvey.co.kr/wp-content/uploads/fsqm-files/descargar-hack-roblox-sin-virus_GM431946152.pdfIn PDF document text
    • https://reportsurvey.co.kr/wp-content/uploads/fsqm-files/how-to-get-minecraft-bedrock-edition-for-free_GM479516143.pdfIn PDF document text
    • https://reportsurvey.co.kr/wp-content/uploads/fsqm-files/free-robux-pastebin-no-wait-2021_GM431946152.pdfIn PDF document text
    • https://reportsurvey.co.kr/wp-content/uploads/fsqm-files/robux-com-free-robux_GM431946152.pdfIn PDF document text
    • https://reportsurvey.co.kr/wp-content/uploads/fsqm-files/descargar-hack-de-robux_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_off000054ae.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x54AE 25460 bytes
SHA-256: 139989ef5fbac99b9f1932761511690579a13243364d04555d8a86ceab8ada4f
font_01_sfnt_off00008ff0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8FF0 18752 bytes
SHA-256: 0d1659ea438d706f72e46da5afb3b28609279d9895e3a7caa687328ad3cd1f5f

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