Malicious PDF — malware analysis report

Static analysis result for SHA-256 8070d2b8b35b8547…

MALICIOUS

PDF

34.3 KB Created: 2021-07-19 17:10:32 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-05
MD5: d3e3216644a09360250e6a7a6cc51dd8 SHA-1: 3d198880843b8180fb0995a3be2bfad9c1f297d7 SHA-256: 8070d2b8b35b85473f81d5accfc494d6901a68f5db957fde7b41ceb046cf5de8
82 Risk Score

Malware Insights

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

The PDF document contains a lure for 'free game hacks' and directs users to a suspicious URL. The ML classifier also flagged this PDF as malicious. The primary attack pattern involves tricking the user into visiting a malicious link, likely to facilitate a scam or download further malware.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9955

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-roblox-accounts-with-robux-that-work-2021-game-hack PDF link annotation
    • https://laokhwanhos.com/ckfinder/userfiles/files/free-minecraft-resource-packs_GM479516143.pdfIn PDF document text
    • https://laokhwanhos.com/ckfinder/userfiles/files/free-minecraft-alt-generator_GM479516143.pdfIn PDF document text
    • https://laokhwanhos.com/ckfinder/userfiles/files/free-spins-coin-master-app_GM406889139.pdfIn PDF document text
    • https://laokhwanhos.com/ckfinder/userfiles/files/how-to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://laokhwanhos.com/ckfinder/userfiles/files/roblox-help-free-robux_GM431946152.pdfIn PDF document text
    • https://laokhwanhos.com/ckfinder/userfiles/files/coin-master-daily-free-spins-and-coins_GM406889139.pdfIn PDF document text
    • https://laokhwanhos.com/ckfinder/userfiles/files/how-can-i-get-free-robux_GM431946152.pdfIn PDF document text
    • https://laokhwanhos.com/ckfinder/userfiles/files/how-to-get-free-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • https://laokhwanhos.com/ckfinder/userfiles/files/how-to-get-free-robux-easy_GM431946152.pdfIn PDF document text
    • https://laokhwanhos.com/ckfinder/userfiles/files/free-tiktok-likes-no-survey_GM835599320.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_off00002d2b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2D2B 22804 bytes
SHA-256: 5a411e6671a12582c19762edcb1ac83a5f4eda7898d0967b0e84bf5e6f12b85f
font_01_sfnt_off00006037.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6037 19664 bytes
SHA-256: 8bae07e728b427e96174baf89e971ad8e2c74617409806078ebf0a16f21879c4

Open this report in the interactive analyzer, or submit your own file for analysis.