Malicious PDF — malware analysis report

Static analysis result for SHA-256 b254b0a69b109bdf…

MALICIOUS

PDF

46.7 KB Created: 2021-05-16 23:07:14 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-17
MD5: 336736b709f810c6d2d692b5a4800856 SHA-1: bab1b2c8546947e2bdc766142cb350f39707c83d SHA-256: b254b0a69b109bdf55833d65fa73088dd9f0e2c8dce9aee975b67608387f8d7b
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF document contains numerous links and text related to 'free game hacks' and 'robux', indicating a lure for users interested in obtaining in-game advantages. The heuristic firings confirm that the PDF links to external URIs and specifically targets users with game hack lures. While no scripts were extracted, the embedded URLs are the primary indicators of malicious intent, likely leading to phishing sites or malware downloads.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9977

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 https://netcdn.xyz/app/431946152/free-roblox-accounts-with-robux-that-work-not-banned-2021-game-hack PDF link annotation
    • https://jdlgroup.ca/images/fb-coin-master_GM406889139.pdfIn PDF document text
    • https://jdlgroup.ca/images/rbxoffers-com-free-robux_GM431946152.pdfIn PDF document text
    • https://jdlgroup.ca/images/coin-master-hack-game-download_GM406889139.pdfIn PDF document text
    • https://jdlgroup.ca/images/how-do-you-get-free-roblox_GM431946152.pdfIn PDF document text
    • https://jdlgroup.ca/images/how-to-get-free-robux-without-surveys_GM431946152.pdfIn PDF document text
    • https://jdlgroup.ca/images/how-to-hack-roblox-accounts-2021_GM431946152.pdfIn PDF document text
    • https://jdlgroup.ca/images/coin-master-game-free-download-for-pc_GM406889139.pdfIn PDF document text
    • https://jdlgroup.ca/images/cute-free-stuff-on-roblox_GM431946152.pdfIn PDF document text
    • https://jdlgroup.ca/images/apps-for-free-robux_GM431946152.pdfIn PDF document text
    • https://jdlgroup.ca/images/haktutsin-2021-09-coinmaster50freespinandcoinlinkhtml-m-1_GM406889139.pdfIn PDF document text
    • https://jdlgroup.ca/images/coin-master-free-spins-and-coins-app-download_GM406889139.pdfIn PDF document text
    • https://jdlgroup.ca/images/coin-master-hack-app-android-download_GM406889139.pdfIn PDF document text
    • https://jdlgroup.ca/images/how-to-get-minecraft-for-free-on-xbox_GM479516143.pdfIn PDF document text
    • https://jdlgroup.ca/images/minecraft-mobile-free_GM479516143.pdfIn PDF document text
    • https://jdlgroup.ca/images/robux-download_GM431946152.pdfIn PDF document text
    • https://jdlgroup.ca/images/free-robux-generator-2021_GM431946152.pdfIn PDF document text
    • https://jdlgroup.ca/images/coin-master-hack-without-verification-code_GM406889139.pdfIn PDF document text
    • https://jdlgroup.ca/images/free-robux-today_GM431946152.pdfIn PDF document text
    • https://jdlgroup.ca/images/roblox-arsenal-hacks-download_GM431946152.pdfIn PDF document text
    • https://jdlgroup.ca/images/roblox-online-free_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_off00004aa1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4AA1 31548 bytes
SHA-256: e84b06b3d82dd62d1302e7dda21e34a77a416ef5dac6a324aff65fd74f52a432
font_01_sfnt_off0000904c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x904C 19652 bytes
SHA-256: 72c791ad1c4340ed85ac0ecdba514e35635851f3f818d4a167a4eafc97bf1d2a