Malicious PDF — malware analysis report

Static analysis result for SHA-256 7b5d6958c9ccd683…

MALICIOUS

PDF

43.4 KB Created: 2021-05-22 10:41:00 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: bb83ff8bb5b828b409d1106ded4e071b SHA-1: 181e6b775e5148699553ec5d98b606fb5bce04c8 SHA-256: 7b5d6958c9ccd6839b97d08f5d378529f93cec51cd2f7d8e3c87886e63b45dd2
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a lure related to hacking game accounts, directing users to a malicious URL. The document body explicitly mentions 'How To Hack Roblox Accounts 2021 Easy' and includes a call to action to 'CLICK HERE TO ACCESS ROBLOX GENERATOR', which links to a suspicious domain. This suggests an attempt to lure users to a potentially malicious site for credential harvesting or further malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7947

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/how-to-hack-roblox-accounts-2021-easy-game-hack PDF link annotation
    • http://urezerv.com/images/minecraft-menu_GM479516143.pdfIn PDF document text
    • http://urezerv.com/images/free-robux-come_GM431946152.pdfIn PDF document text
    • http://urezerv.com/images/how-to-get-free-robux-2021-easy_GM431946152.pdfIn PDF document text
    • http://urezerv.com/images/coin-master-pc-game-free-download_GM406889139.pdfIn PDF document text
    • http://urezerv.com/images/free-t-shirt-roblox_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_002_off000032eb.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x32EB 26056 bytes
SHA-256: ed1add06575f3bb876dba02e83dac6447d5e96cba83a22c53bd99e7d7ee70ed6
font_01_sfnt_off00006e45.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6E45 2844 bytes
SHA-256: a66b570a908761b39e6d9e18bcb667c353840a86c6a7db528f79d01abe6b23a1
font_02_sfnt_off000077e7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x77E7 5696 bytes
SHA-256: 450e3ee45915afe13702bf1d587eb8b9ad88a8d2113419ac9f2fd116a828e139
font_03_sfnt_off000084f9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x84F9 19172 bytes
SHA-256: 0a4c192dd0d49b475d670e2028b2e3d9bc88486e58824ff416e2d46c0acce708

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