Malicious PDF — malware analysis report

Static analysis result for SHA-256 fb1d8e61f67ebceb…

MALICIOUS

PDF

38.0 KB Created: 2021-05-24 06:41:05 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-17
MD5: 44747083cc85d85868dd3abe0581a635 SHA-1: 94c06f93606d15b4d0a6bc6ace1df7856ca89f6e SHA-256: fb1d8e61f67ebceb59c8dffafd6b2bc4c2086efaab0627baa34021cce4ece23e
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a lure for a "free generator / game hack" which links to a suspicious URL. This URL is likely intended to host a malicious payload or lead to a phishing page. The presence of multiple related URLs and the ML classifier's flagging indicate a high likelihood of malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7010

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/835599320/free-views-on-tiktok-game-hack PDF link annotation
    • http://akvamaster.com.ua/images/how-to-free-robux_GM431946152.pdfIn PDF document text
    • http://akvamaster.com.ua/images/free-robux-generator-no-human-verification-2021_GM431946152.pdfIn PDF document text
    • http://akvamaster.com.ua/images/free-robux-no-human-verification-or-survey_GM431946152.pdfIn PDF document text
    • http://akvamaster.com.ua/images/coin-master-free-spin-now_GM406889139.pdfIn PDF document text
    • http://akvamaster.com.ua/images/best-free-minecraft-texture-packs_GM479516143.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_002_off000030f8.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x30F8 25380 bytes
SHA-256: fe7ce38e1fb8d5baa8dbfb66578a277cf443df08cd38d9c1bfe656714a928a94
font_01_sfnt_off00006a42.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6A42 2940 bytes
SHA-256: eb230542719c96b42e3fd8bb01e35f13ebd5f02629049da3a58e7fd7607bf48a
font_02_sfnt_off00007452.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7452 17752 bytes
SHA-256: 0bba4198fd0ca9d20010dde6368f831223727c1fd110b32f8bd9ae0070f69573

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