Malicious PDF — malware analysis report

Static analysis result for SHA-256 697c2057ed82fbe3…

MALICIOUS

PDF

43.2 KB Created: 2021-05-12 20:32:24 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-05
MD5: c1558d4b35d6defb70e5d2e82db154c3 SHA-1: 74afe0a607933a6eb6ab2e86ba48284f96134911 SHA-256: 697c2057ed82fbe3303ad68fee8384d5f6dd690f69bf6cedfa43b4d5c3170d0a
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple embedded URLs, with a primary focus on 'free game hacks' and generators for popular games like Roblox and Coin Master. The heuristic 'PDF_GAME_HACK_REDIRECT_LURE' strongly indicates this malicious intent. The ML classifier also flagged the document with high confidence. While no scripts were explicitly extracted, the presence of numerous suspicious URLs suggests the document is designed to redirect users to malicious sites, likely for malware distribution or phishing.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9969

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-groups-game-hack PDF link annotation
    • http://leagueforwomenrights.gr/images/minecraft-pc-free_GM479516143.pdfIn PDF document text
    • http://leagueforwomenrights.gr/images/codes-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://leagueforwomenrights.gr/images/master-free-spin-and-coin-link_GM406889139.pdfIn PDF document text
    • http://leagueforwomenrights.gr/images/coin-master-coins-hack_GM406889139.pdfIn PDF document text
    • http://leagueforwomenrights.gr/images/www-rbx-com_GM431946152.pdfIn PDF document text
    • http://leagueforwomenrights.gr/images/coin-master-400-spin-link_GM406889139.pdfIn PDF document text
    • http://leagueforwomenrights.gr/images/coin-master-daily-gift-free-spins-and-coins-link_GM406889139.pdfIn PDF document text
    • http://leagueforwomenrights.gr/images/roblox-hack-generator_GM431946152.pdfIn PDF document text
    • http://leagueforwomenrights.gr/images/free-400-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://leagueforwomenrights.gr/images/wurst-18_GM479516143.pdfIn PDF document text
    • http://leagueforwomenrights.gr/images/free-spins-on-coin-master-link_GM406889139.pdfIn PDF document text
    • http://leagueforwomenrights.gr/images/how-to-hack-coin-master_GM406889139.pdfIn PDF document text
    • http://leagueforwomenrights.gr/images/coin-master-free-spins-link-today_GM406889139.pdfIn PDF document text
    • http://leagueforwomenrights.gr/images/free-robux-hack-no-human-verification-or-survey_GM431946152.pdfIn PDF document text
    • http://leagueforwomenrights.gr/images/free-roblox-hack-us_GM431946152.pdfIn PDF document text
    • http://leagueforwomenrights.gr/images/how-to-log-out-of-coin-master_GM406889139.pdfIn PDF document text
    • http://leagueforwomenrights.gr/images/how-do-you-get-roblox-for-free_GM431946152.pdfIn PDF document text
    • http://leagueforwomenrights.gr/images/krnl-roblox_GM431946152.pdfIn PDF document text
    • http://leagueforwomenrights.gr/images/how-to-get-free-robux-on-phone_GM431946152.pdfIn PDF document text
    • http://leagueforwomenrights.gr/images/how-to-get-minecraft-java-for-free_GM479516143.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
stream_003_off00004830.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4830 26432 bytes
SHA-256: 00a73b3a71e6ef9f253fd327c29c8ba7b62723f6ebe9e519c5b66831a576e438
font_01_sfnt_off000086a9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x86A9 18264 bytes
SHA-256: 59dbfb19f503ab5ccde5afb48b0ebb207c820587c290c946a9c33262b394e3ff

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