Malicious PDF — malware analysis report

Static analysis result for SHA-256 e90145b8763dee4d…

MALICIOUS

PDF

33.8 KB Created: 2021-07-09 12:28:51 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-07
MD5: c3352178e531a0e5f20cf519c5f71a44 SHA-1: 6ee3a0fbc7c530397eca07c123acb3e70cc019d2 SHA-256: e90145b8763dee4d6fbc8dfbfaf95fc046340e729dc923d0283918af7577cd57
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a prominent link disguised as a 'free generator / game hack' lure, directing users to a malicious URL. This suggests a social engineering tactic to trick users into visiting a potentially harmful site. While no scripts were directly extracted, the presence of embedded URLs and the nature of the lure indicate a phishing or scam attempt, likely leading to further malware download or credential harvesting.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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/406889139/link-for-free-spins-on-coin-master-game-hack PDF link annotation
    • https://www.zagi.hr/files/roblox-script-hack_GM431946152.pdfIn PDF document text
    • http://zagi.hr/files/coin-master-hack-without-verification-code_GM406889139.pdfIn PDF document text
    • http://zagi.hr/files/how-to-hack-roblox-to-get-robux_GM431946152.pdfIn PDF document text
    • http://zagi.hr/files/free-spins-coin-master-links-blogger_GM406889139.pdfIn PDF document text
    • http://zagi.hr/files/roblox-promo-code-to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://www.zagi.hr/files/coin-master-claim-free-spins_GM406889139.pdfIn PDF document text
    • https://www.zagi.hr/files/password-free-roblox-accounts_GM431946152.pdfIn PDF document text
    • https://www.zagi.hr/files/how-do-you-get-free-coins-in-coin-master_GM406889139.pdfIn PDF document text
    • https://www.zagi.hr/files/games-that-give-free-robux_GM431946152.pdfIn PDF document text
    • http://zagi.hr/files/minecraft-windows-10-code-free_GM479516143.pdfIn PDF document text
    • http://zagi.hr/files/coin-master-hack-ios-2021_GM406889139.pdfIn PDF document text
    • http://zagi.hr/files/como-ganar-robux-en-roblox-sin-hacks_GM431946152.pdfIn PDF document text
    • https://www.zagi.hr/files/roblox36com-free-robux_GM431946152.pdfIn PDF document text
    • https://www.zagi.hr/files/roblox-drivers-upgrade-free_GM431946152.pdfIn PDF document text
    • http://zagi.hr/files/how-to-install-minecraft-for-free-on-ios_GM479516143.pdfIn PDF document text
    • https://www.zagi.hr/files/free-robux-hack-no-confusion_GM431946152.pdfIn PDF document text
    • https://www.zagi.hr/files/minecraft-maps-pe-free-download_GM479516143.pdfIn PDF document text
    • http://zagi.hr/files/free-coin-master-glitches_GM406889139.pdfIn PDF document text
    • https://www.zagi.hr/files/robux-come_GM431946152.pdfIn PDF document text
    • http://zagi.hr/files/robux-hack-no-app-install_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_off00002d8f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2D8F 23024 bytes
SHA-256: c6ec4e8057cc56a55cff8dcdc6aee888d085a085a5b4ebcdad1ac54be5792a56
font_01_sfnt_off0000612e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x612E 18344 bytes
SHA-256: f56b0ea85f0f4ceaa4b3226630b5e27c33b435ed9466ab3582cda34df5208c0a

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