Malicious PDF — malware analysis report

Static analysis result for SHA-256 61ca30908839d64c…

MALICIOUS

PDF

33.2 KB Created: 2021-07-08 17:10:58 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 9630c1fe38c02074a9e9d03bdb3d5083 SHA-1: dc8c6534372f8c0f4a3d74a657c3e01dfa195acc SHA-256: 61ca30908839d64c471f484fcd96b49a1afc0176ce2db42e9e22aa99ad37a008
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document employs a lure related to free game hacks for popular titles like Roblox and Minecraft to entice users. It contains an embedded URL that redirects to a malicious site, likely to download further malware or conduct phishing. The ML classifier strongly indicated maliciousness, and the PDF's structure and content align with common social engineering tactics used to trick users into visiting harmful sites.

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/431946152/how-to-get-free-roblox-game-hack PDF link annotation
    • https://morishita-tc.com.tw/image/data/files/how-to-change-roblox-username-for-free_GM431946152.pdfIn PDF document text
    • https://morishita-tc.com.tw/image/data/files/hacks-for-minecraft-bedrock_GM479516143.pdfIn PDF document text
    • https://morishita-tc.com.tw/image/data/files/free-muscle-t-shirt-roblox_GM431946152.pdfIn PDF document text
    • https://morishita-tc.com.tw/image/data/files/roblox-cheat-engine-64-robux-hack-2021_GM431946152.pdfIn PDF document text
    • https://morishita-tc.com.tw/image/data/files/coin-master-hacks-for-cards_GM406889139.pdfIn PDF document text
    • https://morishita-tc.com.tw/image/data/files/roblox36com-free-robux_GM431946152.pdfIn PDF document text
    • https://morishita-tc.com.tw/image/data/files/coin-master-hack-https-coinms-net_GM406889139.pdfIn PDF document text
    • https://morishita-tc.com.tw/image/data/files/how-to-hack-someones-profile-on-roblox_GM431946152.pdfIn PDF document text
    • https://morishita-tc.com.tw/image/data/files/roblox-robux-hack_GM431946152.pdfIn PDF document text
    • https://morishita-tc.com.tw/image/data/files/coin-master-hack-app-android_GM406889139.pdfIn PDF document text
    • https://morishita-tc.com.tw/image/data/files/minecraft-pvp-hacks_GM479516143.pdfIn PDF document text
    • https://morishita-tc.com.tw/image/data/files/roblox-games-to-play-for-free_GM431946152.pdfIn PDF document text
    • https://morishita-tc.com.tw/image/data/files/roblox-executor-download-free_GM431946152.pdfIn PDF document text
    • https://morishita-tc.com.tw/image/data/files/roblox-hacks-robuxian-secret-forum-hack-v11_GM431946152.pdfIn PDF document text
    • https://morishita-tc.com.tw/image/data/files/coin-master-hack-2021-free_GM406889139.pdfIn PDF document text
    • https://morishita-tc.com.tw/image/data/files/how-do-u-get-free-robux_GM431946152.pdfIn PDF document text
    • https://morishita-tc.com.tw/image/data/files/how-to-get-hacks-on-minecraft_GM479516143.pdfIn PDF document text
    • https://morishita-tc.com.tw/image/data/files/free-coin-master-app_GM406889139.pdfIn PDF document text
    • https://morishita-tc.com.tw/image/data/files/minecraft-clipart-free_GM479516143.pdfIn PDF document text
    • https://morishita-tc.com.tw/image/data/files/coin-master-coins-hack_GM406889139.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_off00002c65.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2C65 21892 bytes
SHA-256: 0edd7d6c51f8b5048e18ab06989c52e280f7ad32607623630204ea5a9eda6d77
font_01_sfnt_off00005cbc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5CBC 18920 bytes
SHA-256: 0cab8882f4c0675f5f492e8a84821542f7287f297f1ea8a50a76f0af58ce7d74

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