Malicious PDF — malware analysis report

Static analysis result for SHA-256 d3130aaf21867efb…

MALICIOUS

PDF

35.4 KB Created: 2021-07-08 22:00:21 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 6a11c661fa4752e3f3ca90de5d13b597 SHA-1: 5dcdb324dc99197b0c2a9a5a192f416ea6ff7198 SHA-256: d3130aaf21867efbbc60184390d16952c7949cda2d82b407c3e824a4309d6167
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

This PDF document contains multiple links, including one to 'netcdn.tw', which is flagged as a game hack lure. The ML classifier also strongly indicated maliciousness. The document's purpose appears to be tricking users into downloading potentially malicious files by offering game cheats or generators.

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/479516143/minecraft-mod-menu-apk-game-hack PDF link annotation
    • https://www.bodyammo.in/uploaded_files/userfiles/files/bloxburg-hack-roblox-pastebin_GM431946152.pdfIn PDF document text
    • https://www.bodyammo.in/uploaded_files/userfiles/files/roblox-obux-hack-client_GM431946152.pdfIn PDF document text
    • https://www.bodyammo.in/uploaded_files/userfiles/files/free-money-roblox-jailbreak-hack_GM431946152.pdfIn PDF document text
    • https://www.bodyammo.in/uploaded_files/userfiles/files/roblox-one-piece-millenium-hack-script_GM431946152.pdfIn PDF document text
    • https://www.bodyammo.in/uploaded_files/userfiles/files/minecraft-free-download-ipad_GM479516143.pdfIn PDF document text
    • https://www.bodyammo.in/uploaded_files/userfiles/files/free-roblox-account-generator-2021_GM431946152.pdfIn PDF document text
    • https://www.bodyammo.in/uploaded_files/userfiles/files/hack-coin-master-online_GM406889139.pdfIn PDF document text
    • https://www.bodyammo.in/uploaded_files/userfiles/files/roblox-free-robux-generator-no-human-verification-2021_GM431946152.pdfIn PDF document text
    • https://www.bodyammo.in/uploaded_files/userfiles/files/click-this-100-times-to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://www.bodyammo.in/uploaded_files/userfiles/files/coin-master-rewards-app_GM406889139.pdfIn PDF document text
    • https://www.bodyammo.in/uploaded_files/userfiles/files/how-do-you-hack-minecraft_GM479516143.pdfIn PDF document text
    • https://www.bodyammo.in/uploaded_files/userfiles/files/how-to-hack-robux-with-cheat-engine-63_GM431946152.pdfIn PDF document text
    • https://www.bodyammo.in/uploaded_files/userfiles/files/chrome-web-store-roblox-hacks_GM431946152.pdfIn PDF document text
    • https://www.bodyammo.in/uploaded_files/userfiles/files/dashing-simulator-roblox-hack_GM431946152.pdfIn PDF document text
    • https://www.bodyammo.in/uploaded_files/userfiles/files/free-codes-for-the-floor-is-lava-roblox_GM431946152.pdfIn PDF document text
    • https://www.bodyammo.in/uploaded_files/userfiles/files/how-to-get-free-robux-without-verification_GM431946152.pdfIn PDF document text
    • https://www.bodyammo.in/uploaded_files/userfiles/files/free-roblox-battle-royale_GM431946152.pdfIn PDF document text
    • https://www.bodyammo.in/uploaded_files/userfiles/files/robux-hack-dot-net_GM431946152.pdfIn PDF document text
    • https://www.bodyammo.in/uploaded_files/userfiles/files/roblox-dbz-final-stand-cheats_GM431946152.pdfIn PDF document text
    • https://www.bodyammo.in/uploaded_files/userfiles/files/apocalypse-rising-roblox-map-free-download_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_off000034ed.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x34ED 22464 bytes
SHA-256: 1504f49e12dfa9c8504338ee2859efd70cf3cb656fe7e374781676203d6ead97
font_01_sfnt_off000066d6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x66D6 18656 bytes
SHA-256: e60ea809a78d5bbfe0364c8a7d38a83a32a54aa0c9ecd2c0a663b1206ec675aa