Malicious PDF — malware analysis report

Static analysis result for SHA-256 7698af39309b7a25…

MALICIOUS

PDF

36.4 KB Created: 2021-07-09 06:00:21 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 69f4db94a20bf2f1e53788448a833891 SHA-1: 192f67c7e8b5de8dde2650b209d135f75c1b0ab2 SHA-256: 7698af39309b7a25d02cda9be26c380478d2fe4f1472c0a8502229c6fbcca990
102 Risk Score

Malware Insights

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

The PDF document contains numerous embedded links, many of which point to external websites related to game hacks and generators. The heuristic 'PDF_SEO_LINK_FARM' indicates a large number of such links, suggesting a link farm or a distribution point for potentially malicious content. The ML classifier also strongly flagged this PDF as malicious. The primary attack pattern involves tricking users into clicking these links, which likely lead to malware downloads or scam pages.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 4

  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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/roblox-generator-com-game-hack
    • http://www.ankitabrushes.com/uploaded_files/userfiles/files/how-to-get-minecraft-for-free-on-android_GM479516143.pdf
    • http://www.ankitabrushes.com/uploaded_files/userfiles/files/coin-master-15-free-spin-link-today_GM406889139.pdf
    • http://www.ankitabrushes.com/uploaded_files/userfiles/files/how-to-hack-roblox-2021_GM431946152.pdf
    • http://www.ankitabrushes.com/uploaded_files/userfiles/files/how-to-get-free-robux-without-buying-them_GM431946152.pdf
    • http://www.ankitabrushes.com/uploaded_files/userfiles/files/how-to-get-free-robux-hack_GM431946152.pdf
    • http://www.ankitabrushes.com/uploaded_files/userfiles/files/how-to-get-free-catalog-items-on-roblox-working-2021_GM431946152.pdf
    • http://www.ankitabrushes.com/uploaded_files/userfiles/files/minecraft-thumbnail-maker-free_GM479516143.pdf
    • http://www.ankitabrushes.com/uploaded_files/userfiles/files/wwwcoin-master-hack-apk_GM406889139.pdf
    • http://www.ankitabrushes.com/uploaded_files/userfiles/files/how-to-get-free-robux-that-roblox-cant-patch-up_GM431946152.pdf
    • http://www.ankitabrushes.com/uploaded_files/userfiles/files/descargar-hack-de-roblox-deathrun_GM431946152.pdf
    • http://www.ankitabrushes.com/uploaded_files/userfiles/files/how-to-hack-the-chat-roblox_GM431946152.pdf
    • http://www.ankitabrushes.com/uploaded_files/userfiles/files/free-robux-no-verification-required_GM431946152.pdf
    • http://www.ankitabrushes.com/uploaded_files/userfiles/files/teleport-roblox-jilbreak-hack_GM431946152.pdf
    • http://www.ankitabrushes.com/uploaded_files/userfiles/files/hack-jailbreak-roblox-2021-cranberrye_GM431946152.pdf
    • http://www.ankitabrushes.com/uploaded_files/userfiles/files/robux-hack-on-ipad_GM431946152.pdf
    • http://www.ankitabrushes.com/uploaded_files/userfiles/files/free-spins-for-coin-master-without-human-verification_GM406889139.pdf
    • http://www.ankitabrushes.com/uploaded_files/userfiles/files/3-games-that-give-free-robux_GM431946152.pdf
    • http://www.ankitabrushes.com/uploaded_files/userfiles/files/roblox-dinosaur-simulator-hack-script_GM431946152.pdf
    • http://www.ankitabrushes.com/uploaded_files/userfiles/files/roblox-sharkbite-free-boats-script_GM431946152.pdf
    • http://www.ankitabrushes.com/uploaded_files/userfiles/files/hack-to-log-on-any-account-on-roblox_GM431946152.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000037e2.bin
2179c63f9fa38767621025379f385b30ab018b53fcb43e15736d7989384ef7e5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x37E2 22396 bytes
font_01_sfnt_off000069ce.bin
0a4af514c889a3451c1d9ad9c5647b2e50cd91b862ec9300b3ebbff7a9306fbb		 pdf-font-stream PDF embedded font (sfnt) at offset 0x69CE 18848 bytes

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