Malicious PDF — malware analysis report

Static analysis result for SHA-256 30624b33cce05345…

MALICIOUS

PDF

34.0 KB Created: 2021-07-05 21:11:39 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 986ff2950c4d5e6cd4faf2981b163661 SHA-1: 7f6d952482e5d9a8ecdf6d2a58fe0037953c1213 SHA-256: 30624b33cce053452c9dfb3adc72f49192df713c3046b3a435302f06d2fe237e
102 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a large number of external links, many of which are related to game hacking and exploits. The ML classifier strongly indicates maliciousness. The presence of embedded URLs and a 'download button' lure suggests the primary goal is to redirect users to malicious sites that likely host malware or phishing content.

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/406889139/spin-link-game-hack
    • http://digilib.ulm.ac.id/pusat/repository/free-roblox-generator_GM431946152.pdf
    • http://digilib.ulm.ac.id/pusat/repository/how-to-hack-your-account-on-roblox_GM431946152.pdf
    • http://digilib.ulm.ac.id/pusat/repository/how-to-hack-roblox-passwords-2021_GM431946152.pdf
    • http://digilib.ulm.ac.id/pusat/repository/how-to-get-free-robux-on-roblox-mobile_GM431946152.pdf
    • http://digilib.ulm.ac.id/pusat/repository/como-hackear-robux-en-roblox-con-cheat-engine-66_GM431946152.pdf
    • http://digilib.ulm.ac.id/pusat/repository/roblox-cheats-without-builders-club_GM431946152.pdf
    • http://digilib.ulm.ac.id/pusat/repository/robux-hack-me_GM431946152.pdf
    • http://digilib.ulm.ac.id/pusat/repository/free-robux-for-roblox-cheats-and-guide-download_GM431946152.pdf
    • http://digilib.ulm.ac.id/pusat/repository/roblox-wifi-hack_GM431946152.pdf
    • http://digilib.ulm.ac.id/pusat/repository/how-do-i-get-free-robux_GM431946152.pdf
    • http://digilib.ulm.ac.id/pusat/repository/free-accounts-with-bigger-head-roblox_GM431946152.pdf
    • http://digilib.ulm.ac.id/pusat/repository/roblox-galaxy-cheats_GM431946152.pdf
    • http://digilib.ulm.ac.id/pusat/repository/roblox-hack-cheat-engine-65_GM431946152.pdf
    • http://digilib.ulm.ac.id/pusat/repository/cool-free-green-shirts-roblox_GM431946152.pdf
    • http://digilib.ulm.ac.id/pusat/repository/my-roblox-account-was-hacked_GM431946152.pdf
    • http://digilib.ulm.ac.id/pusat/repository/cheat-codes-for-roblox-retail-tycoon_GM431946152.pdf
    • http://digilib.ulm.ac.id/pusat/repository/minecraft-116-apk-download_GM479516143.pdf
    • http://digilib.ulm.ac.id/pusat/repository/free-robux-accounts_GM431946152.pdf
    • http://digilib.ulm.ac.id/pusat/repository/free-spin-and-win-coin-master_GM406889139.pdf
    • http://digilib.ulm.ac.id/pusat/repository/coin-master-hack-app-download-free_GM406889139.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003093.bin
b23de62664f8c186933c12f5011637a1f266a33621bfc335a9b39ca09120f1d7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x3093 22620 bytes
font_01_sfnt_off00006343.bin
291a6753fc2367f8404d431bd18a2520f3a8298b5d66733df321c0bb6f83edb8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6343 17936 bytes

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