Malicious PDF — malware analysis report

Static analysis result for SHA-256 cd5be46fe9db3e86…

MALICIOUS

PDF

42.0 KB Created: 2021-05-16 02:04:40 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 2a6a88147e37c2a6427a11d368dafc0e SHA-1: bb6f9d007b01db3aa7adbd49efff0720caa9b4e4 SHA-256: cd5be46fe9db3e863c8a4b5b5ca22e8b1d33fdf4770f34e81f2c5af24729a5be
102 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains numerous external links, many of which are SEO-optimized and point to resources related to free Robux and Coin Master cheats. The ML classifier strongly flagged this PDF as malicious, and the presence of external URIs and a link farm heuristic indicates a high likelihood of this document being used to redirect users to malicious sites or download unwanted software. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

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 https://netcdn.xyz/app/431946152/free-robux-app-game-hack
    • https://learning.mansatupadangpanjang.sch.id/__statics/gudangsoal/files/www-roblox-com-robux_GM431946152.pdf
    • https://learning.mansatupadangpanjang.sch.id/__statics/gudangsoal/files/www-claim-gg-to-earn-free-robux_GM431946152.pdf
    • https://learning.mansatupadangpanjang.sch.id/__statics/gudangsoal/files/what-is-robux-in-roblox_GM431946152.pdf
    • https://learning.mansatupadangpanjang.sch.id/__statics/gudangsoal/files/hack-version-of-coin-master_GM406889139.pdf
    • https://learning.mansatupadangpanjang.sch.id/__statics/gudangsoal/files/get-free-lives-on-coin-master_GM406889139.pdf
    • https://learning.mansatupadangpanjang.sch.id/__statics/gudangsoal/files/free-roblox-outfits_GM431946152.pdf
    • https://learning.mansatupadangpanjang.sch.id/__statics/gudangsoal/files/free-spins-and-coins-on-coin-master_GM406889139.pdf
    • https://learning.mansatupadangpanjang.sch.id/__statics/gudangsoal/files/free-premium-roblox_GM431946152.pdf
    • https://learning.mansatupadangpanjang.sch.id/__statics/gudangsoal/files/hack-game-plus-com-coin-master_GM406889139.pdf
    • https://learning.mansatupadangpanjang.sch.id/__statics/gudangsoal/files/coin-master-cards_GM406889139.pdf
    • https://learning.mansatupadangpanjang.sch.id/__statics/gudangsoal/files/free-spins-coin-master-october-13-2021_GM406889139.pdf
    • https://learning.mansatupadangpanjang.sch.id/__statics/gudangsoal/files/coin-master-hack-without-verification-code_GM406889139.pdf
    • https://learning.mansatupadangpanjang.sch.id/__statics/gudangsoal/files/blogspot-free-spins-coin-master_GM406889139.pdf
    • https://learning.mansatupadangpanjang.sch.id/__statics/gudangsoal/files/how-many-free-spin-links-is-there-for-coin-master_GM406889139.pdf
    • https://learning.mansatupadangpanjang.sch.id/__statics/gudangsoal/files/free-stuff-on-roblox_GM431946152.pdf
    • https://learning.mansatupadangpanjang.sch.id/__statics/gudangsoal/files/roblox-generator-no-human-verification_GM431946152.pdf
    • https://learning.mansatupadangpanjang.sch.id/__statics/gudangsoal/files/coin-master-free-spins-link_GM406889139.pdf
    • https://learning.mansatupadangpanjang.sch.id/__statics/gudangsoal/files/coin-master-hacked-apk-download-for-android_GM406889139.pdf
    • https://learning.mansatupadangpanjang.sch.id/__statics/gudangsoal/files/make-free-robux_GM431946152.pdf
    • https://learning.mansatupadangpanjang.sch.id/__statics/gudangsoal/files/coin-master-spin-blogspot_GM406889139.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004be9.bin
251cd924c5943942ad765450785598611f5c9aac14a8f5782938c57292b8d652		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4BE9 24008 bytes
font_01_sfnt_off00008230.bin
b6ab7ec8c8ad827553cf0587115e299062cd48018093aec7e14a56fabc9ede42		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8230 18192 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.