Malicious PDF — malware analysis report

Static analysis result for SHA-256 ca6e8a8e89165e0d…

MALICIOUS

PDF

34.9 KB Created: 2021-07-05 14:40:02 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-17
MD5: 60a85a3f14f222ef5298b9937b6a1a24 SHA-1: 360f7488a5165e7a25173f3f5034239e98670cdd SHA-256: ca6e8a8e89165e0d8e8c94c56e80a98c8e08bb689a24069513d0aa730929d9d9
102 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF document contains numerous links to external websites, many of which are structured as SEO link farms for game hacks and cheats. The ML classifier strongly indicates maliciousness, and the presence of external URIs suggests the document is designed to redirect users to potentially harmful content. The document body explicitly mentions 'Robux Hack No Verification' and includes URLs pointing to game-related exploits, reinforcing the lure tactic.

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/robux-hack-no-verification-game-hack PDF link annotation
    • http://perpustakaan-stikesmsb.com/repository/comment-crer-son-propre-hack-roblox_GM431946152.pdfIn PDF document text
    • http://perpustakaan-stikesmsb.com/repository/free-headless-head-roblox_GM431946152.pdfIn PDF document text
    • http://perpustakaan-stikesmsb.com/repository/roblox-god-mode-hack-2021_GM431946152.pdfIn PDF document text
    • http://perpustakaan-stikesmsb.com/repository/coin-master-free-spins-and-coins-link-haktuts_GM406889139.pdfIn PDF document text
    • http://perpustakaan-stikesmsb.com/repository/coin-master-hack-without-verification-2021_GM406889139.pdfIn PDF document text
    • http://perpustakaan-stikesmsb.com/repository/roblox-fly-hack-download_GM431946152.pdfIn PDF document text
    • http://perpustakaan-stikesmsb.com/repository/how-to-hack-murder-mystery-roblox_GM431946152.pdfIn PDF document text
    • http://perpustakaan-stikesmsb.com/repository/minecraft-free-play-no-download_GM479516143.pdfIn PDF document text
    • http://perpustakaan-stikesmsb.com/repository/how-to-free-robux_GM431946152.pdfIn PDF document text
    • http://perpustakaan-stikesmsb.com/repository/free-robux-discord-servers_GM431946152.pdfIn PDF document text
    • http://perpustakaan-stikesmsb.com/repository/get-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://perpustakaan-stikesmsb.com/repository/coin-master-free-spin-and-coin-link-today_GM406889139.pdfIn PDF document text
    • http://perpustakaan-stikesmsb.com/repository/free-robux-boost-com_GM431946152.pdfIn PDF document text
    • http://perpustakaan-stikesmsb.com/repository/free-robux-websites-that-actually-work_GM431946152.pdfIn PDF document text
    • http://perpustakaan-stikesmsb.com/repository/free-roblox-game-card-codes-25_GM431946152.pdfIn PDF document text
    • http://perpustakaan-stikesmsb.com/repository/coin-master-hack-mod-apk-unlimited-spins_GM406889139.pdfIn PDF document text
    • http://perpustakaan-stikesmsb.com/repository/how-to-be-moderator-in-free-paint-roblox_GM431946152.pdfIn PDF document text
    • http://perpustakaan-stikesmsb.com/repository/hack-2021-accounts-roblox_GM431946152.pdfIn PDF document text
    • http://perpustakaan-stikesmsb.com/repository/roblox-toys-redeem-codes-free_GM431946152.pdfIn PDF document text
    • http://perpustakaan-stikesmsb.com/repository/coin-master-daily-free-spins-2021_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_off000031fb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x31FB 22168 bytes
SHA-256: 8d7d98441c395c4731d8923cfab91fcc917d5ce67242fc67bb015c4ba3b01284
font_01_sfnt_off00006309.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6309 19080 bytes
SHA-256: d232f6da93b975725b0e6de4d1ead99b7c862a359b76aa44f8f2076ca8d9907b

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