Malicious PDF — malware analysis report

Static analysis result for SHA-256 5e4a2e40cd86e1c8…

MALICIOUS

PDF

33.6 KB Created: 2021-06-28 01:54:48 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 7f920410438ab56e595eb3a0e9646c8a SHA-1: a560c0d85a2d75bd82164e55fc521d75a0068236 SHA-256: 5e4a2e40cd86e1c8cc338a62e8c259edf09a24eb9dff7347fcee1265e07caffa
102 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains numerous embedded URLs and a link farm, strongly suggesting it is designed to redirect users to malicious websites. The content, including the document body and extracted URLs, focuses on 'Roblox hacks' and 'free Robux', indicating a lure for potentially harmful downloads or scams. The ML classifier also flagged this PDF as malicious with high confidence.

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.co/app/431946152/greasyfork-roblox-hacks-game-hack
    • https://perpus.poltekkesjkt2.ac.id/setiadi/repository/roblox-robux-hack-tool-download_GM431946152.pdf
    • https://perpus.poltekkesjkt2.ac.id/setiadi/repository/roblox-jailbreak-hack-how-to-through-wals-hack_GM431946152.pdf
    • https://perpus.poltekkesjkt2.ac.id/respoy/repository/hack-prison-life-roblox-noviembre2021_GM431946152.pdf
    • https://perpus.poltekkesjkt2.ac.id/setiadi/repository/games-for-free-like-roblox_GM431946152.pdf
    • https://perpus.poltekkesjkt2.ac.id/setiadi/repository/roblox-how-to-get-free-clothes-2021_GM431946152.pdf
    • https://perpus.poltekkesjkt2.ac.id/respoy/repository/info-de-el-hacker-de-roblox_GM431946152.pdf
    • https://perpus.poltekkesjkt2.ac.id/respoy/repository/fast-hacks-robux_GM431946152.pdf
    • https://perpus.poltekkesjkt2.ac.id/respoy/repository/how-to-report-being-hacked-on-roblox_GM431946152.pdf
    • https://perpus.poltekkesjkt2.ac.id/setiadi/repository/free-robux-without-download-pc_GM431946152.pdf
    • https://perpus.poltekkesjkt2.ac.id/respoy/repository/how-to-hack-roblox-vehicle-simulator_GM431946152.pdf
    • https://perpus.poltekkesjkt2.ac.id/respoy/repository/robux-cheat-2021_GM431946152.pdf
    • https://perpus.poltekkesjkt2.ac.id/setiadi/repository/roblox-phantom-forces-hack-level_GM431946152.pdf
    • https://perpus.poltekkesjkt2.ac.id/respoy/repository/hack-roblox-with-this-edit-cookie_GM431946152.pdf
    • https://perpus.poltekkesjkt2.ac.id/setiadi/repository/is-roblox-free-to-play-on-pc_GM431946152.pdf
    • https://perpus.poltekkesjkt2.ac.id/respoy/repository/youtube-hack-roblox-accounts_GM431946152.pdf
    • https://perpus.poltekkesjkt2.ac.id/setiadi/repository/free-robux-real-no-hack_GM431946152.pdf
    • https://perpus.poltekkesjkt2.ac.id/setiadi/repository/free-gear-on-the-roblox-catalog_GM431946152.pdf
    • https://perpus.poltekkesjkt2.ac.id/respoy/repository/can-u-get-free-robux-in-roblox_GM431946152.pdf
    • https://perpus.poltekkesjkt2.ac.id/respoy/repository/get-infinite-money-roblox-online-money-hack-script_GM431946152.pdf
    • https://perpus.poltekkesjkt2.ac.id/respoy/repository/how-to-get-any-roblox-game-for-free_GM431946152.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002ed6.bin
5bb645d9307c87c8552087bad2de133dd6dbe27768cbefa7ee625eac94a2d2fa
pdf-font-stream PDF embedded font (sfnt) at offset 0x2ED6 21760 bytes
font_01_sfnt_off00005eab.bin
235d0bedbce61be044a17182f054c07313eefda2fe80978fbc399b954b0a6d0a
pdf-font-stream PDF embedded font (sfnt) at offset 0x5EAB 18836 bytes