Malicious PDF — malware analysis report

Static analysis result for SHA-256 452016b291acab9c…

MALICIOUS

PDF

42.9 KB Created: 2021-05-12 04:35:03 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 73cbb04ea736120dbfdb8dbb645d8c65 SHA-1: b8439901debe75191cd0996c65184ec85f744642 SHA-256: 452016b291acab9c34eef42536251e7346869516d867c2fbc7d931bfbecd6fd4
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 point to resources related to game hacks and free spins, suggesting a lure for potentially malicious downloads. The ML classifier also flagged this PDF as malicious with high confidence. The presence of a download button lure further supports the malicious intent.

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-roblox-website-game-hack
    • http://stiepariperpus.web.id/sarjana/repository/free-spins-coin-master-hack-2021_GM406889139.pdf
    • http://stiepariperpus.web.id/sarjana//repository/how-do-i-earn-robux_GM431946152.pdf
    • http://stiepariperpus.web.id/sarjana/repository/coin-master-hack-org_GM406889139.pdf
    • http://stiepariperpus.web.id/sarjana//repository/coin-master-game-2021-free-spin-link_GM406889139.pdf
    • http://stiepariperpus.web.id/sarjana//repository/coin-master-hack-game-download-ios_GM406889139.pdf
    • http://stiepariperpus.web.id/sarjana//repository/coin-master-free-spins-apple_GM406889139.pdf
    • http://stiepariperpus.web.id/sarjana//repository/how-to-hack-people-in-roblox_GM431946152.pdf
    • http://stiepariperpus.web.id/sarjana//repository/coin-master-free-spins-and-coins-blogspot_GM406889139.pdf
    • http://stiepariperpus.web.id/sarjana//repository/roblox-printables-free_GM431946152.pdf
    • http://stiepariperpus.web.id/sarjana/repository/mcpe-master-hack-unlimited-coins-latest-version_GM406889139.pdf
    • http://stiepariperpus.web.id/sarjana//repository/coin-master-free-100-spin_GM406889139.pdf
    • http://stiepariperpus.web.id/sarjana//repository/coin-master-hack-apk-with-fb-login-2021_GM406889139.pdf
    • http://stiepariperpus.web.id/sarjana//repository/coin-master-free-spin-link-list_GM406889139.pdf
    • http://stiepariperpus.web.id/sarjana/repository/how-can-you-get-free-spins-on-coin-master_GM406889139.pdf
    • http://stiepariperpus.web.id/sarjana/repository/free-spin-and-coin-links_GM406889139.pdf
    • http://stiepariperpus.web.id/sarjana//repository/mcpe_GM479516143.pdf
    • http://stiepariperpus.web.id/sarjana/repository/free-minecraft-premium-account_GM479516143.pdf
    • http://stiepariperpus.web.id/sarjana/repository/play-coin-master_GM406889139.pdf
    • http://stiepariperpus.web.id/sarjana/repository/coin-master-free-spins-generator-no-verification_GM406889139.pdf
    • http://stiepariperpus.web.id/sarjana/repository/roblox-c9m_GM431946152.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004b0f.bin
272baf5092d87e34096b19af6405eb9b2413df727220621c9265afd0f87b41d8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4B0F 25328 bytes
font_01_sfnt_off00008528.bin
4f49704c3d2016fd3d486e698c5af7a9a5561cf776b84bb9dfcb3ffa887994c7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8528 18372 bytes

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