Malicious PDF — malware analysis report

Static analysis result for SHA-256 e4e746223ac86db4…

MALICIOUS

PDF

32.9 KB Created: 2021-07-05 00:06:09 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: c2d37e612946bd0dcf7ea83049998ed3 SHA-1: e47d6f910eab30bb90fd76d40f903169d076a9f3 SHA-256: e4e746223ac86db4af67d594643918b124e5350c41f7c155826a7d32f481db41
102 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains numerous links to external websites, many of which are hosted on domains associated with game cheats and hacks. The ML classifier strongly indicates maliciousness, and the presence of a 'download button' lure suggests a phishing or malware distribution attempt. While no scripts were explicitly extracted, the PDF structure and embedded URLs point towards a malicious intent to redirect users to potentially harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9824

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/479516143/best-free-minecraft-skins-game-hack
    • http://e-pustaka.stkipadzkia.ac.id/repository/como-instalar-hacks-en-roblox-2021_GM431946152.pdf
    • http://e-pustaka.stkipadzkia.ac.id/repository/coin-master-hack-dot-xyz_GM406889139.pdf
    • http://e-pustaka.stkipadzkia.ac.id/repository/roblox-lucky-block-battlegrounds-cheats_GM431946152.pdf
    • http://e-pustaka.stkipadzkia.ac.id/repository/roblox-noob-army-t-shirt-free_GM431946152.pdf
    • http://e-pustaka.stkipadzkia.ac.id/repository/free-robux-rocco_GM431946152.pdf
    • http://e-pustaka.stkipadzkia.ac.id/repository/roblox-one-piece-millennium-stats-hack-script_GM431946152.pdf
    • http://e-pustaka.stkipadzkia.ac.id/repository/cheats-in-pet-rnch-roblox_GM431946152.pdf
    • http://e-pustaka.stkipadzkia.ac.id/repository/builders-club-roblox-cheats_GM431946152.pdf
    • http://e-pustaka.stkipadzkia.ac.id/repository/free-robux-by-watching-ads_GM431946152.pdf
    • http://e-pustaka.stkipadzkia.ac.id/repository/redeem-roblox-card-free-2021_GM431946152.pdf
    • http://e-pustaka.stkipadzkia.ac.id/repository/someone-hacked-my-roblox-account-and-changed-my-password_GM431946152.pdf
    • http://e-pustaka.stkipadzkia.ac.id/repository/mcpe-master-hack-unlimited-coins-apk_GM406889139.pdf
    • http://e-pustaka.stkipadzkia.ac.id/repository/free-spin-app-for-coin-master_GM406889139.pdf
    • http://e-pustaka.stkipadzkia.ac.id/repository/free-robux-hack-us_GM431946152.pdf
    • http://e-pustaka.stkipadzkia.ac.id/repository/daily-free-spins-coin-master-heaven_GM406889139.pdf
    • http://e-pustaka.stkipadzkia.ac.id/repository/roblox-robux-cheat-engine-address_GM431946152.pdf
    • http://e-pustaka.stkipadzkia.ac.id/repository/game-test-roblox-free-bc_GM431946152.pdf
    • http://e-pustaka.stkipadzkia.ac.id/repository/coinmaster-rewards_GM406889139.pdf
    • http://e-pustaka.stkipadzkia.ac.id/repository/artmoney-hack-roblox_GM431946152.pdf
    • http://e-pustaka.stkipadzkia.ac.id/repository/free-roblox-checker_GM431946152.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002ae5.bin
5286cef50b29e5edc63c43a9886c78c57292edf0dc616d1c774162118718987d
pdf-font-stream PDF embedded font (sfnt) at offset 0x2AE5 23088 bytes
font_01_sfnt_off00005e3c.bin
18712d60a953fc3fe86cc83c95b3ca3d74ed70e84abc18f4745dfc47eeaf269f
pdf-font-stream PDF embedded font (sfnt) at offset 0x5E3C 18244 bytes