Malicious PDF — malware analysis report

Static analysis result for SHA-256 df36eb58e2dcad52…

MALICIOUS

PDF

46.5 KB Created: 2021-06-03 05:23:52 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: c90d55b5fa13fce38bc2006509e393da SHA-1: 403cedfaa833e8d77d588f7b0d37e8e1ee870b65 SHA-256: df36eb58e2dcad5249d9eeefa9c3cd30f5d038c4d9787e7777c1123f11044dd6
142 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains numerous links to external websites, many of which appear to be related to game hacks and cheats, suggesting a lure for potentially unwanted software. The presence of a remote support tool lure and a fake download button further indicates a malicious intent to trick the user into compromising their system. No scripts were extracted, but the document's structure and embedded links strongly suggest a phishing or social engineering attack.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9748

Heuristics 5

  • 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.
  • Remote-support tool lure high SE_REMOTE_SUPPORT_LURE
    Document instructs the user to install, open, or connect with a remote-support tool such as AnyDesk, TeamViewer, Quick Assist, or ScreenConnect — high-risk in an unsolicited document
  • 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.online/app/479516143/free-minecraft-skins-pe-game-hack
    • http://elibrary.smknesbu.sch.id/repository/coin-master-hack-cheat-engine_GM406889139.pdf
    • http://elibrary.smknesbu.sch.id/repository/coin-master-free-coins-link-2021_GM406889139.pdf
    • http://elibrary.smknesbu.sch.id/repository/moon-static-coin-master-generator-hacks-free_GM406889139.pdf
    • http://elibrary.smknesbu.sch.id/repository/how-to-get-free-pet-food-on-coin-master_GM406889139.pdf
    • http://elibrary.smknesbu.sch.id/repository/free-robux-2021_GM431946152.pdf
    • http://elibrary.smknesbu.sch.id/repository/free-robux-no-verification-or-survey-2021_GM431946152.pdf
    • http://elibrary.smknesbu.sch.id/repository/free-robux-2021-no-human-verification_GM431946152.pdf
    • http://elibrary.smknesbu.sch.id/repository/how-to-get-free-robux-without-downloading-anything_GM431946152.pdf
    • http://elibrary.smknesbu.sch.id/repository/hack-coin-master-free-spins_GM406889139.pdf
    • http://elibrary.smknesbu.sch.id/repository/coin-master-free-spins-app_GM406889139.pdf
    • http://elibrary.smknesbu.sch.id/repository/free-spin-sites-for-coin-master_GM406889139.pdf
    • http://elibrary.smknesbu.sch.id/repository/safe-hack-for-coin-master-android_GM406889139.pdf
    • http://elibrary.smknesbu.sch.id/repository/rbx-roblox-robux_GM431946152.pdf
    • http://elibrary.smknesbu.sch.id/repository/roblox-mobile-hack_GM431946152.pdf
    • http://elibrary.smknesbu.sch.id/repository/show-me-how-to-get-free-robux_GM431946152.pdf
    • http://elibrary.smknesbu.sch.id/repository/roblox-hack-tool_GM431946152.pdf
    • http://elibrary.smknesbu.sch.id/repository/free-daily-spins-coin-master-2021_GM406889139.pdf
    • http://elibrary.smknesbu.sch.id/repository/how-to-hack-coins-in-mcpe-master_GM406889139.pdf
    • http://elibrary.smknesbu.sch.id/repository/hack-coin-master-apk-32_GM406889139.pdf
    • http://elibrary.smknesbu.sch.id/repository/minecraft-online-free-no-download_GM479516143.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005420.bin
f3d025fe279563f4911e17ff1b8e91a839c7d8201eb9b3908289ab0e10efe101		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5420 24124 bytes
font_01_sfnt_off00008a8a.bin
20dc0c19885f9eb84a70adf762c7af2bb5b336981fcfa4d14a25b177438c211a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8A8A 2856 bytes
font_02_sfnt_off0000945f.bin
38d2ac9589c51081060ff5b719ef2985d9213db1bca3ba0b1a36204662c24b5d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x945F 17892 bytes

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