Analysis

  • max time kernel
    134s
  • max time network
    104s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240426-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
  • submitted
    25/05/2024, 12:33

General

  • Target
    2024-05-25_d592f74a5aeafb25e826a0e492852ff3_cobalt-strike_cobaltstrike_xmrig.exe
  • Size 11.6MB
  • Sample240525-pradyabd2y
  • SHA256 6842564a2e2df38fb12125659bd131c9c6fc5154d14f73c254d834c11645e1b5
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Signatures

  • Cobalt Strike reflective loader 1 IoCs

    Detects the reflective loader used by Cobalt Strike.

  • Cobaltstrike

    Detected malicious payload which is part of Cobaltstrike.

  • xmrig

    XMRig is a high performance, open source, cross platform CPU/GPU miner.

  • Detects Reflective DLL injection artifacts 1 IoCs
  • Detects executables containing URLs to raw contents of a Github gist 7 IoCs
  • XMRig Miner payload 7 IoCs
  • Drops desktop.ini file(s) 1 IoCs
  • Legitimate hosting services abused for malware hosting/C2 1 TTPs 4 IoCs
  • Drops autorun.inf file 1 TTPs 3 IoCs

    Malware can abuse Windows Autorun to spread further via attached volumes.

  • Drops file in Program Files directory 64 IoCs
  • Modifies Internet Explorer start page 1 TTPs 1 IoCs
  • Modifies system certificate store 2 TTPs 6 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2024-05-25_d592f74a5aeafb25e826a0e492852ff3_cobalt-strike_cobaltstrike_xmrig.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-05-25_d592f74a5aeafb25e826a0e492852ff3_cobalt-strike_cobaltstrike_xmrig.exe"
    1⤵
    • Drops desktop.ini file(s)
    • Drops autorun.inf file
    • Drops file in Program Files directory
    • Modifies Internet Explorer start page
    • Modifies system certificate store
    • Suspicious use of AdjustPrivilegeToken
    PID:432

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

        7-zip32.dll

        • Path C:\Program Files\7-Zip\7-zip32.dll
        • Size 11.8MB
        • SHA256 380637f82fd6f4991b0357a9b61eebaec895ae71ccc9fed753c1bb94b372a797
        • MD5 SHA1 SHA512 SSDEEP

        77EC63BDA74BD0D0E0426DC8F8008506

        • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\77EC63BDA74BD0D0E0426DC8F8008506
        • Size 330B
        • SHA256 001c89bd76c8b87eba2722d5d405cce32abfb6fc59c221919265a1976af001ac
        • MD5 SHA1 SHA512

        memory/432-0-0x00000000001F0000-0x0000000000200000-memory.dmp

        memory/432-297-0x0000000000400000-0x00000000010B2000-memory.dmp

        memory/432-757-0x0000000000400000-0x00000000010B2000-memory.dmp

        memory/432-1206-0x0000000000400000-0x00000000010B2000-memory.dmp

        memory/432-1728-0x0000000000400000-0x00000000010B2000-memory.dmp

        memory/432-1924-0x0000000000400000-0x00000000010B2000-memory.dmp

        memory/432-1970-0x0000000000060000-0x0000000000062000-memory.dmp

        memory/432-1974-0x00007FFA2C410000-0x00007FFA2C5B1000-memory.dmp

        memory/432-1976-0x00007FFA2C410000-0x00007FFA2C5B1000-memory.dmp

        memory/432-1975-0x0000000000400000-0x00000000010B2000-memory.dmp