Analysis

  • max time kernel
    8s
  • max time network
    9s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    04/07/2024, 22:14

General

  • Target

    SolaraB2/Solara/SolaraBootstrapper.exe

  • Size

    797KB

  • MD5

    36b62ba7d1b5e149a2c297f11e0417ee

  • SHA1

    ce1b828476274375e632542c4842a6b002955603

  • SHA256

    8353c5ace62fda6aba330fb3396e4aab11d7e0476f815666bd96a978724b9e0c

  • SHA512

    fddec44631e7a800abf232648bbf417969cd5cc650f32c17b0cdc12a0a2afeb9a5dbf5c1f899bd2fa496bd22307bfc8d1237c94920fceafd84f47e13a6b98b94

  • SSDEEP

    12288:n1mzgHpbzEu8AgpQojA1j855xU9pHIRxSNN:1mzgH385QojA1j855xSHI

Score
7/10

Malware Config

Signatures

  • Loads dropped DLL 3 IoCs
  • Blocklisted process makes network request 4 IoCs
  • Enumerates connected drives 3 TTPs 46 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Drops file in Windows directory 5 IoCs
  • Program crash 1 IoCs
  • Modifies system certificate store 2 TTPs 4 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 43 IoCs
  • Suspicious use of WriteProcessMemory 23 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\SolaraB2\Solara\SolaraBootstrapper.exe
    "C:\Users\Admin\AppData\Local\Temp\SolaraB2\Solara\SolaraBootstrapper.exe"
    1⤵
    • Modifies system certificate store
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1796
    • C:\Windows\SysWOW64\msiexec.exe
      "msiexec" /i "C:\Users\Admin\AppData\Local\Temp\node-v18.16.0-x64.msi" /qn
      2⤵
      • Enumerates connected drives
      • Suspicious use of AdjustPrivilegeToken
      PID:2484
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 1796 -s 1552
      2⤵
      • Program crash
      PID:2756
  • C:\Windows\system32\msiexec.exe
    C:\Windows\system32\msiexec.exe /V
    1⤵
    • Blocklisted process makes network request
    • Enumerates connected drives
    • Drops file in Windows directory
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2704
    • C:\Windows\system32\MsiExec.exe
      C:\Windows\system32\MsiExec.exe -Embedding 1CA0516E85D091A7514EAA38DFADBAA4
      2⤵
      • Loads dropped DLL
      PID:864
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding F3528E17FC71D7895FF4C11FD0816BE9
      2⤵
      • Loads dropped DLL
      PID:1964

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\94308059B57B3142E455B38A6EB92015

          Filesize

          70KB

          MD5

          49aebf8cbd62d92ac215b2923fb1b9f5

          SHA1

          1723be06719828dda65ad804298d0431f6aff976

          SHA256

          b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

          SHA512

          bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

        • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015

          Filesize

          342B

          MD5

          939f5c4ff57ddd3d3e68114eb846b34c

          SHA1

          10c4a9e00ae71bcc2fc5060b519ef4e485809fd6

          SHA256

          03a5f03e9e4ec61eea5979e5b62c2e96ee158e69071fd5aefe30dd647ab187ed

          SHA512

          c6aabbfede003972a2e9b66548f47f691c9fb5cc3d15f9405d672061f256945f703d31f0e7166b651a541d18207b90ca55b99d1f3bcc8d2012ae3eee46f8d016

        • C:\Users\Admin\AppData\Local\Temp\Tar238F.tmp

          Filesize

          181KB

          MD5

          4ea6026cf93ec6338144661bf1202cd1

          SHA1

          a1dec9044f750ad887935a01430bf49322fbdcb7

          SHA256

          8efbc21559ef8b1bcf526800d8070baad42474ce7198e26fa771dbb41a76b1d8

          SHA512

          6c7e0980e39aacf4c3689802353f464a08cd17753bd210ee997e5f2a455deb4f287a9ef74d84579dbde49bc96213cd2b8b247723919c412ea980aa6e6bfe218b

        • C:\Users\Admin\AppData\Local\Temp\node-v18.16.0-x64.msi

          Filesize

          30.1MB

          MD5

          0e4e9aa41d24221b29b19ba96c1a64d0

          SHA1

          231ade3d5a586c0eb4441c8dbfe9007dc26b2872

          SHA256

          5bfb6f3ab89e198539408f7e0e8ec0b0bd5efe8898573ec05b381228efb45a5d

          SHA512

          e6f27aecead72dffecbeaad46ebdf4b1fd3dbcddd1f6076ba183b654e4e32d30f7af1236bf2e04459186e993356fe2041840671be73612c8afed985c2c608913

        • C:\Windows\Installer\MSI34EC.tmp

          Filesize

          122KB

          MD5

          9fe9b0ecaea0324ad99036a91db03ebb

          SHA1

          144068c64ec06fc08eadfcca0a014a44b95bb908

          SHA256

          e2cce64916e405976a1d0c522b44527d12b1cba19de25da62121cf5f41d184c9

          SHA512

          906641a73d69a841218ae90b83714a05af3537eec8ad1d761f58ac365cf005bdd74ad88f71c4437aaa126ac74fa46bcad424d17c746ab197eec2caa1bd838176

        • C:\Windows\Installer\MSI358A.tmp

          Filesize

          211KB

          MD5

          a3ae5d86ecf38db9427359ea37a5f646

          SHA1

          eb4cb5ff520717038adadcc5e1ef8f7c24b27a90

          SHA256

          c8d190d5be1efd2d52f72a72ae9dfa3940ab3faceb626405959349654fe18b74

          SHA512

          96ecb3bc00848eeb2836e289ef7b7b2607d30790ffd1ae0e0acfc2e14f26a991c6e728b8dc67280426e478c70231f9e13f514e52c8ce7d956c1fad0e322d98e0

        • memory/1796-0-0x00000000740CE000-0x00000000740CF000-memory.dmp

          Filesize

          4KB

        • memory/1796-1-0x0000000000D90000-0x0000000000E5E000-memory.dmp

          Filesize

          824KB

        • memory/1796-2-0x00000000740C0000-0x00000000747AE000-memory.dmp

          Filesize

          6.9MB