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Analysis

  • max time kernel
    119s
  • max time network
    119s
  • platform
    windows7_x64
  • resource
    win7-20240419-en
  • resource tags

    arch:x64arch:x86image:win7-20240419-enlocale:en-usos:windows7-x64system
  • submitted
    24/06/2024, 20:48

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:2468
    • 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:2532
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2468 -s 1532
      2⤵
      • Program crash
      PID:1596
  • 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:2556
    • C:\Windows\system32\MsiExec.exe
      C:\Windows\system32\MsiExec.exe -Embedding A5E103BBC0A41B5199DE24DD43FCFB54
      2⤵
      • Loads dropped DLL
      PID:2432
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding ADAA3C3824C05251BAA05E975E598533
      2⤵
      • Loads dropped DLL
      PID:1832
  • C:\Windows\explorer.exe
    "C:\Windows\explorer.exe"
    1⤵
      PID:2888

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    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

      72663535b88741133aa645215d6dc458

      SHA1

      2c99bcbe74ade3c634dae6fc77431249dad5825a

      SHA256

      fe399767d707d490a62cc9da3aeb463fa812186594f35e2d0134ec8052269006

      SHA512

      726e8a60300695770881319ab81561f8364087130cf9dbfaeccecb4f536888b4e1b076215f7990b21838ed29887cb3bd91c769daa7a4ae3532bdda6bfd632d3b

    • C:\Users\Admin\AppData\Local\Temp\Tar244A.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\MSI35A7.tmp

      Filesize

      122KB

      MD5

      9fe9b0ecaea0324ad99036a91db03ebb

      SHA1

      144068c64ec06fc08eadfcca0a014a44b95bb908

      SHA256

      e2cce64916e405976a1d0c522b44527d12b1cba19de25da62121cf5f41d184c9

      SHA512

      906641a73d69a841218ae90b83714a05af3537eec8ad1d761f58ac365cf005bdd74ad88f71c4437aaa126ac74fa46bcad424d17c746ab197eec2caa1bd838176

    • \Windows\Installer\MSI35E7.tmp

      Filesize

      211KB

      MD5

      a3ae5d86ecf38db9427359ea37a5f646

      SHA1

      eb4cb5ff520717038adadcc5e1ef8f7c24b27a90

      SHA256

      c8d190d5be1efd2d52f72a72ae9dfa3940ab3faceb626405959349654fe18b74

      SHA512

      96ecb3bc00848eeb2836e289ef7b7b2607d30790ffd1ae0e0acfc2e14f26a991c6e728b8dc67280426e478c70231f9e13f514e52c8ce7d956c1fad0e322d98e0

    • memory/2468-0-0x00000000741FE000-0x00000000741FF000-memory.dmp

      Filesize

      4KB

    • memory/2468-1-0x0000000000010000-0x00000000000DE000-memory.dmp

      Filesize

      824KB

    • memory/2468-2-0x00000000741F0000-0x00000000748DE000-memory.dmp

      Filesize

      6.9MB

    • memory/2468-96-0x00000000741F0000-0x00000000748DE000-memory.dmp

      Filesize

      6.9MB