Analysis

  • max time kernel
    65s
  • max time network
    72s
  • platform
    windows7_x64
  • resource
    win7-20240704-en
  • resource tags

    arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-x64system
  • submitted
    14-07-2024 23:34

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:3060
    • 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:2616
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3060 -s 1584
      2⤵
      • Program crash
      PID:780
  • 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:2872
    • C:\Windows\system32\MsiExec.exe
      C:\Windows\system32\MsiExec.exe -Embedding A73CA0DB22545917A4A743C115DC3B27
      2⤵
      • Loads dropped DLL
      PID:2908
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding 85C0CD3307A4E14D568165F118C1DEB2
      2⤵
      • Loads dropped DLL
      PID:1288

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    342B

    MD5

    a9e1ccf63121a974cbd15127552f7e85

    SHA1

    294cfa1e2db132d41257dcbdda3ab8c224280f28

    SHA256

    5b5e6f1e894cadf49d0f4846a3f323c6f693cc9e13676198673d545e185d405b

    SHA512

    0b1887dbd07a1b8058ba359229b244c5cc68e6a5f1c907349224328dc7ddcbf653f560b3b276baa04dc6a947d27f3a5df02ef0d6ceefb1a9eff04b510f08723f

  • C:\Users\Admin\AppData\Local\Temp\CabB79E.tmp

    Filesize

    70KB

    MD5

    49aebf8cbd62d92ac215b2923fb1b9f5

    SHA1

    1723be06719828dda65ad804298d0431f6aff976

    SHA256

    b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

    SHA512

    bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

  • C:\Users\Admin\AppData\Local\Temp\TarB7D0.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\MSID704.tmp

    Filesize

    122KB

    MD5

    9fe9b0ecaea0324ad99036a91db03ebb

    SHA1

    144068c64ec06fc08eadfcca0a014a44b95bb908

    SHA256

    e2cce64916e405976a1d0c522b44527d12b1cba19de25da62121cf5f41d184c9

    SHA512

    906641a73d69a841218ae90b83714a05af3537eec8ad1d761f58ac365cf005bdd74ad88f71c4437aaa126ac74fa46bcad424d17c746ab197eec2caa1bd838176

  • C:\Windows\Installer\MSID7D1.tmp

    Filesize

    211KB

    MD5

    a3ae5d86ecf38db9427359ea37a5f646

    SHA1

    eb4cb5ff520717038adadcc5e1ef8f7c24b27a90

    SHA256

    c8d190d5be1efd2d52f72a72ae9dfa3940ab3faceb626405959349654fe18b74

    SHA512

    96ecb3bc00848eeb2836e289ef7b7b2607d30790ffd1ae0e0acfc2e14f26a991c6e728b8dc67280426e478c70231f9e13f514e52c8ce7d956c1fad0e322d98e0

  • memory/3060-0-0x000000007406E000-0x000000007406F000-memory.dmp

    Filesize

    4KB

  • memory/3060-1-0x0000000000F40000-0x000000000100E000-memory.dmp

    Filesize

    824KB

  • memory/3060-2-0x0000000074060000-0x000000007474E000-memory.dmp

    Filesize

    6.9MB

  • memory/3060-92-0x000000007406E000-0x000000007406F000-memory.dmp

    Filesize

    4KB

  • memory/3060-93-0x0000000074060000-0x000000007474E000-memory.dmp

    Filesize

    6.9MB