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Analysis

  • max time kernel
    359s
  • max time network
    421s
  • platform
    windows7_x64
  • resource
    win7-20231129-en
  • resource tags

    arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
  • submitted
    24/06/2024, 08:19

General

  • Target

    SolaraBootstrapper.exe

  • Size

    9.3MB

  • MD5

    a3a0a74ae9deaca4f0b17ff3b786a69d

  • SHA1

    49d033bdd1f2778a25decd8ec56b4a09082b05ad

  • SHA256

    ebdfc91afede21255f0a280514ef45f4335fac94f8b77562af3512fb01f83b68

  • SHA512

    c0b3cc5c12d20fef209bc2d838137cf7ac3eb9530738a8430f13f26b776ef8347fdaf9d00469bd82cf5e84d6eaf21a8ef2e2abd403f8708bb6ee172388cf743f

  • SSDEEP

    196608:Aqw6WBeyrZJvSzhEz2T2cU7Lu4MoXZZe5BvqBbq5jUx5ePz0+pgapx:UahMW+XRXZZKBGWoiFO6x

Score
7/10

Malware Config

Signatures

  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 8 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
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • 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 27 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\SolaraBootstrapper.exe
    "C:\Users\Admin\AppData\Local\Temp\SolaraBootstrapper.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2392
    • C:\Users\Admin\AppData\Local\Temp\RarSFX0\SolaraBootstrapper.exe
      "C:\Users\Admin\AppData\Local\Temp\RarSFX0\SolaraBootstrapper.exe"
      2⤵
      • Executes dropped EXE
      • Modifies system certificate store
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:3032
      • C:\Windows\SysWOW64\msiexec.exe
        "msiexec" /i "C:\Users\Admin\AppData\Local\Temp\node-v18.16.0-x64.msi" /qn
        3⤵
        • Enumerates connected drives
        • Suspicious use of AdjustPrivilegeToken
        PID:3060
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 3032 -s 1564
        3⤵
        • Loads dropped DLL
        • Program crash
        PID:2272
  • 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:2964
    • C:\Windows\system32\MsiExec.exe
      C:\Windows\system32\MsiExec.exe -Embedding A58E0EA4F3F486324E4A1771A7A30F42
      2⤵
      • Loads dropped DLL
      PID:1096
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding 575356D7C1D071A327869F342EFC0A7C
      2⤵
      • Loads dropped DLL
      PID:2264

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\Content\F0ACCF77CDCBFF39F6191887F6D2D357

    Filesize

    1KB

    MD5

    a266bb7dcc38a562631361bbf61dd11b

    SHA1

    3b1efd3a66ea28b16697394703a72ca340a05bd5

    SHA256

    df545bf919a2439c36983b54cdfc903dfa4f37d3996d8d84b4c31eec6f3c163e

    SHA512

    0da8ef4f8f6ed3d16d2bc8eb816b9e6e1345dfe2d91160196c47e6149a1d6aedaafadcefd66acdea7f72dcf0832770192ceac15b0c559c4ccc2c0e5581d5aefc

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

    Filesize

    342B

    MD5

    867b2da889e17af14e99e320ebadda2a

    SHA1

    66f177eb2f921950a52a05c6c02e809f3994c836

    SHA256

    d303a527f6c3be287d300b9125c280599bb8ba334cf772399f03a919db301bef

    SHA512

    74a316843e59b663224294182131bc73af4b543bd494bc4109f9c0e67f242d11be1c98822e910b556d2affbc78d19098b26ee75354112c9460f62cfbe591ec27

  • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\F0ACCF77CDCBFF39F6191887F6D2D357

    Filesize

    242B

    MD5

    5dd30bafc1a3d629e72b4309c9d74709

    SHA1

    02b19c5c3b1968f2def48ad2908a73c2b6b227ab

    SHA256

    d94c4f4ee3899fb354703d72de169c9b252838df0853146f2f97f091ec1f9636

    SHA512

    221eff7127772aa15f75ee43d229175e7830529c2813bb4d3dba509172d6cd6e82e12e07776ab2b34e570750976254297c8fc82f13cfaa554e819b081e50c50a

  • C:\Users\Admin\AppData\Local\Temp\RarSFX0\SolaraBootstrapper.exe

    Filesize

    797KB

    MD5

    36b62ba7d1b5e149a2c297f11e0417ee

    SHA1

    ce1b828476274375e632542c4842a6b002955603

    SHA256

    8353c5ace62fda6aba330fb3396e4aab11d7e0476f815666bd96a978724b9e0c

    SHA512

    fddec44631e7a800abf232648bbf417969cd5cc650f32c17b0cdc12a0a2afeb9a5dbf5c1f899bd2fa496bd22307bfc8d1237c94920fceafd84f47e13a6b98b94

  • C:\Users\Admin\AppData\Local\Temp\Tar47AF.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\MSI7787.tmp

    Filesize

    122KB

    MD5

    9fe9b0ecaea0324ad99036a91db03ebb

    SHA1

    144068c64ec06fc08eadfcca0a014a44b95bb908

    SHA256

    e2cce64916e405976a1d0c522b44527d12b1cba19de25da62121cf5f41d184c9

    SHA512

    906641a73d69a841218ae90b83714a05af3537eec8ad1d761f58ac365cf005bdd74ad88f71c4437aaa126ac74fa46bcad424d17c746ab197eec2caa1bd838176

  • C:\Windows\Installer\MSI7834.tmp

    Filesize

    211KB

    MD5

    a3ae5d86ecf38db9427359ea37a5f646

    SHA1

    eb4cb5ff520717038adadcc5e1ef8f7c24b27a90

    SHA256

    c8d190d5be1efd2d52f72a72ae9dfa3940ab3faceb626405959349654fe18b74

    SHA512

    96ecb3bc00848eeb2836e289ef7b7b2607d30790ffd1ae0e0acfc2e14f26a991c6e728b8dc67280426e478c70231f9e13f514e52c8ce7d956c1fad0e322d98e0

  • memory/3032-18-0x0000000073EF0000-0x00000000745DE000-memory.dmp

    Filesize

    6.9MB

  • memory/3032-59-0x0000000073EF0000-0x00000000745DE000-memory.dmp

    Filesize

    6.9MB

  • memory/3032-55-0x0000000073EFE000-0x0000000073EFF000-memory.dmp

    Filesize

    4KB

  • memory/3032-17-0x0000000000CB0000-0x0000000000D7E000-memory.dmp

    Filesize

    824KB

  • memory/3032-16-0x0000000073EFE000-0x0000000073EFF000-memory.dmp

    Filesize

    4KB