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Analysis

  • max time kernel
    138s
  • max time network
    144s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231215-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
  • submitted
    24/01/2024, 19:13

General

  • Target

    callerboost.msi

  • Size

    4.3MB

  • MD5

    e5f7079ca80c83e485f3bce73ea6ed9f

  • SHA1

    0d7aaa0d35d08a4a9604e2eb78dec6611149c7ea

  • SHA256

    79831c653ebd81093024ba5c4fef1bd33d3279b2a679e53f7872cedbae994317

  • SHA512

    d895c3d379c1bdeb83a2cdd739039ebe716c1f5b78f69da59eb0432b7bd9000fc9529793068bbf9d3fac75278dcadaf638acd74e716f4311ade63cfdeefb6ff9

  • SSDEEP

    49152:mpUP19qhCxzT+WKjSXnbbAKVTu6YmvuKAFFheHEzM60CPxAimD7Z6lWtB18F:mpWCQbbG909AU0/uQI

Score
7/10

Malware Config

Signatures

  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 3 IoCs
  • Modifies file permissions 1 TTPs 2 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 11 IoCs
  • Checks SCSI registry key(s) 3 TTPs 5 IoCs

    SCSI information is often read in order to detect sandboxing environments.

  • Checks processor information in registry 2 TTPs 2 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 53 IoCs
  • Suspicious use of FindShellTrayWindow 2 IoCs
  • Suspicious use of WriteProcessMemory 19 IoCs
  • Uses Volume Shadow Copy service COM API

    The Volume Shadow Copy service is used to manage backups/snapshots.

Processes

  • C:\Windows\system32\msiexec.exe
    msiexec.exe /I C:\Users\Admin\AppData\Local\Temp\callerboost.msi
    1⤵
    • Enumerates connected drives
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of FindShellTrayWindow
    PID:1856
  • C:\Windows\system32\msiexec.exe
    C:\Windows\system32\msiexec.exe /V
    1⤵
    • Enumerates connected drives
    • Drops file in Windows directory
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1956
    • C:\Windows\system32\srtasks.exe
      C:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:2
      2⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:3272
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding 63A5F6C12C35BA599124F10EAE4180EA
      2⤵
      • Loads dropped DLL
      • Suspicious use of WriteProcessMemory
      PID:4256
      • C:\Windows\SysWOW64\ICACLS.EXE
        "C:\Windows\system32\ICACLS.EXE" "C:\Users\Admin\AppData\Local\Temp\MW-976aace0-d722-4184-8b62-c02376206d76\." /SETINTEGRITYLEVEL (CI)(OI)HIGH
        3⤵
        • Modifies file permissions
        PID:2484
      • C:\Windows\SysWOW64\EXPAND.EXE
        "C:\Windows\system32\EXPAND.EXE" -R files.cab -F:* files
        3⤵
        • Drops file in Windows directory
        PID:3868
      • C:\Users\Admin\AppData\Local\Temp\MW-976aace0-d722-4184-8b62-c02376206d76\files\vlc.exe
        "C:\Users\Admin\AppData\Local\Temp\MW-976aace0-d722-4184-8b62-c02376206d76\files\vlc.exe"
        3⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • Suspicious use of WriteProcessMemory
        PID:4360
        • \??\c:\temp\Autoit3.exe
          "c:\temp\Autoit3.exe" c:\temp\script.au3
          4⤵
          • Executes dropped EXE
          • Checks processor information in registry
          PID:4020
      • C:\Windows\SysWOW64\ICACLS.EXE
        "C:\Windows\system32\ICACLS.EXE" "C:\Users\Admin\AppData\Local\Temp\MW-976aace0-d722-4184-8b62-c02376206d76\." /SETINTEGRITYLEVEL (CI)(OI)LOW
        3⤵
        • Modifies file permissions
        PID:3172
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
    • Checks SCSI registry key(s)
    • Suspicious use of AdjustPrivilegeToken
    PID:2844

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\MW-976aace0-d722-4184-8b62-c02376206d76\files.cab

    Filesize

    4.0MB

    MD5

    9c0b5c15ba3b3f18f1a62cf3b1682f2d

    SHA1

    25bfe678611fc730b9398f4ef28cf7a7df82d6ff

    SHA256

    5c9547cbdf4b3a806191c8fc57b759266cce4338ee91617f0ec01c123dedeb21

    SHA512

    183ead6d807f49fc68087a25d0e2f4fb842dd4584ebe54c21fc4cf944020c4cfcfd16fd9d77159806efb69483e4a2754baa6352f54f6ec52cb33bd1254a05768

  • C:\Users\Admin\AppData\Local\Temp\MW-976aace0-d722-4184-8b62-c02376206d76\files\libvlc.dll

    Filesize

    1.5MB

    MD5

    475ad819eabbf4df440af6fbc3b432d1

    SHA1

    02d1b6314ba40bf2743e52140d61dd387029b3be

    SHA256

    f099a415e6a07121787b07889689127d63e88b459a9977ee8616ff6d26b8958f

    SHA512

    25cdf9b6ae54b6f11b9d608e0b40f8d260deaea438559d3a320961047812911b9cdb5dae47d70f00604d53b5a00a66dcc23de2b47006ad8ef0b6c32376214ee4

  • C:\Users\Admin\AppData\Local\Temp\MW-976aace0-d722-4184-8b62-c02376206d76\files\sqlite3.dll

    Filesize

    1.6MB

    MD5

    1ccb72d537bc0a956501f3a0fc84c8e5

    SHA1

    54cf4083fa1ed467811281fd7ca86428ca17cd18

    SHA256

    4e003f6e8dab88c9a1a95114c4f877b09552b45939bd069df7690ae5daba080f

    SHA512

    b4172df8a39f4ccc297187858ee7fd03af0921e124f73c7c11b80acaf1ce5579c385076cd405fd0ce9c5a32cc1e50f3a8cbdc03f0196301158bd3cfcf58df56c

  • C:\Users\Admin\AppData\Local\Temp\MW-976aace0-d722-4184-8b62-c02376206d76\files\vlc.exe

    Filesize

    966KB

    MD5

    035860e139ba6db1b38d5346cb6ff5b6

    SHA1

    d515303cbca3a8ae7a0463fecd418d81b314e650

    SHA256

    16197a321fc7b0a2a311e689621fe4a7cd50fdcb2d163973a31e4fd6352232d7

    SHA512

    14dab9108d85af72001631130923b94483dd1440f24a8eedad41756db3030c5e11e80ec894922c389e09c86e8b721bcbd8594bd3646f484560f89963a7e18cc7

  • C:\Users\Admin\AppData\Local\Temp\MW-976aace0-d722-4184-8b62-c02376206d76\msiwrapper.ini

    Filesize

    1KB

    MD5

    f0a5d8e4bf1e1a6e6e0c659d2e971b59

    SHA1

    2385331d0d2e9721f15312a4fff45f7625daaff2

    SHA256

    0473d47759cdf2afe5ca6614e145d28fbdbb764e1b4c503883f0926e5ff26e15

    SHA512

    abf6588a0a44c9c96615c4c2ee4e39e25c6acf5a3f7144b9f17723c0a074957e54f981972da52a6497072a0343a3fd1994d43e2e70efdff55fccef3320e7a68a

  • C:\Users\Admin\AppData\Local\Temp\MW-976aace0-d722-4184-8b62-c02376206d76\msiwrapper.ini

    Filesize

    1KB

    MD5

    54867201259ed69699c5bc56d2558366

    SHA1

    4b67528abbc1fcd137733f94367f98a533ce8ff9

    SHA256

    635f65e7f423f3d11d618346f2f7f25b7ed92af17beaa2cb0f54a5a7b5dc4990

    SHA512

    1d3e71cd27a1ce782ef93cfd7b8ef26f09b75df01f5e067e46d5becb41299609516e0b7ef470f19fe8c186c322b3bf23101eb99424437f56719448fda7ac10e4

  • C:\Windows\Installer\MSI2E1B.tmp

    Filesize

    208KB

    MD5

    d82b3fb861129c5d71f0cd2874f97216

    SHA1

    f3fe341d79224126e950d2691d574d147102b18d

    SHA256

    107b32c5b789be9893f24d5bfe22633d25b7a3cae80082ef37b30e056869cc5c

    SHA512

    244b7675e70ab12aa5776f26e30577268573b725d0f145bfc6b848d2bd8f014c9c6eab0fc0e4f0a574ed9ca1d230b2094dd88a2146ef0a6db70dbd815f9a5f5b

  • \??\GLOBALROOT\Device\HarddiskVolumeShadowCopy2\System Volume Information\SPP\metadata-2

    Filesize

    23.0MB

    MD5

    e89a6226dce381ffb3817d2a84a59c66

    SHA1

    bf0b5372597b1f5436ad7877583ebe45df835609

    SHA256

    176471cf0dcbb9e8ed4e4b6bd475b7a6f3af04b255eb3fa9d1e6aaff6b83e750

    SHA512

    fdbea9368f86dfd99777cc5ec6baec66466f772063ccd12716f086a8ddc78c29bdb31502598241e5154b7ac1875285427ec482548979711162aadd981b419609

  • \??\Volume{57af6234-0000-0000-0000-d01200000000}\System Volume Information\SPP\OnlineMetadataCache\{b6ea7d8c-c370-47f5-9c94-857668a34902}_OnDiskSnapshotProp

    Filesize

    6KB

    MD5

    2d61b4ff12148ec11e8f3f81ba86ed61

    SHA1

    9e01599a9b0214a09366bfd91ef7ac677ef236d1

    SHA256

    474c07f6d3bdf980e9c7503d33cd500934f5282fc15c96954b17e319e7327ca5

    SHA512

    666916c609d6cbdec3d13d14294f9f7f539a432c8448ccb79b9c0c7aecc3f329cc6c536727e553e9805fe563d95595be80f08489396d3e44bcd1931bbcf83f3b

  • \??\c:\temp\Autoit3.exe

    Filesize

    872KB

    MD5

    c56b5f0201a3b3de53e561fe76912bfd

    SHA1

    2a4062e10a5de813f5688221dbeb3f3ff33eb417

    SHA256

    237d1bca6e056df5bb16a1216a434634109478f882d3b1d58344c801d184f95d

    SHA512

    195b98245bb820085ae9203cdb6d470b749d1f228908093e8606453b027b7d7681ccd7952e30c2f5dd40f8f0b999ccfc60ebb03419b574c08de6816e75710d2c

  • \??\c:\temp\script.au3

    Filesize

    470KB

    MD5

    e810ae3de9def29229459bdac592376e

    SHA1

    e0a177c4c668db3ff80f6930924d63582f14084a

    SHA256

    a86cd95594771888b1ca6f4bf6aeafff8820aa6680665305520e0d2f9c0ac4fa

    SHA512

    33e7aec0a7a8690e4a171a73370a3c15663618b318b2264d0df00d2a5d71cab2b552957f0cb7f6f87e4d31ebedd16748e7ccd8379efab02f77bec0b120d244b7

  • \??\c:\temp\test.txt

    Filesize

    76B

    MD5

    36a2bafe0e0b48055b7d081a5c65ae04

    SHA1

    264e2a6296ce42500c1b3cd102f10b08e2c1ff05

    SHA256

    805c7daeb376520828028a8c534984f8a268942253aa332dfe7066a0da669f46

    SHA512

    a50e1bf4416e7bcc847bab7886a61316d03922cb87cd9f76075d080255c2341eefde4a75fb88b2777f9e5fa3d0c96844dc12bf5def31c88ce0948431a6b20c54

  • memory/4020-100-0x0000000005EB0000-0x00000000061FE000-memory.dmp

    Filesize

    3.3MB

  • memory/4020-99-0x00000000049C0000-0x0000000005990000-memory.dmp

    Filesize

    15.8MB

  • memory/4020-106-0x0000000005EB0000-0x00000000061FE000-memory.dmp

    Filesize

    3.3MB

  • memory/4360-90-0x0000023117CC0000-0x0000023117E5F000-memory.dmp

    Filesize

    1.6MB

  • memory/4360-81-0x0000023117CC0000-0x0000023117E5F000-memory.dmp

    Filesize

    1.6MB

  • memory/4360-89-0x00000000608D0000-0x0000000060A5D000-memory.dmp

    Filesize

    1.6MB

  • memory/4360-88-0x00007FF6C1500000-0x00007FF6C15F8000-memory.dmp

    Filesize

    992KB