Resubmissions

27-07-2023 11:12

230727-nbajbsec22 10

27-07-2023 08:08

230727-j1rfxscg7s 10

Analysis

  • max time kernel
    122s
  • max time network
    126s
  • platform
    windows7_x64
  • resource
    win7-20230712-en
  • resource tags

    arch:x64arch:x86image:win7-20230712-enlocale:en-usos:windows7-x64system
  • submitted
    27-07-2023 11:12

General

  • Target

    6e068b9dcd8df03fd6456faeb4293c036b91a130a18f86a945c8964a576c1c70.msi

  • Size

    1.8MB

  • MD5

    247a8cc39384e93d258360a11381000f

  • SHA1

    23893f035f8564dfea5030b9fdd54120d96072bb

  • SHA256

    6e068b9dcd8df03fd6456faeb4293c036b91a130a18f86a945c8964a576c1c70

  • SHA512

    336eca9569c0072e92ce16743f47ba9d6be06390a196f8e81654d6a42642ff5c99e423bfed00a8396bb0b037d5b54df8c3bde53757646e7e1a204f3be271c998

  • SSDEEP

    24576:ftncpVGP4I9FsEsyt8l+E+s1tB7parWM0+AL5QgZQvUXtAqlU0ZyMRp:epUP59FBJZEH1X1arF0vN/nX

Score
7/10

Malware Config

Signatures

  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 6 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 13 IoCs
  • Modifies data under HKEY_USERS 43 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 57 IoCs
  • Suspicious use of FindShellTrayWindow 2 IoCs
  • Suspicious use of WriteProcessMemory 23 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\6e068b9dcd8df03fd6456faeb4293c036b91a130a18f86a945c8964a576c1c70.msi
    1⤵
    • Enumerates connected drives
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of FindShellTrayWindow
    PID:1328
  • 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:1756
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding 71A5FC5C03275747818646CE1C27FCA0
      2⤵
      • Loads dropped DLL
      • Suspicious use of WriteProcessMemory
      PID:2832
      • C:\Windows\SysWOW64\ICACLS.EXE
        "C:\Windows\system32\ICACLS.EXE" "C:\Users\Admin\AppData\Local\Temp\MW-69a667cb-6384-4195-8d43-87693735eb8f\." /SETINTEGRITYLEVEL (CI)(OI)HIGH
        3⤵
        • Modifies file permissions
        PID:2020
      • C:\Windows\SysWOW64\EXPAND.EXE
        "C:\Windows\system32\EXPAND.EXE" -R files.cab -F:* files
        3⤵
        • Drops file in Windows directory
        PID:1524
      • C:\Users\Admin\AppData\Local\Temp\MW-69a667cb-6384-4195-8d43-87693735eb8f\files\Autoit3.exe
        "C:\Users\Admin\AppData\Local\Temp\MW-69a667cb-6384-4195-8d43-87693735eb8f\files\Autoit3.exe" UGtZgHHT.au3
        3⤵
        • Executes dropped EXE
        PID:1624
      • C:\Windows\SysWOW64\ICACLS.EXE
        "C:\Windows\system32\ICACLS.EXE" "C:\Users\Admin\AppData\Local\Temp\MW-69a667cb-6384-4195-8d43-87693735eb8f\." /SETINTEGRITYLEVEL (CI)(OI)LOW
        3⤵
        • Modifies file permissions
        PID:2172
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:1400
  • C:\Windows\system32\DrvInst.exe
    DrvInst.exe "1" "200" "STORAGE\VolumeSnapshot\HarddiskVolumeSnapshot19" "" "" "61530dda3" "0000000000000000" "00000000000003CC" "00000000000005E0"
    1⤵
    • Drops file in Windows directory
    • Modifies data under HKEY_USERS
    • Suspicious use of AdjustPrivilegeToken
    PID:3036

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\MW-69a667cb-6384-4195-8d43-87693735eb8f\files.cab

    Filesize

    1.6MB

    MD5

    e7c3b16ed93b760546ae6756b12644da

    SHA1

    99b3b1af70b45b4b815a814f61f9b6e509cd3bb6

    SHA256

    659733a584c52078ac6b568dfb34a089bef2b3835a5ea737d32c1623a468b743

    SHA512

    b6eeaaeeb1f7c8335076075bc8033d5d4744544f3937eeaddcbef5f7ba257a64c20a47f8388c1e8f10c5821da8abe0683be8fd60c3e1a9aea25e4a705e2f8b41

  • C:\Users\Admin\AppData\Local\Temp\MW-69a667cb-6384-4195-8d43-87693735eb8f\files\Autoit3.exe

    Filesize

    872KB

    MD5

    c56b5f0201a3b3de53e561fe76912bfd

    SHA1

    2a4062e10a5de813f5688221dbeb3f3ff33eb417

    SHA256

    237d1bca6e056df5bb16a1216a434634109478f882d3b1d58344c801d184f95d

    SHA512

    195b98245bb820085ae9203cdb6d470b749d1f228908093e8606453b027b7d7681ccd7952e30c2f5dd40f8f0b999ccfc60ebb03419b574c08de6816e75710d2c

  • C:\Users\Admin\AppData\Local\Temp\MW-69a667cb-6384-4195-8d43-87693735eb8f\files\Autoit3.exe

    Filesize

    872KB

    MD5

    c56b5f0201a3b3de53e561fe76912bfd

    SHA1

    2a4062e10a5de813f5688221dbeb3f3ff33eb417

    SHA256

    237d1bca6e056df5bb16a1216a434634109478f882d3b1d58344c801d184f95d

    SHA512

    195b98245bb820085ae9203cdb6d470b749d1f228908093e8606453b027b7d7681ccd7952e30c2f5dd40f8f0b999ccfc60ebb03419b574c08de6816e75710d2c

  • C:\Users\Admin\AppData\Local\Temp\MW-69a667cb-6384-4195-8d43-87693735eb8f\files\UGtZgHHT.au3

    Filesize

    757KB

    MD5

    1b524d03b27b94906c1a87b207e08179

    SHA1

    8fbad6275708a69b764992b05126e053134fb9e9

    SHA256

    1af981d9c5128b3657cdb5506d61563e0d1908b957e5dd6842059d6d3cfdc622

    SHA512

    1e0f2aea5daa40b6cb7df61ba86e0956356ab7b7ecfc9e2934bc85eec8d42d3aeb32858dd0ead24e82ef261a4120f6374263b7af9256eb79a294d51273cc4f6e

  • C:\Users\Admin\AppData\Local\Temp\MW-69a667cb-6384-4195-8d43-87693735eb8f\msiwrapper.ini

    Filesize

    1KB

    MD5

    72f164362bf420308c15725a7444e923

    SHA1

    d6a023b61850481bf465994395944ad997b2f775

    SHA256

    0a2e3ecee9589e69237ad93ad6e71cdc5fc3d73502e0f46b8a057ef55536baa2

    SHA512

    300249d22dbb1542d584d167fb63b0bfbfa54845affca0fe24f7d2e6a01c7153e9e22c172c09182e426d49417acbb184645548dcd408c1aabfee729eacfab0da

  • C:\Users\Admin\AppData\Local\Temp\MW-69a667cb-6384-4195-8d43-87693735eb8f\msiwrapper.ini

    Filesize

    1KB

    MD5

    72f164362bf420308c15725a7444e923

    SHA1

    d6a023b61850481bf465994395944ad997b2f775

    SHA256

    0a2e3ecee9589e69237ad93ad6e71cdc5fc3d73502e0f46b8a057ef55536baa2

    SHA512

    300249d22dbb1542d584d167fb63b0bfbfa54845affca0fe24f7d2e6a01c7153e9e22c172c09182e426d49417acbb184645548dcd408c1aabfee729eacfab0da

  • C:\Users\Admin\AppData\Local\Temp\MW-69a667cb-6384-4195-8d43-87693735eb8f\msiwrapper.ini

    Filesize

    1KB

    MD5

    7f852a8efa5616ca538bdfaa73c01100

    SHA1

    0f1988d48f842d9f90dc1dd1ada3bb919c06fa6b

    SHA256

    2f4d25fb69d86fe824480c0c57da5959fcc118e66c99a0639a115e8f466a1219

    SHA512

    62a49f233bbc402ac4ac41f21b822dc5955e0f6c5f44b3400bf37533b29db54a5f343ad5357171bf9ccc7de60488850b5c30c4f92bc7eb2e82441510044a3551

  • C:\Users\Admin\AppData\Local\Temp\MW-69a667cb-6384-4195-8d43-87693735eb8f\msiwrapper.ini

    Filesize

    438B

    MD5

    d2a87c3b52d7680234d2a53c65524d1b

    SHA1

    52cc6aa9df61cb786274815491e8ae2394178e42

    SHA256

    f8b4d89a3c5c80bef88ce2d19fd2f7f80a1c484493eb331d26c8ee381e1db767

    SHA512

    58e31b30fc1400a4c64a6f714a25f026ac221dc8c9f39cc899f4decc3c8541f452791bccf0259cea1a287bdcc0e2dd65cb2e6ba021ee0999360149201f78cd83

  • C:\Windows\Installer\MSI2D48.tmp

    Filesize

    208KB

    MD5

    d82b3fb861129c5d71f0cd2874f97216

    SHA1

    f3fe341d79224126e950d2691d574d147102b18d

    SHA256

    107b32c5b789be9893f24d5bfe22633d25b7a3cae80082ef37b30e056869cc5c

    SHA512

    244b7675e70ab12aa5776f26e30577268573b725d0f145bfc6b848d2bd8f014c9c6eab0fc0e4f0a574ed9ca1d230b2094dd88a2146ef0a6db70dbd815f9a5f5b

  • C:\Windows\Installer\MSI4175.tmp

    Filesize

    208KB

    MD5

    d82b3fb861129c5d71f0cd2874f97216

    SHA1

    f3fe341d79224126e950d2691d574d147102b18d

    SHA256

    107b32c5b789be9893f24d5bfe22633d25b7a3cae80082ef37b30e056869cc5c

    SHA512

    244b7675e70ab12aa5776f26e30577268573b725d0f145bfc6b848d2bd8f014c9c6eab0fc0e4f0a574ed9ca1d230b2094dd88a2146ef0a6db70dbd815f9a5f5b

  • \Users\Admin\AppData\Local\Temp\MW-69a667cb-6384-4195-8d43-87693735eb8f\files\Autoit3.exe

    Filesize

    872KB

    MD5

    c56b5f0201a3b3de53e561fe76912bfd

    SHA1

    2a4062e10a5de813f5688221dbeb3f3ff33eb417

    SHA256

    237d1bca6e056df5bb16a1216a434634109478f882d3b1d58344c801d184f95d

    SHA512

    195b98245bb820085ae9203cdb6d470b749d1f228908093e8606453b027b7d7681ccd7952e30c2f5dd40f8f0b999ccfc60ebb03419b574c08de6816e75710d2c

  • \Users\Admin\AppData\Local\Temp\MW-69a667cb-6384-4195-8d43-87693735eb8f\files\Autoit3.exe

    Filesize

    872KB

    MD5

    c56b5f0201a3b3de53e561fe76912bfd

    SHA1

    2a4062e10a5de813f5688221dbeb3f3ff33eb417

    SHA256

    237d1bca6e056df5bb16a1216a434634109478f882d3b1d58344c801d184f95d

    SHA512

    195b98245bb820085ae9203cdb6d470b749d1f228908093e8606453b027b7d7681ccd7952e30c2f5dd40f8f0b999ccfc60ebb03419b574c08de6816e75710d2c

  • \Users\Admin\AppData\Local\Temp\MW-69a667cb-6384-4195-8d43-87693735eb8f\files\Autoit3.exe

    Filesize

    872KB

    MD5

    c56b5f0201a3b3de53e561fe76912bfd

    SHA1

    2a4062e10a5de813f5688221dbeb3f3ff33eb417

    SHA256

    237d1bca6e056df5bb16a1216a434634109478f882d3b1d58344c801d184f95d

    SHA512

    195b98245bb820085ae9203cdb6d470b749d1f228908093e8606453b027b7d7681ccd7952e30c2f5dd40f8f0b999ccfc60ebb03419b574c08de6816e75710d2c

  • \Users\Admin\AppData\Local\Temp\MW-69a667cb-6384-4195-8d43-87693735eb8f\files\Autoit3.exe

    Filesize

    872KB

    MD5

    c56b5f0201a3b3de53e561fe76912bfd

    SHA1

    2a4062e10a5de813f5688221dbeb3f3ff33eb417

    SHA256

    237d1bca6e056df5bb16a1216a434634109478f882d3b1d58344c801d184f95d

    SHA512

    195b98245bb820085ae9203cdb6d470b749d1f228908093e8606453b027b7d7681ccd7952e30c2f5dd40f8f0b999ccfc60ebb03419b574c08de6816e75710d2c

  • \Windows\Installer\MSI2D48.tmp

    Filesize

    208KB

    MD5

    d82b3fb861129c5d71f0cd2874f97216

    SHA1

    f3fe341d79224126e950d2691d574d147102b18d

    SHA256

    107b32c5b789be9893f24d5bfe22633d25b7a3cae80082ef37b30e056869cc5c

    SHA512

    244b7675e70ab12aa5776f26e30577268573b725d0f145bfc6b848d2bd8f014c9c6eab0fc0e4f0a574ed9ca1d230b2094dd88a2146ef0a6db70dbd815f9a5f5b

  • \Windows\Installer\MSI4175.tmp

    Filesize

    208KB

    MD5

    d82b3fb861129c5d71f0cd2874f97216

    SHA1

    f3fe341d79224126e950d2691d574d147102b18d

    SHA256

    107b32c5b789be9893f24d5bfe22633d25b7a3cae80082ef37b30e056869cc5c

    SHA512

    244b7675e70ab12aa5776f26e30577268573b725d0f145bfc6b848d2bd8f014c9c6eab0fc0e4f0a574ed9ca1d230b2094dd88a2146ef0a6db70dbd815f9a5f5b

  • memory/1624-130-0x0000000002A20000-0x0000000002B15000-memory.dmp

    Filesize

    980KB

  • memory/1624-131-0x0000000003200000-0x00000000033D9000-memory.dmp

    Filesize

    1.8MB

  • memory/1624-129-0x0000000000B00000-0x0000000000F00000-memory.dmp

    Filesize

    4.0MB