Resubmissions

27-07-2023 11:12

230727-nbajbsec22 10

27-07-2023 08:08

230727-j1rfxscg7s 10

Analysis

  • max time kernel
    120s
  • max time network
    124s
  • platform
    windows7_x64
  • resource
    win7-20230712-en
  • resource tags

    arch:x64arch:x86image:win7-20230712-enlocale:en-usos:windows7-x64system
  • submitted
    27-07-2023 08:08

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:1712
  • 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:1604
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding 31A7C9ABDFADD415A55E32BA2785C1C0
      2⤵
      • Loads dropped DLL
      • Suspicious use of WriteProcessMemory
      PID:2908
      • C:\Windows\SysWOW64\ICACLS.EXE
        "C:\Windows\system32\ICACLS.EXE" "C:\Users\Admin\AppData\Local\Temp\MW-9f372493-4fce-478d-b848-15812841b6df\." /SETINTEGRITYLEVEL (CI)(OI)HIGH
        3⤵
        • Modifies file permissions
        PID:2200
      • C:\Windows\SysWOW64\EXPAND.EXE
        "C:\Windows\system32\EXPAND.EXE" -R files.cab -F:* files
        3⤵
        • Drops file in Windows directory
        PID:2628
      • C:\Users\Admin\AppData\Local\Temp\MW-9f372493-4fce-478d-b848-15812841b6df\files\Autoit3.exe
        "C:\Users\Admin\AppData\Local\Temp\MW-9f372493-4fce-478d-b848-15812841b6df\files\Autoit3.exe" UGtZgHHT.au3
        3⤵
        • Executes dropped EXE
        PID:2572
      • C:\Windows\SysWOW64\ICACLS.EXE
        "C:\Windows\system32\ICACLS.EXE" "C:\Users\Admin\AppData\Local\Temp\MW-9f372493-4fce-478d-b848-15812841b6df\." /SETINTEGRITYLEVEL (CI)(OI)LOW
        3⤵
        • Modifies file permissions
        PID:1044
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:2104
  • C:\Windows\system32\DrvInst.exe
    DrvInst.exe "1" "200" "STORAGE\VolumeSnapshot\HarddiskVolumeSnapshot19" "" "" "61530dda3" "0000000000000000" "0000000000000328" "00000000000003E0"
    1⤵
    • Drops file in Windows directory
    • Modifies data under HKEY_USERS
    • Suspicious use of AdjustPrivilegeToken
    PID:2932

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\MW-9f372493-4fce-478d-b848-15812841b6df\files.cab

    Filesize

    1.6MB

    MD5

    e7c3b16ed93b760546ae6756b12644da

    SHA1

    99b3b1af70b45b4b815a814f61f9b6e509cd3bb6

    SHA256

    659733a584c52078ac6b568dfb34a089bef2b3835a5ea737d32c1623a468b743

    SHA512

    b6eeaaeeb1f7c8335076075bc8033d5d4744544f3937eeaddcbef5f7ba257a64c20a47f8388c1e8f10c5821da8abe0683be8fd60c3e1a9aea25e4a705e2f8b41

  • C:\Users\Admin\AppData\Local\Temp\MW-9f372493-4fce-478d-b848-15812841b6df\files\Autoit3.exe

    Filesize

    872KB

    MD5

    c56b5f0201a3b3de53e561fe76912bfd

    SHA1

    2a4062e10a5de813f5688221dbeb3f3ff33eb417

    SHA256

    237d1bca6e056df5bb16a1216a434634109478f882d3b1d58344c801d184f95d

    SHA512

    195b98245bb820085ae9203cdb6d470b749d1f228908093e8606453b027b7d7681ccd7952e30c2f5dd40f8f0b999ccfc60ebb03419b574c08de6816e75710d2c

  • C:\Users\Admin\AppData\Local\Temp\MW-9f372493-4fce-478d-b848-15812841b6df\files\Autoit3.exe

    Filesize

    872KB

    MD5

    c56b5f0201a3b3de53e561fe76912bfd

    SHA1

    2a4062e10a5de813f5688221dbeb3f3ff33eb417

    SHA256

    237d1bca6e056df5bb16a1216a434634109478f882d3b1d58344c801d184f95d

    SHA512

    195b98245bb820085ae9203cdb6d470b749d1f228908093e8606453b027b7d7681ccd7952e30c2f5dd40f8f0b999ccfc60ebb03419b574c08de6816e75710d2c

  • C:\Users\Admin\AppData\Local\Temp\MW-9f372493-4fce-478d-b848-15812841b6df\files\UGtZgHHT.au3

    Filesize

    757KB

    MD5

    1b524d03b27b94906c1a87b207e08179

    SHA1

    8fbad6275708a69b764992b05126e053134fb9e9

    SHA256

    1af981d9c5128b3657cdb5506d61563e0d1908b957e5dd6842059d6d3cfdc622

    SHA512

    1e0f2aea5daa40b6cb7df61ba86e0956356ab7b7ecfc9e2934bc85eec8d42d3aeb32858dd0ead24e82ef261a4120f6374263b7af9256eb79a294d51273cc4f6e

  • C:\Users\Admin\AppData\Local\Temp\MW-9f372493-4fce-478d-b848-15812841b6df\msiwrapper.ini

    Filesize

    1KB

    MD5

    49cdb5869348eb49d0a190915b5b965d

    SHA1

    1f2d54202ff373dd94a1622ffcd470f61c37459b

    SHA256

    6c8585d99cd2e7da07a59fdf9c1ab8a1e4f7beec3dd9876a86f45386526c9e5e

    SHA512

    f16ad4fd02f85e48ae6d3349fb85a0b694288d4443455df5f1fa5590df2f2cab69abe4a792350f3a09a3be2a67748030178d481487a6ca557560dd704044f773

  • C:\Users\Admin\AppData\Local\Temp\MW-9f372493-4fce-478d-b848-15812841b6df\msiwrapper.ini

    Filesize

    1KB

    MD5

    f24a1a32edf4a4a3d3f8f58e8924337e

    SHA1

    108c711a37bc1cef82b3b3afa1ca467f31e65c52

    SHA256

    32fa05c07587039f0b3972966dafc4701a60486aa42a0d455fc10b48f396a919

    SHA512

    6aff684ca11a47c8a22a099d4fb2f2c1821d7cddd2ca977685591c6e090a34889716cffc817016e9146399fda5e08f4a8f6a5f53b36111b71c4c0de5d5aee6c7

  • C:\Users\Admin\AppData\Local\Temp\MW-9f372493-4fce-478d-b848-15812841b6df\msiwrapper.ini

    Filesize

    1KB

    MD5

    49cdb5869348eb49d0a190915b5b965d

    SHA1

    1f2d54202ff373dd94a1622ffcd470f61c37459b

    SHA256

    6c8585d99cd2e7da07a59fdf9c1ab8a1e4f7beec3dd9876a86f45386526c9e5e

    SHA512

    f16ad4fd02f85e48ae6d3349fb85a0b694288d4443455df5f1fa5590df2f2cab69abe4a792350f3a09a3be2a67748030178d481487a6ca557560dd704044f773

  • C:\Windows\Installer\MSI41B2.tmp

    Filesize

    208KB

    MD5

    d82b3fb861129c5d71f0cd2874f97216

    SHA1

    f3fe341d79224126e950d2691d574d147102b18d

    SHA256

    107b32c5b789be9893f24d5bfe22633d25b7a3cae80082ef37b30e056869cc5c

    SHA512

    244b7675e70ab12aa5776f26e30577268573b725d0f145bfc6b848d2bd8f014c9c6eab0fc0e4f0a574ed9ca1d230b2094dd88a2146ef0a6db70dbd815f9a5f5b

  • C:\Windows\Installer\MSI50C1.tmp

    Filesize

    208KB

    MD5

    d82b3fb861129c5d71f0cd2874f97216

    SHA1

    f3fe341d79224126e950d2691d574d147102b18d

    SHA256

    107b32c5b789be9893f24d5bfe22633d25b7a3cae80082ef37b30e056869cc5c

    SHA512

    244b7675e70ab12aa5776f26e30577268573b725d0f145bfc6b848d2bd8f014c9c6eab0fc0e4f0a574ed9ca1d230b2094dd88a2146ef0a6db70dbd815f9a5f5b

  • \Users\Admin\AppData\Local\Temp\MW-9f372493-4fce-478d-b848-15812841b6df\files\Autoit3.exe

    Filesize

    872KB

    MD5

    c56b5f0201a3b3de53e561fe76912bfd

    SHA1

    2a4062e10a5de813f5688221dbeb3f3ff33eb417

    SHA256

    237d1bca6e056df5bb16a1216a434634109478f882d3b1d58344c801d184f95d

    SHA512

    195b98245bb820085ae9203cdb6d470b749d1f228908093e8606453b027b7d7681ccd7952e30c2f5dd40f8f0b999ccfc60ebb03419b574c08de6816e75710d2c

  • \Users\Admin\AppData\Local\Temp\MW-9f372493-4fce-478d-b848-15812841b6df\files\Autoit3.exe

    Filesize

    872KB

    MD5

    c56b5f0201a3b3de53e561fe76912bfd

    SHA1

    2a4062e10a5de813f5688221dbeb3f3ff33eb417

    SHA256

    237d1bca6e056df5bb16a1216a434634109478f882d3b1d58344c801d184f95d

    SHA512

    195b98245bb820085ae9203cdb6d470b749d1f228908093e8606453b027b7d7681ccd7952e30c2f5dd40f8f0b999ccfc60ebb03419b574c08de6816e75710d2c

  • \Users\Admin\AppData\Local\Temp\MW-9f372493-4fce-478d-b848-15812841b6df\files\Autoit3.exe

    Filesize

    872KB

    MD5

    c56b5f0201a3b3de53e561fe76912bfd

    SHA1

    2a4062e10a5de813f5688221dbeb3f3ff33eb417

    SHA256

    237d1bca6e056df5bb16a1216a434634109478f882d3b1d58344c801d184f95d

    SHA512

    195b98245bb820085ae9203cdb6d470b749d1f228908093e8606453b027b7d7681ccd7952e30c2f5dd40f8f0b999ccfc60ebb03419b574c08de6816e75710d2c

  • \Users\Admin\AppData\Local\Temp\MW-9f372493-4fce-478d-b848-15812841b6df\files\Autoit3.exe

    Filesize

    872KB

    MD5

    c56b5f0201a3b3de53e561fe76912bfd

    SHA1

    2a4062e10a5de813f5688221dbeb3f3ff33eb417

    SHA256

    237d1bca6e056df5bb16a1216a434634109478f882d3b1d58344c801d184f95d

    SHA512

    195b98245bb820085ae9203cdb6d470b749d1f228908093e8606453b027b7d7681ccd7952e30c2f5dd40f8f0b999ccfc60ebb03419b574c08de6816e75710d2c

  • \Windows\Installer\MSI41B2.tmp

    Filesize

    208KB

    MD5

    d82b3fb861129c5d71f0cd2874f97216

    SHA1

    f3fe341d79224126e950d2691d574d147102b18d

    SHA256

    107b32c5b789be9893f24d5bfe22633d25b7a3cae80082ef37b30e056869cc5c

    SHA512

    244b7675e70ab12aa5776f26e30577268573b725d0f145bfc6b848d2bd8f014c9c6eab0fc0e4f0a574ed9ca1d230b2094dd88a2146ef0a6db70dbd815f9a5f5b

  • \Windows\Installer\MSI50C1.tmp

    Filesize

    208KB

    MD5

    d82b3fb861129c5d71f0cd2874f97216

    SHA1

    f3fe341d79224126e950d2691d574d147102b18d

    SHA256

    107b32c5b789be9893f24d5bfe22633d25b7a3cae80082ef37b30e056869cc5c

    SHA512

    244b7675e70ab12aa5776f26e30577268573b725d0f145bfc6b848d2bd8f014c9c6eab0fc0e4f0a574ed9ca1d230b2094dd88a2146ef0a6db70dbd815f9a5f5b

  • memory/2572-130-0x0000000003280000-0x0000000003459000-memory.dmp

    Filesize

    1.8MB

  • memory/2572-129-0x0000000000D30000-0x0000000001130000-memory.dmp

    Filesize

    4.0MB

  • memory/2572-131-0x0000000002740000-0x0000000002835000-memory.dmp

    Filesize

    980KB