Analysis

  • max time kernel
    92s
  • max time network
    138s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    22-11-2024 03:36

General

  • Target

    ErrorFileRemover.exe

  • Size

    2.4MB

  • MD5

    dbfbf254cfb84d991ac3860105d66fc6

  • SHA1

    893110d8c8451565caa591ddfccf92869f96c242

  • SHA256

    68b0e1932f3b4439865be848c2d592d5174dbdbaab8f66104a0e5b28c928ee0c

  • SHA512

    5e9ccdf52ebdb548c3fa22f22dd584e9a603ca1163a622db5707dbcc5d01e4835879dcfd28cb1589cbb25aed00f352f7a0a0962b1f38b68fc7d6693375e7666d

  • SSDEEP

    49152:6kAG2QGTC5xvMdgpdb1KRHGepUu2cGbqPs9+q2HRPTnFVSLE:6kAjQGTCnvMmpYQqPNRPTnF4Y

Score
10/10

Malware Config

Signatures

  • Modifies WinLogon for persistence 2 TTPs 2 IoCs
  • Loads dropped DLL 16 IoCs
  • Blocklisted process makes network request 1 IoCs
  • Enumerates connected drives 3 TTPs 64 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Drops file in Program Files directory 2 IoCs
  • Drops file in Windows directory 21 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 4 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Modifies data under HKEY_USERS 3 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of FindShellTrayWindow 2 IoCs
  • Suspicious use of WriteProcessMemory 9 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\ErrorFileRemover.exe
    "C:\Users\Admin\AppData\Local\Temp\ErrorFileRemover.exe"
    1⤵
    • Loads dropped DLL
    • Enumerates connected drives
    • System Location Discovery: System Language Discovery
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3164
    • C:\Windows\SysWOW64\msiexec.exe
      "C:\Windows\system32\msiexec.exe" /i "C:\Users\Admin\AppData\Roaming\Windows\Error file remover 1.0.0.0\install\0A01606\Error file remover.msi" AI_SETUPEXEPATH=C:\Users\Admin\AppData\Local\Temp\ErrorFileRemover.exe SETUPEXEDIR=C:\Users\Admin\AppData\Local\Temp\ EXE_CMD_LINE="/exenoupdates /exelang 0 /noprereqs "
      2⤵
      • Enumerates connected drives
      • System Location Discovery: System Language Discovery
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of FindShellTrayWindow
      PID:4040
  • C:\Windows\system32\msiexec.exe
    C:\Windows\system32\msiexec.exe /V
    1⤵
    • Modifies WinLogon for persistence
    • Enumerates connected drives
    • Drops file in Program Files directory
    • Drops file in Windows directory
    • Modifies data under HKEY_USERS
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3384
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding C16F3427CDC6EA38E75CC0D770E37E25
      2⤵
      • Loads dropped DLL
      • Blocklisted process makes network request
      • System Location Discovery: System Language Discovery
      PID:4560
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding A18E76BC448C8C7AA40CF92A59828532 E Global\MSI0000
      2⤵
      • Loads dropped DLL
      • Drops file in Windows directory
      • System Location Discovery: System Language Discovery
      PID:444

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Config.Msi\e57bbf0.rbs

    Filesize

    99KB

    MD5

    5e3275ec1639cdad4e8e53bec43c33a0

    SHA1

    8392fd1a965552dcc06f28443a3527abb3f727de

    SHA256

    277ffe00536c911965764b1862b13a35f05a95a2c74265dac6b1d90276168a79

    SHA512

    4d68ab9c83eb720d640956d09772ab9521fd5f5f2de3f9f3cf1d9e517842b4ea6fbd4cc0e527f8e7b791eebc68b51686175a88f4dd0434239fe576ee65b9ff9d

  • C:\Users\Admin\AppData\Local\Temp\AdvinstAnalytics\Error file remover\1.0.0.0\tracking.ini

    Filesize

    84B

    MD5

    6310ff5356335c0b80d22609648e67cd

    SHA1

    47ca24cd44f904bd65f293ac0bc497bc07efb66a

    SHA256

    9bc0a474899aa70d5b5353e9137a0c3e971f2d6f49da1e9d680197e61009a66e

    SHA512

    d22bcd2e39b99ab34acd10361c126af177e9989ec267ec69458f74a913bca9a99b63c291a22af689ab2f8aa261a3458078bd94265fc9abee9ce5b312c2fa4628

  • C:\Users\Admin\AppData\Local\Temp\AdvinstAnalytics\Error file remover\1.0.0.0\tracking.ini

    Filesize

    84B

    MD5

    465ebf48d764cdfc125d36c0717369d6

    SHA1

    f0c4d2fd3ce5b7da8eb8ff46eb050f2bae54bb0b

    SHA256

    c0dbd09aef45b3dfc135370923b4912ca9908fd3ac08941118634ca7f5e47b89

    SHA512

    ff0db29507760737eb60f37109a55845da533ac67204a772329bc6f38d189df80c19a60ab857c838bf264ecaef9afbb9674decd5fdceff6bd8f58e64d7750089

  • C:\Users\Admin\AppData\Local\Temp\AdvinstAnalytics\Error file remover\1.0.0.0\{E324ECA0-649A-46C1-8F15-87C2B2BECB25}.session

    Filesize

    4KB

    MD5

    fa9ad6eac98e08fbf7c1b0ff9e38e150

    SHA1

    def38de93560b085acbf4007da9a5f904f8608ca

    SHA256

    064bcf17bafa525d38dbc95b125cacc27dac6d0f800f7d6758e94be4e8f188dd

    SHA512

    b83fb1601fe411df76404d883c899d7cc226b247b2d06aa7a350decb98b3fe60714c82f80b2aeee61a68127338246433ca5d72762eb0e888bfb2d8400cff2bed

  • C:\Users\Admin\AppData\Roaming\Windows\Error file remover 1.0.0.0\install\0A01606\Error file remover.msi

    Filesize

    1010KB

    MD5

    27bc9540828c59e1ca1997cf04f6c467

    SHA1

    bfa6d1ce9d4df8beba2bedf59f86a698de0215f3

    SHA256

    05c18698c3dc3b2709afd3355ad5b91a60b2121a52e5fcc474e4e47fb8e95e2a

    SHA512

    a3ae822116cddb52d859de7ffc958541bb47c355a835c5129aade9cc0e5fba3ff25387061deb5b55b5694a535f09fe8669485282eb6e7c818cc7092eb3392848

  • C:\Users\Admin\AppData\Roaming\Windows\Error file remover 1.0.0.0\install\0A01606\Windows Logoff Sound.wav

    Filesize

    724KB

    MD5

    bab1293f4cf987216af8051acddaf97f

    SHA1

    00abe5cfb050b4276c3dd2426e883cd9e1cde683

    SHA256

    bc26b1b97eeb45995bbd5f854db19f994cce1bb9ac9fb625eb207302dccdf344

    SHA512

    3b44371756f069be4f70113a09761a855d80e96c23c8cd76d0c19a43e93d1a159af079ba5189b88b5ee2c093099a02b00ea4dc20a498c9c0c2df7dc95e5ddd49

  • C:\Users\Admin\AppData\Roaming\Windows\Error file remover 1.0.0.0\install\0A01606\fatalerror.exe

    Filesize

    24KB

    MD5

    e579c5b3c386262e3dd4150eb2b13898

    SHA1

    5ab7b37956511ea618bf8552abc88f8e652827d3

    SHA256

    e9573a3041e5a45ed8133576d199eb8d12f8922bbe47d194fef9ac166a96b9e2

    SHA512

    9cf947bad87a701f0e0ad970681767e64b7588089cd9064c72bf24ba6ca0a922988f95b141b29a68ae0e0097f03a66d9b25b9d52197ff71f6e369cde0438e0bb

  • C:\Users\Admin\AppData\Roaming\Windows\Error file remover 1.0.0.0\install\decoder.dll

    Filesize

    126KB

    MD5

    3531cf7755b16d38d5e9e3c43280e7d2

    SHA1

    19981b17ae35b6e9a0007551e69d3e50aa1afffe

    SHA256

    76133e832c15aa5cbc49fb3ba09e0b8dd467c307688be2c9e85e79d3bf62c089

    SHA512

    7b053ba2cf92ef2431b98b2a06bd56340dad94de36d11e326a80cd61b9acb378ac644ac407cf970f4ef8333b8d3fb4ff40b18bb41ec5aee49d79a6a2adcf28fd

  • C:\Windows\Installer\MSIBC89.tmp

    Filesize

    88KB

    MD5

    4083cb0f45a747d8e8ab0d3e060616f2

    SHA1

    dcec8efa7a15fa432af2ea0445c4b346fef2a4d6

    SHA256

    252b7423b01ff81aea6fe7b40de91abf49f515e9c0c7b95aa982756889f8ac1a

    SHA512

    26f8949cad02334f9942fda8509579303b81b11bc052a962c5c31a7c6c54a1c96957f30ee241c2206d496d2c519d750d7f6a12b52afdb282fa706f9fee385133

  • C:\Windows\Installer\MSIBCF8.tmp

    Filesize

    180KB

    MD5

    d552dd4108b5665d306b4a8bd6083dde

    SHA1

    dae55ccba7adb6690b27fa9623eeeed7a57f8da1

    SHA256

    a0367875b68b1699d2647a748278ebce64d5be633598580977aa126a81cf57c5

    SHA512

    e5545a97014b5952e15bb321135f65c0e24414f8dd606fe454fd2d048d3f769b9318df7cfb2a6bf932eb2bf6d79811b93cb2008115deb0f0fa9db07f32a70969

  • C:\Windows\Installer\MSIBF9F.tmp

    Filesize

    96KB

    MD5

    3cab78d0dc84883be2335788d387601e

    SHA1

    14745df9595f190008c7e5c190660361f998d824

    SHA256

    604e79fe970c5ed044517a9a35e4690ea6f7d959d21173ebef45cdd3d3a22bdd

    SHA512

    df6b49f2b5cddebd7e23e81b0f89e4883fc12d95735a9b3f84d2f402f4996c54b5fdea8adb9eaa98e8c973b089656d18d6b322bd71cb42d7807f7fa8a7348820

  • C:\Windows\Installer\MSIBFDE.tmp

    Filesize

    128KB

    MD5

    7e6b88f7bb59ec4573711255f60656b5

    SHA1

    5e7a159825a2d2cb263a161e247e9db93454d4f6

    SHA256

    59ff5bc12b155cc2e666bd8bc34195c3750eb742542374fc5e53fb22d11e862f

    SHA512

    294a379c99403f928d476e04668717cdabc7dc3e33bcf6bcad5c3d93d4268971811ff7303aa5b4b2ed2b59d59c8eba350a9a30888d4b5b3064708521ac21439c

  • C:\Windows\Installer\MSIC02D.tmp

    Filesize

    312KB

    MD5

    aa82345a8f360804ea1d8d935f0377aa

    SHA1

    c09cf3b1666d9192fa524c801bb2e3542c0840e2

    SHA256

    9c155d4214cebda186647c035ada552963dcac8f88a6b38a23ea34f9ecd1d437

    SHA512

    c051a381d87ba933ea7929c899fb01af2207cb2462dcb2b55c28cff65596b27bdb05a48207624eeea40fddb85003133ad7af09ca93cfb2426c155daea5a9a6db