Analysis

  • max time kernel
    120s
  • max time network
    127s
  • platform
    windows7_x64
  • resource
    win7-20241010-en
  • resource tags

    arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-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 15 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 19 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 21 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:1232
    • 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:1996
  • 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:2536
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding 1C0546BAB281714E431757DE0FBB5EFC
      2⤵
      • Loads dropped DLL
      • Blocklisted process makes network request
      • System Location Discovery: System Language Discovery
      PID:2296
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding A306E9C94C5217883499C26E9F43D022 M Global\MSI0000
      2⤵
      • Loads dropped DLL
      • Drops file in Windows directory
      • System Location Discovery: System Language Discovery
      PID:968

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Config.Msi\f779ca1.rbs

    Filesize

    99KB

    MD5

    f5ab7aaf6b2b97e8fb50b57ef5493425

    SHA1

    ff01d6366912d599ea14279136fddc0125b4bbe1

    SHA256

    e742055f58b998110e5dd16d9bf9fb41ece084e09000c1f6ebc615bc0a40880a

    SHA512

    f389084751ae54aef57e9ea12ec8506017c207fb685e7e268dafbab359eb45322947d4f07e02487d39bf779a75a4df96d9d47a75565eb162697fc74cf7fa9d25

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

    Filesize

    69B

    MD5

    e29f7a880c84850aa98c1e72f2804601

    SHA1

    4930f4c5a076917d368ed150c36651432d8593e2

    SHA256

    f67c350e851157207865a30d39d9ff40ab0f07f425db71c805542bbd25ba03fa

    SHA512

    7bf9c8b4f937d37cd1be2434804ad56356ee0368fe411617167f02f61c7539c6bf3d99658213c81007bb1c026c783720733d6af6d7b02cfad2b5e03274032cc2

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

    Filesize

    84B

    MD5

    8dfd3b687ff9b325715f2aca66414db3

    SHA1

    92e494367207e65cf833c29ebf713fb6b22bf590

    SHA256

    9afb63342f1306215ee619e07a81787f3fa7e976ebdbb5043c0344ee332751e9

    SHA512

    53c8cb5432b1851e604b939c490c47c4556a4bd69048957ca5907ed8b51851b93222836485e2d37e295d81a4c9aec819b0352eb5146338e757fb9988a0033786

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

    Filesize

    84B

    MD5

    68c7a5b701bf194b08e0df49a3379d76

    SHA1

    dc6d0fc79c3441b2f9f9982ed11c1cbafcebfa0f

    SHA256

    638791461bc2a9857d467683677fff275b9dc2cb73247f963877992ef569b406

    SHA512

    0f08cb84f8a52639e97c52d870af893088561d12b81ad4d5bc6e3264f7029a28f3051559c0063b8eb063943d19370fd23c06061afee47beadf239f8b9a4e6b33

  • C:\Users\Admin\AppData\Local\Temp\AdvinstAnalytics\Error file remover\1.0.0.0\{3CFEFCD3-DFDD-481F-AE0A-E201682ADEF4}.session

    Filesize

    1KB

    MD5

    fecf27a5bbf0da7817c86e55aa264f21

    SHA1

    65a8e83ee19d1f1725d276336deeb2241960bb15

    SHA256

    ac618fb9a7780b1cf5fdaf311f4970065c6bcc0a871b3836dbde2fbd902ff3a9

    SHA512

    74cc4577fb408f041b80825b54c45fa7928a33772857dc7c549961349a8cb58bf8d16288f88f3d4eb2f91e19afb965621b440e40c36b3fc9f02d08071a8b4a51

  • C:\Users\Admin\AppData\Local\Temp\AdvinstAnalytics\Error file remover\1.0.0.0\{3CFEFCD3-DFDD-481F-AE0A-E201682ADEF4}.session

    Filesize

    2KB

    MD5

    1e0290dc4c165cbdf17903f3e8df13f8

    SHA1

    1814868b8fe1af03a3aba700cf769b1e633adfdd

    SHA256

    dc132376ecbf3438dc25d79fbc3d94f67037618b0ea2d120c87eaa3f928ae1af

    SHA512

    a3242e8fad1f9ed082bed3d8b5f37cccedb98b79f857443a419030d39f20f7a5dbc8e0d9a7d0167e1c3dfe111ab8c309e42ffcdd51d13c2496e7becb11f09948

  • C:\Users\Admin\AppData\Local\Temp\AdvinstAnalytics\Error file remover\1.0.0.0\{3CFEFCD3-DFDD-481F-AE0A-E201682ADEF4}.session

    Filesize

    3KB

    MD5

    b75376f0e4fa057eba0df455331ae0da

    SHA1

    04d34f68dfcef51322abd13acb2ae8b0a028bb7b

    SHA256

    066d7226bd174f3521907d8ebdeda2b916062c41f94ee90b8dbb9fd09bef11b9

    SHA512

    5fd30cc3bdd2f4f16d16e3d0347b8bd1ddefbb420e27b87e148f47e2b12b0a8654857acd43eac28e0346444ef67450eea71997b314685cce3ad334f66e87ae8d

  • C:\Users\Admin\AppData\Local\Temp\AdvinstAnalytics\Error file remover\1.0.0.0\{3CFEFCD3-DFDD-481F-AE0A-E201682ADEF4}.session

    Filesize

    4KB

    MD5

    a55a3f4459e11c5e46275f03ba0ef4fb

    SHA1

    30ea186a531bf472eae03f633e9f8f57914c7b06

    SHA256

    33c32bee5584b80f64b52496e34ebaa867c22ee06cc286eaf09b32c56a88383f

    SHA512

    ab605500201adb4e233944f9a36b47cc215335965ee7f01482eb27ec774d57c6c173f42b0a8a99016b5938d7b025dcd28876ecb6ea83a32d6b6912aae24b3396

  • 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:\Windows\Installer\MSIAEB0.tmp

    Filesize

    312KB

    MD5

    aa82345a8f360804ea1d8d935f0377aa

    SHA1

    c09cf3b1666d9192fa524c801bb2e3542c0840e2

    SHA256

    9c155d4214cebda186647c035ada552963dcac8f88a6b38a23ea34f9ecd1d437

    SHA512

    c051a381d87ba933ea7929c899fb01af2207cb2462dcb2b55c28cff65596b27bdb05a48207624eeea40fddb85003133ad7af09ca93cfb2426c155daea5a9a6db

  • \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

  • \Windows\Installer\MSI9DA6.tmp

    Filesize

    180KB

    MD5

    d552dd4108b5665d306b4a8bd6083dde

    SHA1

    dae55ccba7adb6690b27fa9623eeeed7a57f8da1

    SHA256

    a0367875b68b1699d2647a748278ebce64d5be633598580977aa126a81cf57c5

    SHA512

    e5545a97014b5952e15bb321135f65c0e24414f8dd606fe454fd2d048d3f769b9318df7cfb2a6bf932eb2bf6d79811b93cb2008115deb0f0fa9db07f32a70969

  • \Windows\Installer\MSI9F2E.tmp

    Filesize

    88KB

    MD5

    4083cb0f45a747d8e8ab0d3e060616f2

    SHA1

    dcec8efa7a15fa432af2ea0445c4b346fef2a4d6

    SHA256

    252b7423b01ff81aea6fe7b40de91abf49f515e9c0c7b95aa982756889f8ac1a

    SHA512

    26f8949cad02334f9942fda8509579303b81b11bc052a962c5c31a7c6c54a1c96957f30ee241c2206d496d2c519d750d7f6a12b52afdb282fa706f9fee385133

  • \Windows\Installer\MSIAD18.tmp

    Filesize

    96KB

    MD5

    3cab78d0dc84883be2335788d387601e

    SHA1

    14745df9595f190008c7e5c190660361f998d824

    SHA256

    604e79fe970c5ed044517a9a35e4690ea6f7d959d21173ebef45cdd3d3a22bdd

    SHA512

    df6b49f2b5cddebd7e23e81b0f89e4883fc12d95735a9b3f84d2f402f4996c54b5fdea8adb9eaa98e8c973b089656d18d6b322bd71cb42d7807f7fa8a7348820

  • \Windows\Installer\MSIAE22.tmp

    Filesize

    128KB

    MD5

    7e6b88f7bb59ec4573711255f60656b5

    SHA1

    5e7a159825a2d2cb263a161e247e9db93454d4f6

    SHA256

    59ff5bc12b155cc2e666bd8bc34195c3750eb742542374fc5e53fb22d11e862f

    SHA512

    294a379c99403f928d476e04668717cdabc7dc3e33bcf6bcad5c3d93d4268971811ff7303aa5b4b2ed2b59d59c8eba350a9a30888d4b5b3064708521ac21439c