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Analysis

  • max time kernel
    51s
  • max time network
    54s
  • platform
    windows7_x64
  • resource
    win7-20220901-en
  • resource tags

    arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system
  • submitted
    05/10/2022, 13:54

General

  • Target

    Reporte_Estado_De_Pago_Documento-Planilla-relacion_presupuestaria-7625c75b740023c1ba1586.msi

  • Size

    1.6MB

  • MD5

    555ba9ad7a9978eeb4bdefa180cef487

  • SHA1

    86951455adb15ed78537172dbf4b18bd271e32e7

  • SHA256

    3b25269ee1bf950e149d758ce4074f0ddca17282fb933bc44f9a77e6d495dc1b

  • SHA512

    210894f614c2c1c022254ca52656a7fdb4a5617d58200e8ee07b159500aef1b06af1580b5d321c71cf48f48c06363feda05fb4b4f9cdb325643e819f2a37448f

  • SSDEEP

    49152:4wvNitjVqoA5AhxDOjSETeVfb/6LYgqHDDWs:UtMJAvOjSEPYgqHfN

Score
8/10

Malware Config

Signatures

  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 8 IoCs
  • Enumerates connected drives 3 TTPs 48 IoCs

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

  • Looks up external IP address via web service 1 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Drops file in Windows directory 17 IoCs
  • Modifies data under HKEY_USERS 43 IoCs
  • Script User-Agent 2 IoCs

    Uses user-agent string associated with script host/environment.

  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of FindShellTrayWindow 2 IoCs
  • Suspicious use of WriteProcessMemory 11 IoCs

Processes

  • C:\Windows\system32\msiexec.exe
    msiexec.exe /I C:\Users\Admin\AppData\Local\Temp\Reporte_Estado_De_Pago_Documento-Planilla-relacion_presupuestaria-7625c75b740023c1ba1586.msi
    1⤵
    • Enumerates connected drives
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of FindShellTrayWindow
    PID:1900
  • 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:944
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding 03DBF4BBF1A45C32A415CEE91B31006E
      2⤵
      • Loads dropped DLL
      PID:1184
    • C:\ProgramData\rbsn\miu.exe
      "C:\ProgramData\rbsn\miu.exe"
      2⤵
      • Executes dropped EXE
      PID:324
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:1380
  • C:\Windows\system32\DrvInst.exe
    DrvInst.exe "1" "200" "STORAGE\VolumeSnapshot\HarddiskVolumeSnapshot19" "" "" "61530dda3" "0000000000000000" "000000000000059C" "000000000000031C"
    1⤵
    • Drops file in Windows directory
    • Modifies data under HKEY_USERS
    • Suspicious use of AdjustPrivilegeToken
    PID:764

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\ProgramData\rbsn\JSON.ahk

    Filesize

    11KB

    MD5

    b88765b31bb98b5139c128a0bfd410a5

    SHA1

    dfc19d87e98b8ce942ca79ede35dbf1ba7951ef0

    SHA256

    bb85e4530ccd6355b3ef3506548b4f513bea844d1af37a69624c9c455521c70f

    SHA512

    9d4abf332c42f4070ab3d4d38873291b248722cf67d24944fd74f10174e029c49e2b11e2d20bd202f5e2aeb92ae5bd9e151e15a4a7debda4947b86574083634a

  • C:\ProgramData\rbsn\miu.ahk

    Filesize

    3KB

    MD5

    43924e447bbeccc26eb01344e6d5f531

    SHA1

    08da2e8594940662b30146a3ffeadd481f4ff01a

    SHA256

    bd6a84942c788048795d8513bb04a1f1d843e91f0c405f643e241b07787312c2

    SHA512

    a329acc8222b9546c28ff919448cc5f59de1083ff50c921d00b9bf91c0c41b1948610939107ff51099301fce3552eae4dfab6e8320b38c30f9b91e38951a0311

  • C:\ProgramData\rbsn\miu.exe

    Filesize

    889KB

    MD5

    03c469798bf1827d989f09f346ce95f7

    SHA1

    05e491bc1b8fbfbfdca24b565f2464137f30691e

    SHA256

    de87c8713fac002b0b0a0f9b02c4e3ebcccf65282a22f5ab5912a9da00f35c2a

    SHA512

    d95aed75dd7b2470d4e5052b4b494ad9efbb9eee42c63cf0b38f1d0275ff7b1bb8ee4cbc69d1bb219dbbf33ad3b01cea97f87fa8fe69be7f943aa4417a603238

  • C:\Windows\Installer\MSI8D71.tmp

    Filesize

    376KB

    MD5

    e12c5bcc254c953b1a46d1434804f4d2

    SHA1

    99f67acf34af1294f3c6e5eb521c862e1c772397

    SHA256

    5316cfae8b4d28ab7cbc5cab60e27b0c0f5a3210a921a4b0560769c5021c911b

    SHA512

    9a61aa00b651fc616cd09d28f4a6b872889a026c61d818595a82c58fdff187e3ad57916c2b8690d1e7016d73a05435e13a85758917cfb89029b34c4a1685aa0b

  • C:\Windows\Installer\MSI8FC3.tmp

    Filesize

    376KB

    MD5

    e12c5bcc254c953b1a46d1434804f4d2

    SHA1

    99f67acf34af1294f3c6e5eb521c862e1c772397

    SHA256

    5316cfae8b4d28ab7cbc5cab60e27b0c0f5a3210a921a4b0560769c5021c911b

    SHA512

    9a61aa00b651fc616cd09d28f4a6b872889a026c61d818595a82c58fdff187e3ad57916c2b8690d1e7016d73a05435e13a85758917cfb89029b34c4a1685aa0b

  • C:\Windows\Installer\MSI935D.tmp

    Filesize

    376KB

    MD5

    e12c5bcc254c953b1a46d1434804f4d2

    SHA1

    99f67acf34af1294f3c6e5eb521c862e1c772397

    SHA256

    5316cfae8b4d28ab7cbc5cab60e27b0c0f5a3210a921a4b0560769c5021c911b

    SHA512

    9a61aa00b651fc616cd09d28f4a6b872889a026c61d818595a82c58fdff187e3ad57916c2b8690d1e7016d73a05435e13a85758917cfb89029b34c4a1685aa0b

  • C:\Windows\Installer\MSI9B7A.tmp

    Filesize

    663KB

    MD5

    b4dc5e6ce2dded474e55297e3a97f153

    SHA1

    f5bc4ab34b709118d705150c1e6e6139b78dfff2

    SHA256

    08c8ca31a5b892e9c7159361d668a28766d611ec879be073a9157c9ece03cf2f

    SHA512

    47089b00dc0867f4585da8ff073c26cf4be4fd6e16150afe39b8b38fcf0e001ca31fde27b70ddba9794c851ca24450d73a416e38f209a64532f2d8d4ed5915ce

  • C:\Windows\Installer\MSI9CD3.tmp

    Filesize

    663KB

    MD5

    b4dc5e6ce2dded474e55297e3a97f153

    SHA1

    f5bc4ab34b709118d705150c1e6e6139b78dfff2

    SHA256

    08c8ca31a5b892e9c7159361d668a28766d611ec879be073a9157c9ece03cf2f

    SHA512

    47089b00dc0867f4585da8ff073c26cf4be4fd6e16150afe39b8b38fcf0e001ca31fde27b70ddba9794c851ca24450d73a416e38f209a64532f2d8d4ed5915ce

  • C:\Windows\Installer\MSI9D70.tmp

    Filesize

    663KB

    MD5

    b4dc5e6ce2dded474e55297e3a97f153

    SHA1

    f5bc4ab34b709118d705150c1e6e6139b78dfff2

    SHA256

    08c8ca31a5b892e9c7159361d668a28766d611ec879be073a9157c9ece03cf2f

    SHA512

    47089b00dc0867f4585da8ff073c26cf4be4fd6e16150afe39b8b38fcf0e001ca31fde27b70ddba9794c851ca24450d73a416e38f209a64532f2d8d4ed5915ce

  • C:\Windows\Installer\MSIC912.tmp

    Filesize

    663KB

    MD5

    b4dc5e6ce2dded474e55297e3a97f153

    SHA1

    f5bc4ab34b709118d705150c1e6e6139b78dfff2

    SHA256

    08c8ca31a5b892e9c7159361d668a28766d611ec879be073a9157c9ece03cf2f

    SHA512

    47089b00dc0867f4585da8ff073c26cf4be4fd6e16150afe39b8b38fcf0e001ca31fde27b70ddba9794c851ca24450d73a416e38f209a64532f2d8d4ed5915ce

  • C:\Windows\Installer\MSICA99.tmp

    Filesize

    663KB

    MD5

    b4dc5e6ce2dded474e55297e3a97f153

    SHA1

    f5bc4ab34b709118d705150c1e6e6139b78dfff2

    SHA256

    08c8ca31a5b892e9c7159361d668a28766d611ec879be073a9157c9ece03cf2f

    SHA512

    47089b00dc0867f4585da8ff073c26cf4be4fd6e16150afe39b8b38fcf0e001ca31fde27b70ddba9794c851ca24450d73a416e38f209a64532f2d8d4ed5915ce

  • \Windows\Installer\MSI8D71.tmp

    Filesize

    376KB

    MD5

    e12c5bcc254c953b1a46d1434804f4d2

    SHA1

    99f67acf34af1294f3c6e5eb521c862e1c772397

    SHA256

    5316cfae8b4d28ab7cbc5cab60e27b0c0f5a3210a921a4b0560769c5021c911b

    SHA512

    9a61aa00b651fc616cd09d28f4a6b872889a026c61d818595a82c58fdff187e3ad57916c2b8690d1e7016d73a05435e13a85758917cfb89029b34c4a1685aa0b

  • \Windows\Installer\MSI8FC3.tmp

    Filesize

    376KB

    MD5

    e12c5bcc254c953b1a46d1434804f4d2

    SHA1

    99f67acf34af1294f3c6e5eb521c862e1c772397

    SHA256

    5316cfae8b4d28ab7cbc5cab60e27b0c0f5a3210a921a4b0560769c5021c911b

    SHA512

    9a61aa00b651fc616cd09d28f4a6b872889a026c61d818595a82c58fdff187e3ad57916c2b8690d1e7016d73a05435e13a85758917cfb89029b34c4a1685aa0b

  • \Windows\Installer\MSI935D.tmp

    Filesize

    376KB

    MD5

    e12c5bcc254c953b1a46d1434804f4d2

    SHA1

    99f67acf34af1294f3c6e5eb521c862e1c772397

    SHA256

    5316cfae8b4d28ab7cbc5cab60e27b0c0f5a3210a921a4b0560769c5021c911b

    SHA512

    9a61aa00b651fc616cd09d28f4a6b872889a026c61d818595a82c58fdff187e3ad57916c2b8690d1e7016d73a05435e13a85758917cfb89029b34c4a1685aa0b

  • \Windows\Installer\MSI9B7A.tmp

    Filesize

    663KB

    MD5

    b4dc5e6ce2dded474e55297e3a97f153

    SHA1

    f5bc4ab34b709118d705150c1e6e6139b78dfff2

    SHA256

    08c8ca31a5b892e9c7159361d668a28766d611ec879be073a9157c9ece03cf2f

    SHA512

    47089b00dc0867f4585da8ff073c26cf4be4fd6e16150afe39b8b38fcf0e001ca31fde27b70ddba9794c851ca24450d73a416e38f209a64532f2d8d4ed5915ce

  • \Windows\Installer\MSI9CD3.tmp

    Filesize

    663KB

    MD5

    b4dc5e6ce2dded474e55297e3a97f153

    SHA1

    f5bc4ab34b709118d705150c1e6e6139b78dfff2

    SHA256

    08c8ca31a5b892e9c7159361d668a28766d611ec879be073a9157c9ece03cf2f

    SHA512

    47089b00dc0867f4585da8ff073c26cf4be4fd6e16150afe39b8b38fcf0e001ca31fde27b70ddba9794c851ca24450d73a416e38f209a64532f2d8d4ed5915ce

  • \Windows\Installer\MSI9D70.tmp

    Filesize

    663KB

    MD5

    b4dc5e6ce2dded474e55297e3a97f153

    SHA1

    f5bc4ab34b709118d705150c1e6e6139b78dfff2

    SHA256

    08c8ca31a5b892e9c7159361d668a28766d611ec879be073a9157c9ece03cf2f

    SHA512

    47089b00dc0867f4585da8ff073c26cf4be4fd6e16150afe39b8b38fcf0e001ca31fde27b70ddba9794c851ca24450d73a416e38f209a64532f2d8d4ed5915ce

  • \Windows\Installer\MSIC912.tmp

    Filesize

    663KB

    MD5

    b4dc5e6ce2dded474e55297e3a97f153

    SHA1

    f5bc4ab34b709118d705150c1e6e6139b78dfff2

    SHA256

    08c8ca31a5b892e9c7159361d668a28766d611ec879be073a9157c9ece03cf2f

    SHA512

    47089b00dc0867f4585da8ff073c26cf4be4fd6e16150afe39b8b38fcf0e001ca31fde27b70ddba9794c851ca24450d73a416e38f209a64532f2d8d4ed5915ce

  • \Windows\Installer\MSICA99.tmp

    Filesize

    663KB

    MD5

    b4dc5e6ce2dded474e55297e3a97f153

    SHA1

    f5bc4ab34b709118d705150c1e6e6139b78dfff2

    SHA256

    08c8ca31a5b892e9c7159361d668a28766d611ec879be073a9157c9ece03cf2f

    SHA512

    47089b00dc0867f4585da8ff073c26cf4be4fd6e16150afe39b8b38fcf0e001ca31fde27b70ddba9794c851ca24450d73a416e38f209a64532f2d8d4ed5915ce

  • memory/1184-57-0x00000000759F1000-0x00000000759F3000-memory.dmp

    Filesize

    8KB

  • memory/1900-54-0x000007FEFBEE1000-0x000007FEFBEE3000-memory.dmp

    Filesize

    8KB