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Analysis

  • max time kernel
    91s
  • max time network
    143s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-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 9 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 16 IoCs
  • Checks SCSI registry key(s) 3 TTPs 5 IoCs

    SCSI information is often read in order to detect sandboxing environments.

  • 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 8 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:5092
  • 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:3236
    • C:\Windows\system32\srtasks.exe
      C:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:2
      2⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:1480
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding DC509841CFEF408A437776E1A60ECAB8
      2⤵
      • Loads dropped DLL
      PID:1544
    • C:\ProgramData\rbsn\miu.exe
      "C:\ProgramData\rbsn\miu.exe"
      2⤵
      • Executes dropped EXE
      PID:4724
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
    • Checks SCSI registry key(s)
    • Suspicious use of AdjustPrivilegeToken
    PID:1924

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\MSIE6FA.tmp

    Filesize

    376KB

    MD5

    e12c5bcc254c953b1a46d1434804f4d2

    SHA1

    99f67acf34af1294f3c6e5eb521c862e1c772397

    SHA256

    5316cfae8b4d28ab7cbc5cab60e27b0c0f5a3210a921a4b0560769c5021c911b

    SHA512

    9a61aa00b651fc616cd09d28f4a6b872889a026c61d818595a82c58fdff187e3ad57916c2b8690d1e7016d73a05435e13a85758917cfb89029b34c4a1685aa0b

  • C:\Windows\Installer\MSIE6FA.tmp

    Filesize

    376KB

    MD5

    e12c5bcc254c953b1a46d1434804f4d2

    SHA1

    99f67acf34af1294f3c6e5eb521c862e1c772397

    SHA256

    5316cfae8b4d28ab7cbc5cab60e27b0c0f5a3210a921a4b0560769c5021c911b

    SHA512

    9a61aa00b651fc616cd09d28f4a6b872889a026c61d818595a82c58fdff187e3ad57916c2b8690d1e7016d73a05435e13a85758917cfb89029b34c4a1685aa0b

  • C:\Windows\Installer\MSIE90E.tmp

    Filesize

    376KB

    MD5

    e12c5bcc254c953b1a46d1434804f4d2

    SHA1

    99f67acf34af1294f3c6e5eb521c862e1c772397

    SHA256

    5316cfae8b4d28ab7cbc5cab60e27b0c0f5a3210a921a4b0560769c5021c911b

    SHA512

    9a61aa00b651fc616cd09d28f4a6b872889a026c61d818595a82c58fdff187e3ad57916c2b8690d1e7016d73a05435e13a85758917cfb89029b34c4a1685aa0b

  • C:\Windows\Installer\MSIE90E.tmp

    Filesize

    376KB

    MD5

    e12c5bcc254c953b1a46d1434804f4d2

    SHA1

    99f67acf34af1294f3c6e5eb521c862e1c772397

    SHA256

    5316cfae8b4d28ab7cbc5cab60e27b0c0f5a3210a921a4b0560769c5021c911b

    SHA512

    9a61aa00b651fc616cd09d28f4a6b872889a026c61d818595a82c58fdff187e3ad57916c2b8690d1e7016d73a05435e13a85758917cfb89029b34c4a1685aa0b

  • C:\Windows\Installer\MSIE93E.tmp

    Filesize

    376KB

    MD5

    e12c5bcc254c953b1a46d1434804f4d2

    SHA1

    99f67acf34af1294f3c6e5eb521c862e1c772397

    SHA256

    5316cfae8b4d28ab7cbc5cab60e27b0c0f5a3210a921a4b0560769c5021c911b

    SHA512

    9a61aa00b651fc616cd09d28f4a6b872889a026c61d818595a82c58fdff187e3ad57916c2b8690d1e7016d73a05435e13a85758917cfb89029b34c4a1685aa0b

  • C:\Windows\Installer\MSIE93E.tmp

    Filesize

    376KB

    MD5

    e12c5bcc254c953b1a46d1434804f4d2

    SHA1

    99f67acf34af1294f3c6e5eb521c862e1c772397

    SHA256

    5316cfae8b4d28ab7cbc5cab60e27b0c0f5a3210a921a4b0560769c5021c911b

    SHA512

    9a61aa00b651fc616cd09d28f4a6b872889a026c61d818595a82c58fdff187e3ad57916c2b8690d1e7016d73a05435e13a85758917cfb89029b34c4a1685aa0b

  • C:\Windows\Installer\MSIE95E.tmp

    Filesize

    376KB

    MD5

    e12c5bcc254c953b1a46d1434804f4d2

    SHA1

    99f67acf34af1294f3c6e5eb521c862e1c772397

    SHA256

    5316cfae8b4d28ab7cbc5cab60e27b0c0f5a3210a921a4b0560769c5021c911b

    SHA512

    9a61aa00b651fc616cd09d28f4a6b872889a026c61d818595a82c58fdff187e3ad57916c2b8690d1e7016d73a05435e13a85758917cfb89029b34c4a1685aa0b

  • C:\Windows\Installer\MSIE95E.tmp

    Filesize

    376KB

    MD5

    e12c5bcc254c953b1a46d1434804f4d2

    SHA1

    99f67acf34af1294f3c6e5eb521c862e1c772397

    SHA256

    5316cfae8b4d28ab7cbc5cab60e27b0c0f5a3210a921a4b0560769c5021c911b

    SHA512

    9a61aa00b651fc616cd09d28f4a6b872889a026c61d818595a82c58fdff187e3ad57916c2b8690d1e7016d73a05435e13a85758917cfb89029b34c4a1685aa0b

  • C:\Windows\Installer\MSIEA3B.tmp

    Filesize

    663KB

    MD5

    b4dc5e6ce2dded474e55297e3a97f153

    SHA1

    f5bc4ab34b709118d705150c1e6e6139b78dfff2

    SHA256

    08c8ca31a5b892e9c7159361d668a28766d611ec879be073a9157c9ece03cf2f

    SHA512

    47089b00dc0867f4585da8ff073c26cf4be4fd6e16150afe39b8b38fcf0e001ca31fde27b70ddba9794c851ca24450d73a416e38f209a64532f2d8d4ed5915ce

  • C:\Windows\Installer\MSIEA3B.tmp

    Filesize

    663KB

    MD5

    b4dc5e6ce2dded474e55297e3a97f153

    SHA1

    f5bc4ab34b709118d705150c1e6e6139b78dfff2

    SHA256

    08c8ca31a5b892e9c7159361d668a28766d611ec879be073a9157c9ece03cf2f

    SHA512

    47089b00dc0867f4585da8ff073c26cf4be4fd6e16150afe39b8b38fcf0e001ca31fde27b70ddba9794c851ca24450d73a416e38f209a64532f2d8d4ed5915ce

  • C:\Windows\Installer\MSIEB45.tmp

    Filesize

    663KB

    MD5

    b4dc5e6ce2dded474e55297e3a97f153

    SHA1

    f5bc4ab34b709118d705150c1e6e6139b78dfff2

    SHA256

    08c8ca31a5b892e9c7159361d668a28766d611ec879be073a9157c9ece03cf2f

    SHA512

    47089b00dc0867f4585da8ff073c26cf4be4fd6e16150afe39b8b38fcf0e001ca31fde27b70ddba9794c851ca24450d73a416e38f209a64532f2d8d4ed5915ce

  • C:\Windows\Installer\MSIEB45.tmp

    Filesize

    663KB

    MD5

    b4dc5e6ce2dded474e55297e3a97f153

    SHA1

    f5bc4ab34b709118d705150c1e6e6139b78dfff2

    SHA256

    08c8ca31a5b892e9c7159361d668a28766d611ec879be073a9157c9ece03cf2f

    SHA512

    47089b00dc0867f4585da8ff073c26cf4be4fd6e16150afe39b8b38fcf0e001ca31fde27b70ddba9794c851ca24450d73a416e38f209a64532f2d8d4ed5915ce

  • C:\Windows\Installer\MSIEBD3.tmp

    Filesize

    663KB

    MD5

    b4dc5e6ce2dded474e55297e3a97f153

    SHA1

    f5bc4ab34b709118d705150c1e6e6139b78dfff2

    SHA256

    08c8ca31a5b892e9c7159361d668a28766d611ec879be073a9157c9ece03cf2f

    SHA512

    47089b00dc0867f4585da8ff073c26cf4be4fd6e16150afe39b8b38fcf0e001ca31fde27b70ddba9794c851ca24450d73a416e38f209a64532f2d8d4ed5915ce

  • C:\Windows\Installer\MSIEBD3.tmp

    Filesize

    663KB

    MD5

    b4dc5e6ce2dded474e55297e3a97f153

    SHA1

    f5bc4ab34b709118d705150c1e6e6139b78dfff2

    SHA256

    08c8ca31a5b892e9c7159361d668a28766d611ec879be073a9157c9ece03cf2f

    SHA512

    47089b00dc0867f4585da8ff073c26cf4be4fd6e16150afe39b8b38fcf0e001ca31fde27b70ddba9794c851ca24450d73a416e38f209a64532f2d8d4ed5915ce

  • C:\Windows\Installer\MSIF20E.tmp

    Filesize

    663KB

    MD5

    b4dc5e6ce2dded474e55297e3a97f153

    SHA1

    f5bc4ab34b709118d705150c1e6e6139b78dfff2

    SHA256

    08c8ca31a5b892e9c7159361d668a28766d611ec879be073a9157c9ece03cf2f

    SHA512

    47089b00dc0867f4585da8ff073c26cf4be4fd6e16150afe39b8b38fcf0e001ca31fde27b70ddba9794c851ca24450d73a416e38f209a64532f2d8d4ed5915ce

  • C:\Windows\Installer\MSIF20E.tmp

    Filesize

    663KB

    MD5

    b4dc5e6ce2dded474e55297e3a97f153

    SHA1

    f5bc4ab34b709118d705150c1e6e6139b78dfff2

    SHA256

    08c8ca31a5b892e9c7159361d668a28766d611ec879be073a9157c9ece03cf2f

    SHA512

    47089b00dc0867f4585da8ff073c26cf4be4fd6e16150afe39b8b38fcf0e001ca31fde27b70ddba9794c851ca24450d73a416e38f209a64532f2d8d4ed5915ce

  • C:\Windows\Installer\MSIF3C4.tmp

    Filesize

    663KB

    MD5

    b4dc5e6ce2dded474e55297e3a97f153

    SHA1

    f5bc4ab34b709118d705150c1e6e6139b78dfff2

    SHA256

    08c8ca31a5b892e9c7159361d668a28766d611ec879be073a9157c9ece03cf2f

    SHA512

    47089b00dc0867f4585da8ff073c26cf4be4fd6e16150afe39b8b38fcf0e001ca31fde27b70ddba9794c851ca24450d73a416e38f209a64532f2d8d4ed5915ce

  • C:\Windows\Installer\MSIF3C4.tmp

    Filesize

    663KB

    MD5

    b4dc5e6ce2dded474e55297e3a97f153

    SHA1

    f5bc4ab34b709118d705150c1e6e6139b78dfff2

    SHA256

    08c8ca31a5b892e9c7159361d668a28766d611ec879be073a9157c9ece03cf2f

    SHA512

    47089b00dc0867f4585da8ff073c26cf4be4fd6e16150afe39b8b38fcf0e001ca31fde27b70ddba9794c851ca24450d73a416e38f209a64532f2d8d4ed5915ce

  • \??\GLOBALROOT\Device\HarddiskVolumeShadowCopy2\System Volume Information\SPP\metadata-2

    Filesize

    23.0MB

    MD5

    855deffc27728ae87c6b5b4b5b2a2dd3

    SHA1

    e5e3473b42f1bd524ce17f300ee24141995a3d5c

    SHA256

    ca6ba957b79275c392af5288fc1ff82a402cf47ff8df105567be26a9b384049a

    SHA512

    cb709acd9ea50af6af113fb35b3525f85b0ad583d91560db0bf4bbaedb3da88b22be10711be08a289493a404609e1115103ce988267f89671b635ac88ecb586e

  • \??\Volume{06969d78-0000-0000-0000-d01200000000}\System Volume Information\SPP\OnlineMetadataCache\{1461d275-0fb2-4a5f-8b7f-cc0a8d128ab8}_OnDiskSnapshotProp

    Filesize

    5KB

    MD5

    961871c0ded5b3a9559744ff29e978a3

    SHA1

    7bfe9c7d4cd7f228a036685eb0aaa475b759540f

    SHA256

    8a93346cd1fb576b60f26f64a97d3ed50fe8ba381e46acd2d489ffe83b1f9bf6

    SHA512

    ea0388f6a849f4a44ab14df816b11f7cd25cf039b89c85e6614c17057f6a7ded46778281691cf0cc32022bd2b5a2a418c83bde3f4bf45bbf476d45cb9ac986fb