Analysis

  • max time kernel
    118s
  • max time network
    118s
  • platform
    windows7_x64
  • resource
    win7-en-20211104
  • submitted
    22-11-2021 18:51

General

  • Target

    e519d0a4bab2d08e14a5c175d431ce3e.msi

  • Size

    6.1MB

  • MD5

    e519d0a4bab2d08e14a5c175d431ce3e

  • SHA1

    56f8327c426952cb3f85de5927274974c9dc89b8

  • SHA256

    cb3d08dd3044e25627bc2f3e80575495f40fc11442e35a708f3f1eb28b7d82e1

  • SHA512

    43372e37b07d4586f951c7911df635f375f778f9182583cdaafe8bac38e99d42da32534c445c0f2febdda0153682f83956dbcd573d942127aca8ae162ab4f350

Score
7/10

Malware Config

Signatures

  • Loads dropped DLL 4 IoCs
  • Enumerates connected drives 3 TTPs 48 IoCs

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

  • Drops file in System32 directory 1 IoCs
  • Drops file in Windows directory 13 IoCs
  • Modifies data under HKEY_USERS 43 IoCs
  • Suspicious behavior: EnumeratesProcesses 3 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\e519d0a4bab2d08e14a5c175d431ce3e.msi
    1⤵
    • Enumerates connected drives
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of FindShellTrayWindow
    PID:660
  • 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:1400
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding DCAA3CF433B6B7D7A7BAC1522E29B6DC
      2⤵
      • Loads dropped DLL
      • Suspicious use of WriteProcessMemory
      PID:2044
      • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
        -NoProfile -Noninteractive -ExecutionPolicy Bypass -File "C:\Users\Admin\AppData\Local\Temp\pss4157.ps1" -propFile "C:\Users\Admin\AppData\Local\Temp\msi4144.txt" -scriptFile "C:\Users\Admin\AppData\Local\Temp\scr4145.ps1" -scriptArgsFile "C:\Users\Admin\AppData\Local\Temp\scr4156.txt" -propSep " :<->: " -testPrefix "_testValue."
        3⤵
        • Drops file in System32 directory
        • Suspicious behavior: EnumeratesProcesses
        PID:1892
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:596
  • C:\Windows\system32\DrvInst.exe
    DrvInst.exe "1" "200" "STORAGE\VolumeSnapshot\HarddiskVolumeSnapshot13" "" "" "66d15495b" "0000000000000000" "0000000000000554" "00000000000003D4"
    1⤵
    • Drops file in Windows directory
    • Modifies data under HKEY_USERS
    • Suspicious use of AdjustPrivilegeToken
    PID:1632

Network

MITRE ATT&CK Matrix ATT&CK v6

Discovery

Query Registry

1
T1012

Peripheral Device Discovery

1
T1120

System Information Discovery

1
T1082

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\pss4157.ps1
    MD5

    0c95bc11cfca37f84a19de0529377e13

    SHA1

    41f409dbbab04ef35c4f6489af6f85fceb9c501a

    SHA256

    88748aae11029228d84aef0855f4bc084dfd70450db1f7029746d8bc85182f93

    SHA512

    8a52f3c40440e3129a367609ee4b6e9e98aa62edec48592be03bad1aadcd389e2e58e095f4ea3d6f9cb458aa7101fcb5afdff66658885bfa0634c74c086db568

  • C:\Users\Admin\AppData\Local\Temp\scr4145.ps1
    MD5

    760083834ce1d1b1ffa7d4134702ef37

    SHA1

    4acdc74fc95959fccd939f4b76ed34361b378daf

    SHA256

    82d84adfabc02fedb06911b370215b382bb6f21998f65971ffd454b1c9a2bac9

    SHA512

    c6c65ae003984538ac166a91d51ec4871781dd36d84d0d360880950c72504d2a8bfd80a339d1bd898f4be4baac11b3029333195da8cd6890a087126e1104e9ff

  • C:\Users\Admin\AppData\Local\Temp\scr4156.txt
    MD5

    78b10d5d64c74e8450185f1cc409c2b4

    SHA1

    92e2d22ffa1b3dc1df05462db670a182b2bae3ab

    SHA256

    1e5b986e5d39b1e0a15d6721d75d5174d164ae687a5f541036333e033963e983

    SHA512

    544d687f50fb38c0c7908de08149ede99dbe3250ddd84282c20b1af1496ca072d3266221b7220f407938a70035819b8e5451b3a30e2d7ce3ae0aaa152552184a

  • C:\Windows\Installer\MSI35DF.tmp
    MD5

    85b69b55118ffc36f03b4db94f4ddc3d

    SHA1

    f7239136ce15776f76e6567a7a361ed8272a1096

    SHA256

    e9e32cb36c162ef4527c725adf76857439c26d1a5653a484ce4547b36471bb8e

    SHA512

    bff8496048d727830a3e73dea7bf0819e443bfea3b35256af04222434694f98dcfcdfec837c5dde6f6ae2c2c0c51372d15139e8b172888764d3a951d98c4dfce

  • C:\Windows\Installer\MSI388F.tmp
    MD5

    85b69b55118ffc36f03b4db94f4ddc3d

    SHA1

    f7239136ce15776f76e6567a7a361ed8272a1096

    SHA256

    e9e32cb36c162ef4527c725adf76857439c26d1a5653a484ce4547b36471bb8e

    SHA512

    bff8496048d727830a3e73dea7bf0819e443bfea3b35256af04222434694f98dcfcdfec837c5dde6f6ae2c2c0c51372d15139e8b172888764d3a951d98c4dfce

  • C:\Windows\Installer\MSI39A8.tmp
    MD5

    85b69b55118ffc36f03b4db94f4ddc3d

    SHA1

    f7239136ce15776f76e6567a7a361ed8272a1096

    SHA256

    e9e32cb36c162ef4527c725adf76857439c26d1a5653a484ce4547b36471bb8e

    SHA512

    bff8496048d727830a3e73dea7bf0819e443bfea3b35256af04222434694f98dcfcdfec837c5dde6f6ae2c2c0c51372d15139e8b172888764d3a951d98c4dfce

  • C:\Windows\Installer\MSI40FC.tmp
    MD5

    eeacf76535bbb010b9407d94288933de

    SHA1

    d30e40f531bb1074fe78595ef647b56b7c6609e4

    SHA256

    322023eee9182800b4160c2b1e739d3e7850cc127da9d2bd77e705ca5f2d2e56

    SHA512

    81f446cd0ec952dc9b28634d3c6ba94942967cae5f5fcc84d336b1d0b4c19933cfe68fc6fe501374d101f5dc6048cd29b5171bb62c1ec56240a5539a07d75e99

  • \Windows\Installer\MSI35DF.tmp
    MD5

    85b69b55118ffc36f03b4db94f4ddc3d

    SHA1

    f7239136ce15776f76e6567a7a361ed8272a1096

    SHA256

    e9e32cb36c162ef4527c725adf76857439c26d1a5653a484ce4547b36471bb8e

    SHA512

    bff8496048d727830a3e73dea7bf0819e443bfea3b35256af04222434694f98dcfcdfec837c5dde6f6ae2c2c0c51372d15139e8b172888764d3a951d98c4dfce

  • \Windows\Installer\MSI388F.tmp
    MD5

    85b69b55118ffc36f03b4db94f4ddc3d

    SHA1

    f7239136ce15776f76e6567a7a361ed8272a1096

    SHA256

    e9e32cb36c162ef4527c725adf76857439c26d1a5653a484ce4547b36471bb8e

    SHA512

    bff8496048d727830a3e73dea7bf0819e443bfea3b35256af04222434694f98dcfcdfec837c5dde6f6ae2c2c0c51372d15139e8b172888764d3a951d98c4dfce

  • \Windows\Installer\MSI39A8.tmp
    MD5

    85b69b55118ffc36f03b4db94f4ddc3d

    SHA1

    f7239136ce15776f76e6567a7a361ed8272a1096

    SHA256

    e9e32cb36c162ef4527c725adf76857439c26d1a5653a484ce4547b36471bb8e

    SHA512

    bff8496048d727830a3e73dea7bf0819e443bfea3b35256af04222434694f98dcfcdfec837c5dde6f6ae2c2c0c51372d15139e8b172888764d3a951d98c4dfce

  • \Windows\Installer\MSI40FC.tmp
    MD5

    eeacf76535bbb010b9407d94288933de

    SHA1

    d30e40f531bb1074fe78595ef647b56b7c6609e4

    SHA256

    322023eee9182800b4160c2b1e739d3e7850cc127da9d2bd77e705ca5f2d2e56

    SHA512

    81f446cd0ec952dc9b28634d3c6ba94942967cae5f5fcc84d336b1d0b4c19933cfe68fc6fe501374d101f5dc6048cd29b5171bb62c1ec56240a5539a07d75e99

  • memory/660-55-0x000007FEFBFB1000-0x000007FEFBFB3000-memory.dmp
    Filesize

    8KB

  • memory/1892-67-0x0000000000000000-mapping.dmp
  • memory/1892-69-0x0000000002310000-0x0000000002F5A000-memory.dmp
    Filesize

    12.3MB

  • memory/1892-70-0x0000000002310000-0x0000000002F5A000-memory.dmp
    Filesize

    12.3MB

  • memory/2044-58-0x0000000076341000-0x0000000076343000-memory.dmp
    Filesize

    8KB

  • memory/2044-57-0x0000000000000000-mapping.dmp