Analysis

  • max time kernel
    123s
  • max time network
    134s
  • platform
    windows7_x64
  • resource
    win7-20221111-en
  • resource tags

    arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
  • submitted
    10-01-2023 02:13

General

  • Target

    e4278fb27ceec068b287b8c829d692c4b51618d42230a0839fbfee7b5729e8dd.exe

  • Size

    1.2MB

  • MD5

    6e3cb345f39387fad03014968b23dc8d

  • SHA1

    f6a222ca3c171911c4b92eb1c0ceee20022841cf

  • SHA256

    e4278fb27ceec068b287b8c829d692c4b51618d42230a0839fbfee7b5729e8dd

  • SHA512

    f13dfd521c6891920df413b504f44b817608a0af6ea961b80fc4a452383ae3b9e45bf1658c1d48f52ba4763836c704a82a983e0c7489c02731b881b72f922635

  • SSDEEP

    24576:sB05WtKffA1F4Bv0h01xxPTa7Wk8bxVhwtDNagZYalPxe3jtD/VdMj:sB05rY+v0hwTa6k8KdAgZK3j5/Vm

Score
8/10
upx

Malware Config

Signatures

  • Downloads MZ/PE file
  • Executes dropped EXE 1 IoCs
  • UPX packed file 6 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • Loads dropped DLL 4 IoCs
  • Enumerates connected drives 3 TTPs 1 IoCs

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

  • Drops file in Program Files directory 1 IoCs
  • Modifies system certificate store 2 TTPs 9 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of WriteProcessMemory 14 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\e4278fb27ceec068b287b8c829d692c4b51618d42230a0839fbfee7b5729e8dd.exe
    "C:\Users\Admin\AppData\Local\Temp\e4278fb27ceec068b287b8c829d692c4b51618d42230a0839fbfee7b5729e8dd.exe"
    1⤵
    • Loads dropped DLL
    • Enumerates connected drives
    • Drops file in Program Files directory
    • Modifies system certificate store
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: GetForegroundWindowSpam
    • Suspicious use of WriteProcessMemory
    PID:828
    • C:\Users\Admin\AppData\Local\Temp\e4278fb27ceec068b287b8c829d692c4b51618d42230a0839fbfee7b5729e8dd.exe
      "C:\Users\Admin\AppData\Local\Temp\e4278fb27ceec068b287b8c829d692c4b51618d42230a0839fbfee7b5729e8dd.exe" --crash-reporter-parent-id=828
      2⤵
      • Loads dropped DLL
      PID:2012
    • C:\Users\Admin\AppData\Local\Temp\Opera Installer\e4278fb27ceec068b287b8c829d692c4b51618d42230a0839fbfee7b5729e8dd.exe
      "C:\Users\Admin\AppData\Local\Temp\Opera Installer\e4278fb27ceec068b287b8c829d692c4b51618d42230a0839fbfee7b5729e8dd.exe" --version
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      PID:1444

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\Opera Installer\e4278fb27ceec068b287b8c829d692c4b51618d42230a0839fbfee7b5729e8dd.exe

    Filesize

    1.2MB

    MD5

    6e3cb345f39387fad03014968b23dc8d

    SHA1

    f6a222ca3c171911c4b92eb1c0ceee20022841cf

    SHA256

    e4278fb27ceec068b287b8c829d692c4b51618d42230a0839fbfee7b5729e8dd

    SHA512

    f13dfd521c6891920df413b504f44b817608a0af6ea961b80fc4a452383ae3b9e45bf1658c1d48f52ba4763836c704a82a983e0c7489c02731b881b72f922635

  • \Users\Admin\AppData\Local\Temp\Opera Installer\e4278fb27ceec068b287b8c829d692c4b51618d42230a0839fbfee7b5729e8dd.exe

    Filesize

    1.2MB

    MD5

    6e3cb345f39387fad03014968b23dc8d

    SHA1

    f6a222ca3c171911c4b92eb1c0ceee20022841cf

    SHA256

    e4278fb27ceec068b287b8c829d692c4b51618d42230a0839fbfee7b5729e8dd

    SHA512

    f13dfd521c6891920df413b504f44b817608a0af6ea961b80fc4a452383ae3b9e45bf1658c1d48f52ba4763836c704a82a983e0c7489c02731b881b72f922635

  • \Users\Admin\AppData\Local\Temp\Opera_installer_2023110141994.dll

    Filesize

    1.6MB

    MD5

    1323f211a6d8901c0f62c2bcd95068a1

    SHA1

    837c9d21dac46046547cc9fd0e0a5a379e337264

    SHA256

    e3e0a271f75b70ae6460024d0f613f9975e40c987eb16dc1b744058b97131029

    SHA512

    37d933304aacb7c0d0b4430f6595324b4bca388e65487dca1f722e6f539034b072a4c2f3825f5db9df8077c30fcfe79364af37184b81bbde288ea422dc509d3d

  • \Users\Admin\AppData\Local\Temp\Opera_installer_2023110142314.dll

    Filesize

    1.6MB

    MD5

    1323f211a6d8901c0f62c2bcd95068a1

    SHA1

    837c9d21dac46046547cc9fd0e0a5a379e337264

    SHA256

    e3e0a271f75b70ae6460024d0f613f9975e40c987eb16dc1b744058b97131029

    SHA512

    37d933304aacb7c0d0b4430f6595324b4bca388e65487dca1f722e6f539034b072a4c2f3825f5db9df8077c30fcfe79364af37184b81bbde288ea422dc509d3d

  • \Users\Admin\AppData\Local\Temp\Opera_installer_2023110142766.dll

    Filesize

    1.6MB

    MD5

    1323f211a6d8901c0f62c2bcd95068a1

    SHA1

    837c9d21dac46046547cc9fd0e0a5a379e337264

    SHA256

    e3e0a271f75b70ae6460024d0f613f9975e40c987eb16dc1b744058b97131029

    SHA512

    37d933304aacb7c0d0b4430f6595324b4bca388e65487dca1f722e6f539034b072a4c2f3825f5db9df8077c30fcfe79364af37184b81bbde288ea422dc509d3d

  • memory/828-55-0x0000000075C41000-0x0000000075C43000-memory.dmp

    Filesize

    8KB

  • memory/828-65-0x00000000000F0000-0x0000000000327000-memory.dmp

    Filesize

    2.2MB

  • memory/828-68-0x0000000002B30000-0x0000000002D67000-memory.dmp

    Filesize

    2.2MB

  • memory/828-66-0x00000000022C0000-0x00000000024F7000-memory.dmp

    Filesize

    2.2MB

  • memory/1444-60-0x0000000000000000-mapping.dmp

  • memory/1444-64-0x0000000001050000-0x0000000001287000-memory.dmp

    Filesize

    2.2MB

  • memory/2012-56-0x0000000000000000-mapping.dmp

  • memory/2012-67-0x00000000000F0000-0x0000000000327000-memory.dmp

    Filesize

    2.2MB