d53390e08acb0126eceb6eba27a1d9a0ce74b0441961f1f6ac1191ab61ff94fd

General
Target

d53390e08acb0126eceb6eba27a1d9a0ce74b0441961f1f6ac1191ab61ff94fd.exe

Filesize

3MB

Completed

22-09-2021 13:14

Score
10 /10
MD5

4b4dc6e050a52577e40b23eb0f2f1643

SHA1

adc7f113b6fb190df89c41147a01206ab85411c5

SHA256

d53390e08acb0126eceb6eba27a1d9a0ce74b0441961f1f6ac1191ab61ff94fd

Malware Config
Signatures 8

Filter: none

Defense Evasion
Discovery
Persistence
  • njRAT/Bladabindi

    Description

    Widely used RAT written in .NET.

  • Executes dropped EXE
    chrome .exe

    Reported IOCs

    pidprocess
    380chrome .exe
  • Modifies Windows Firewall

    Tags

    TTPs

    Modify Existing Service
  • Drops startup file
    chrome .exe

    Reported IOCs

    descriptioniocprocess
    File createdC:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\82b3a5c8055c6c9df621b9015591f5e6.exechrome .exe
    File opened for modificationC:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\82b3a5c8055c6c9df621b9015591f5e6.exechrome .exe
  • Adds Run key to start application
    chrome .exe

    TTPs

    Registry Run Keys / Startup FolderModify Registry

    Reported IOCs

    descriptioniocprocess
    Set value (str)\REGISTRY\USER\S-1-5-21-1594587808-2047097707-2163810515-1000\Software\Microsoft\Windows\CurrentVersion\Run\82b3a5c8055c6c9df621b9015591f5e6 = "\"C:\\Users\\Admin\\AppData\\Roaming\\chrome .exe\" .."chrome .exe
    Set value (str)\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\82b3a5c8055c6c9df621b9015591f5e6 = "\"C:\\Users\\Admin\\AppData\\Roaming\\chrome .exe\" .."chrome .exe
  • Enumerates physical storage devices

    Description

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

    TTPs

    System Information Discovery
  • Suspicious use of AdjustPrivilegeToken
    chrome .exe

    Reported IOCs

    descriptionpidprocess
    Token: SeDebugPrivilege380chrome .exe
    Token: 33380chrome .exe
    Token: SeIncBasePriorityPrivilege380chrome .exe
    Token: 33380chrome .exe
    Token: SeIncBasePriorityPrivilege380chrome .exe
    Token: 33380chrome .exe
    Token: SeIncBasePriorityPrivilege380chrome .exe
    Token: 33380chrome .exe
    Token: SeIncBasePriorityPrivilege380chrome .exe
    Token: 33380chrome .exe
    Token: SeIncBasePriorityPrivilege380chrome .exe
    Token: 33380chrome .exe
    Token: SeIncBasePriorityPrivilege380chrome .exe
    Token: 33380chrome .exe
    Token: SeIncBasePriorityPrivilege380chrome .exe
    Token: 33380chrome .exe
    Token: SeIncBasePriorityPrivilege380chrome .exe
    Token: 33380chrome .exe
    Token: SeIncBasePriorityPrivilege380chrome .exe
    Token: 33380chrome .exe
    Token: SeIncBasePriorityPrivilege380chrome .exe
    Token: 33380chrome .exe
    Token: SeIncBasePriorityPrivilege380chrome .exe
    Token: 33380chrome .exe
    Token: SeIncBasePriorityPrivilege380chrome .exe
    Token: 33380chrome .exe
    Token: SeIncBasePriorityPrivilege380chrome .exe
    Token: 33380chrome .exe
    Token: SeIncBasePriorityPrivilege380chrome .exe
    Token: 33380chrome .exe
    Token: SeIncBasePriorityPrivilege380chrome .exe
  • Suspicious use of WriteProcessMemory
    d53390e08acb0126eceb6eba27a1d9a0ce74b0441961f1f6ac1191ab61ff94fd.exechrome .exe

    Reported IOCs

    descriptionpidprocesstarget process
    PID 740 wrote to memory of 380740d53390e08acb0126eceb6eba27a1d9a0ce74b0441961f1f6ac1191ab61ff94fd.exechrome .exe
    PID 740 wrote to memory of 380740d53390e08acb0126eceb6eba27a1d9a0ce74b0441961f1f6ac1191ab61ff94fd.exechrome .exe
    PID 740 wrote to memory of 380740d53390e08acb0126eceb6eba27a1d9a0ce74b0441961f1f6ac1191ab61ff94fd.exechrome .exe
    PID 380 wrote to memory of 1280380chrome .exenetsh.exe
    PID 380 wrote to memory of 1280380chrome .exenetsh.exe
    PID 380 wrote to memory of 1280380chrome .exenetsh.exe
Processes 3
  • C:\Users\Admin\AppData\Local\Temp\d53390e08acb0126eceb6eba27a1d9a0ce74b0441961f1f6ac1191ab61ff94fd.exe
    "C:\Users\Admin\AppData\Local\Temp\d53390e08acb0126eceb6eba27a1d9a0ce74b0441961f1f6ac1191ab61ff94fd.exe"
    Suspicious use of WriteProcessMemory
    PID:740
    • C:\Users\Admin\AppData\Roaming\chrome .exe
      "C:\Users\Admin\AppData\Roaming\chrome .exe"
      Executes dropped EXE
      Drops startup file
      Adds Run key to start application
      Suspicious use of AdjustPrivilegeToken
      Suspicious use of WriteProcessMemory
      PID:380
      • C:\Windows\SysWOW64\netsh.exe
        netsh firewall add allowedprogram "C:\Users\Admin\AppData\Roaming\chrome .exe" "chrome .exe" ENABLE
        PID:1280
Network
MITRE ATT&CK Matrix
Collection
    Command and Control
      Credential Access
        Defense Evasion
        Execution
          Exfiltration
            Impact
              Initial Access
                Lateral Movement
                  Privilege Escalation
                    Replay Monitor
                    00:00 00:00
                    Downloads
                    • C:\Users\Admin\AppData\Roaming\chrome .exe

                      MD5

                      4b4dc6e050a52577e40b23eb0f2f1643

                      SHA1

                      adc7f113b6fb190df89c41147a01206ab85411c5

                      SHA256

                      d53390e08acb0126eceb6eba27a1d9a0ce74b0441961f1f6ac1191ab61ff94fd

                      SHA512

                      3e9e205d10ea3fab1d436cccc157627103e41ff857da7ff733e3cf95cdae9f2e149f8d3b9817c4035edf9bc5de4d62ec6744d7d2c67321f28ef18d5b6ec77ca0

                    • C:\Users\Admin\AppData\Roaming\chrome .exe

                      MD5

                      4b4dc6e050a52577e40b23eb0f2f1643

                      SHA1

                      adc7f113b6fb190df89c41147a01206ab85411c5

                      SHA256

                      d53390e08acb0126eceb6eba27a1d9a0ce74b0441961f1f6ac1191ab61ff94fd

                      SHA512

                      3e9e205d10ea3fab1d436cccc157627103e41ff857da7ff733e3cf95cdae9f2e149f8d3b9817c4035edf9bc5de4d62ec6744d7d2c67321f28ef18d5b6ec77ca0

                    • memory/380-120-0x00000000035A1000-0x00000000035A2000-memory.dmp

                    • memory/380-115-0x0000000000000000-mapping.dmp

                    • memory/380-118-0x00000000035A0000-0x00000000035A1000-memory.dmp

                    • memory/740-114-0x0000000002F70000-0x0000000002F71000-memory.dmp

                    • memory/1280-119-0x0000000000000000-mapping.dmp