ef395c961e8ce30b98b00741b255f1807ee77eb6c95b7b066b42578b792e30a8

General
Target

ef395c961e8ce30b98b00741b255f1807ee77eb6c95b7b066b42578b792e30a8.exe

Filesize

58KB

Completed

24-09-2021 06:19

Score
10/10
MD5

7b8c14f1210289bf0c8507de3376630c

SHA1

b11d1caa3152f51b1a9062b44f2d1b208cf970c3

SHA256

ef395c961e8ce30b98b00741b255f1807ee77eb6c95b7b066b42578b792e30a8

Malware Config
Signatures 9

Filter: none

Defense Evasion
Discovery
Persistence
  • Sakula

    Description

    Sakula is a remote access trojan with various capabilities.

  • Executes dropped EXE
    MediaCenter.exe

    Reported IOCs

    pidprocess
    1648MediaCenter.exe
  • Deletes itself
    cmd.exe

    Reported IOCs

    pidprocess
    1456cmd.exe
  • Loads dropped DLL
    ef395c961e8ce30b98b00741b255f1807ee77eb6c95b7b066b42578b792e30a8.exe

    Reported IOCs

    pidprocess
    1076ef395c961e8ce30b98b00741b255f1807ee77eb6c95b7b066b42578b792e30a8.exe
    1076ef395c961e8ce30b98b00741b255f1807ee77eb6c95b7b066b42578b792e30a8.exe
  • Adds Run key to start application
    ef395c961e8ce30b98b00741b255f1807ee77eb6c95b7b066b42578b792e30a8.exe

    TTPs

    Registry Run Keys / Startup FolderModify Registry

    Reported IOCs

    descriptioniocprocess
    Set value (str)\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\MicroMedia = "C:\\Users\\Admin\\AppData\\Local\\Temp\\MicroMedia\\MediaCenter.exe"ef395c961e8ce30b98b00741b255f1807ee77eb6c95b7b066b42578b792e30a8.exe
  • Enumerates physical storage devices

    Description

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

    TTPs

    System Information Discovery
  • Runs ping.exe
    PING.EXE

    TTPs

    Remote System Discovery

    Reported IOCs

    pidprocess
    1372PING.EXE
  • Suspicious use of AdjustPrivilegeToken
    ef395c961e8ce30b98b00741b255f1807ee77eb6c95b7b066b42578b792e30a8.exe

    Reported IOCs

    descriptionpidprocess
    Token: SeIncBasePriorityPrivilege1076ef395c961e8ce30b98b00741b255f1807ee77eb6c95b7b066b42578b792e30a8.exe
  • Suspicious use of WriteProcessMemory
    ef395c961e8ce30b98b00741b255f1807ee77eb6c95b7b066b42578b792e30a8.execmd.exe

    Reported IOCs

    descriptionpidprocesstarget process
    PID 1076 wrote to memory of 16481076ef395c961e8ce30b98b00741b255f1807ee77eb6c95b7b066b42578b792e30a8.exeMediaCenter.exe
    PID 1076 wrote to memory of 16481076ef395c961e8ce30b98b00741b255f1807ee77eb6c95b7b066b42578b792e30a8.exeMediaCenter.exe
    PID 1076 wrote to memory of 16481076ef395c961e8ce30b98b00741b255f1807ee77eb6c95b7b066b42578b792e30a8.exeMediaCenter.exe
    PID 1076 wrote to memory of 16481076ef395c961e8ce30b98b00741b255f1807ee77eb6c95b7b066b42578b792e30a8.exeMediaCenter.exe
    PID 1076 wrote to memory of 14561076ef395c961e8ce30b98b00741b255f1807ee77eb6c95b7b066b42578b792e30a8.execmd.exe
    PID 1076 wrote to memory of 14561076ef395c961e8ce30b98b00741b255f1807ee77eb6c95b7b066b42578b792e30a8.execmd.exe
    PID 1076 wrote to memory of 14561076ef395c961e8ce30b98b00741b255f1807ee77eb6c95b7b066b42578b792e30a8.execmd.exe
    PID 1076 wrote to memory of 14561076ef395c961e8ce30b98b00741b255f1807ee77eb6c95b7b066b42578b792e30a8.execmd.exe
    PID 1456 wrote to memory of 13721456cmd.exePING.EXE
    PID 1456 wrote to memory of 13721456cmd.exePING.EXE
    PID 1456 wrote to memory of 13721456cmd.exePING.EXE
    PID 1456 wrote to memory of 13721456cmd.exePING.EXE
Processes 4
  • C:\Users\Admin\AppData\Local\Temp\ef395c961e8ce30b98b00741b255f1807ee77eb6c95b7b066b42578b792e30a8.exe
    "C:\Users\Admin\AppData\Local\Temp\ef395c961e8ce30b98b00741b255f1807ee77eb6c95b7b066b42578b792e30a8.exe"
    Loads dropped DLL
    Adds Run key to start application
    Suspicious use of AdjustPrivilegeToken
    Suspicious use of WriteProcessMemory
    PID:1076
    • C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
      C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
      Executes dropped EXE
      PID:1648
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c ping 127.0.0.1 & del /q "C:\Users\Admin\AppData\Local\Temp\ef395c961e8ce30b98b00741b255f1807ee77eb6c95b7b066b42578b792e30a8.exe"
      Deletes itself
      Suspicious use of WriteProcessMemory
      PID:1456
      • C:\Windows\SysWOW64\PING.EXE
        ping 127.0.0.1
        Runs ping.exe
        PID:1372
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\Local\Temp\MicroMedia\MediaCenter.exe

                      MD5

                      ad5174eea8e76acc51104268632fa66e

                      SHA1

                      557d5ec5a88dd9c061f39ef28ba641a4320f9ec0

                      SHA256

                      c9146fed8d259f08eebaf9c1bcfb757f2a5edddbc798e162bb5d7e91464ab99a

                      SHA512

                      bf3f9bc938ec4ae60d443f5f8af32baf9e10c4ff8043079fa4c13469457962392790b5a3dd343820f81425b5c49796712aad2a2da37ce7642a64e2f25b6f8001

                    • \Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe

                      MD5

                      ad5174eea8e76acc51104268632fa66e

                      SHA1

                      557d5ec5a88dd9c061f39ef28ba641a4320f9ec0

                      SHA256

                      c9146fed8d259f08eebaf9c1bcfb757f2a5edddbc798e162bb5d7e91464ab99a

                      SHA512

                      bf3f9bc938ec4ae60d443f5f8af32baf9e10c4ff8043079fa4c13469457962392790b5a3dd343820f81425b5c49796712aad2a2da37ce7642a64e2f25b6f8001

                    • \Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe

                      MD5

                      ad5174eea8e76acc51104268632fa66e

                      SHA1

                      557d5ec5a88dd9c061f39ef28ba641a4320f9ec0

                      SHA256

                      c9146fed8d259f08eebaf9c1bcfb757f2a5edddbc798e162bb5d7e91464ab99a

                      SHA512

                      bf3f9bc938ec4ae60d443f5f8af32baf9e10c4ff8043079fa4c13469457962392790b5a3dd343820f81425b5c49796712aad2a2da37ce7642a64e2f25b6f8001

                    • memory/1076-59-0x0000000075AA1000-0x0000000075AA3000-memory.dmp

                    • memory/1372-66-0x0000000000000000-mapping.dmp

                    • memory/1456-65-0x0000000000000000-mapping.dmp

                    • memory/1648-62-0x0000000000000000-mapping.dmp