Overview

overview

8

Static

static

citadel_0....ir.exe

windows7_x64

8

citadel_0....ir.exe

windows10_x64

8

Analysis

  • max time kernel
    150s
  • max time network
    114s
  • platform
    windows10_x64
  • resource
    win10
  • submitted
    19/07/2020, 17:31

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General

  • Target
    citadel_0.0.1.1.vir.exe
  • Size 544KB
  • Sample200719-38exjgv782
  • SHA256 76494ca680d605eca75201ecf6c87bf1c6070c640e95bf3acfd633ac529a8487
  • MD5 SHA1 SHA512
Score
8/10
persistence

Malware Config

Signatures

  • Suspicious use of AdjustPrivilegeToken 1413 IoCs
  • Suspicious behavior: EnumeratesProcesses 72 IoCs
  • Suspicious use of SetThreadContext 2 IoCs
  • Loads dropped DLL 4 IoCs
  • Executes dropped EXE 2 IoCs
  • Adds Run key to start application 2 TTPs 3 IoCs
    persistence
  • Suspicious use of WriteProcessMemory 79 IoCs

Processes

  • c:\windows\system32\sihost.exe
    sihost.exe
    1⤵
      PID:2668
    • c:\windows\system32\svchost.exe
      c:\windows\system32\svchost.exe -k unistacksvcgroup -s CDPUserSvc
      1⤵
        PID:2680
      • c:\windows\system32\taskhostw.exe
        taskhostw.exe {222A245B-E637-4AE9-A93F-A59CA119A75E}
        1⤵
          PID:2784
        • C:\Windows\Explorer.EXE
          C:\Windows\Explorer.EXE
          1⤵
            PID:2984
            • C:\Users\Admin\AppData\Local\Temp\citadel_0.0.1.1.vir.exe
              "C:\Users\Admin\AppData\Local\Temp\citadel_0.0.1.1.vir.exe"
              2⤵
              • Suspicious use of AdjustPrivilegeToken
              • Suspicious behavior: EnumeratesProcesses
              • Suspicious use of SetThreadContext
              • Suspicious use of WriteProcessMemory
              PID:4032
              • C:\Users\Admin\AppData\Local\Temp\citadel_0.0.1.1.vir.exe
                "C:\Users\Admin\AppData\Local\Temp\citadel_0.0.1.1.vir.exe"
                3⤵
                  PID:3876
                • C:\Users\Admin\AppData\Local\Temp\citadel_0.0.1.1.vir.exe
                  "C:\Users\Admin\AppData\Local\Temp\citadel_0.0.1.1.vir.exe"
                  3⤵
                    PID:3996
                  • C:\Users\Admin\AppData\Local\Temp\citadel_0.0.1.1.vir.exe
                    "C:\Users\Admin\AppData\Local\Temp\citadel_0.0.1.1.vir.exe"
                    3⤵
                      PID:4028
                    • C:\Users\Admin\AppData\Local\Temp\citadel_0.0.1.1.vir.exe
                      "C:\Users\Admin\AppData\Local\Temp\citadel_0.0.1.1.vir.exe"
                      3⤵
                        PID:3856
                      • C:\Users\Admin\AppData\Local\Temp\citadel_0.0.1.1.vir.exe
                        "C:\Users\Admin\AppData\Local\Temp\citadel_0.0.1.1.vir.exe"
                        3⤵
                        • Suspicious use of AdjustPrivilegeToken
                        • Suspicious behavior: EnumeratesProcesses
                        • Loads dropped DLL
                        • Suspicious use of WriteProcessMemory
                        PID:1880
                        • C:\Users\Admin\AppData\Roaming\Ezfiagyp\analraulosg.exe
                          "C:\Users\Admin\AppData\Roaming\Ezfiagyp\analraulosg.exe"
                          4⤵
                          • Suspicious use of SetThreadContext
                          • Executes dropped EXE
                          • Suspicious use of WriteProcessMemory
                          PID:504
                          • C:\Users\Admin\AppData\Roaming\Ezfiagyp\analraulosg.exe
                            "C:\Users\Admin\AppData\Roaming\Ezfiagyp\analraulosg.exe"
                            5⤵
                            • Suspicious use of AdjustPrivilegeToken
                            • Suspicious behavior: EnumeratesProcesses
                            • Loads dropped DLL
                            • Executes dropped EXE
                            • Adds Run key to start application
                            • Suspicious use of WriteProcessMemory
                            PID:3692
                        • C:\Windows\SysWOW64\cmd.exe
                          "C:\Windows\system32\cmd.exe" /c "C:\Users\Admin\AppData\Local\Temp\tmpc5d881c3.bat"
                          4⤵
                            PID:3796
                    • C:\Windows\SystemApps\ShellExperienceHost_cw5n1h2txyewy\ShellExperienceHost.exe
                      "C:\Windows\SystemApps\ShellExperienceHost_cw5n1h2txyewy\ShellExperienceHost.exe" -ServerName:App.AppXtk181tbxbce2qsex02s8tw7hfxa9xb3t.mca
                      1⤵
                        PID:3140
                      • C:\Windows\SystemApps\Microsoft.Windows.Cortana_cw5n1h2txyewy\SearchUI.exe
                        "C:\Windows\SystemApps\Microsoft.Windows.Cortana_cw5n1h2txyewy\SearchUI.exe" -ServerName:CortanaUI.AppXa50dqqa5gqv4a428c9y1jjw7m3btvepj.mca
                        1⤵
                          PID:3156
                        • C:\Windows\System32\RuntimeBroker.exe
                          C:\Windows\System32\RuntimeBroker.exe -Embedding
                          1⤵
                            PID:3380
                          • C:\Windows\system32\DllHost.exe
                            C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}
                            1⤵
                              PID:3700
                            • C:\Windows\system32\backgroundTaskHost.exe
                              "C:\Windows\system32\backgroundTaskHost.exe" -ServerName:CortanaUI.AppXy7vb4pc2dr3kc93kfc509b1d0arkfb2x.mca
                              1⤵
                                PID:3280

                              Network

                                    MITRE ATT&CK Enterprise v6

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                                    Downloads

                                    memory/1880-2-0x0000000000400000-0x0000000000447000-memory.dmp
                                    Download

                                    memory/1880-0-0x0000000000400000-0x0000000000447000-memory.dmp
                                    Download