Analysis

  • max time kernel
    151s
  • max time network
    122s
  • platform
    windows7_x64
  • resource
    win7
  • submitted
    19-07-2020 17:33

General

  • Target

    uncategorized_1.2.0.1.vir.exe

  • Size

    304KB

  • MD5

    a0173bd7d459e734f3417e40e612bb0c

  • SHA1

    f107596acaa9e7a0916a46a68db923e3ab228be1

  • SHA256

    f06047b09abc77529969c5949deda36ff154539d1b9ed8942c22fbb307d8aac9

  • SHA512

    310fff512b750c5eab7361c1c23906d78353d8443fe0c95454e0ff9afce930f183ad37c3ac8ba8bb1ce8428443929a32d47ec641279272b96e60d6df96c0674b

Score
8/10

Malware Config

Signatures

  • Suspicious behavior: EnumeratesProcesses 33 IoCs
  • Adds Run key to start application 2 TTPs 2 IoCs
  • Modifies system certificate store 2 TTPs 4 IoCs
  • Suspicious use of WriteProcessMemory 59 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Loads dropped DLL 2 IoCs
  • Drops autorun.inf file 1 TTPs

    Malware can abuse Windows Autorun to spread further via attached volumes.

  • Suspicious use of SetThreadContext 2 IoCs
  • Executes dropped EXE 2 IoCs
  • Deletes itself 1 IoCs

Processes

  • C:\Windows\system32\taskhost.exe
    "taskhost.exe"
    1⤵
      PID:1080
    • C:\Windows\system32\Dwm.exe
      "C:\Windows\system32\Dwm.exe"
      1⤵
        PID:1188
      • C:\Windows\Explorer.EXE
        C:\Windows\Explorer.EXE
        1⤵
          PID:1228
          • C:\Users\Admin\AppData\Local\Temp\uncategorized_1.2.0.1.vir.exe
            "C:\Users\Admin\AppData\Local\Temp\uncategorized_1.2.0.1.vir.exe"
            2⤵
            • Suspicious use of WriteProcessMemory
            • Suspicious use of SetThreadContext
            PID:1496
            • C:\Users\Admin\AppData\Local\Temp\uncategorized_1.2.0.1.vir.exe
              "C:\Users\Admin\AppData\Local\Temp\uncategorized_1.2.0.1.vir.exe"
              3⤵
              • Suspicious use of WriteProcessMemory
              • Suspicious use of AdjustPrivilegeToken
              • Loads dropped DLL
              PID:1560
              • C:\Users\Admin\AppData\Roaming\Gekih\rusu.exe
                "C:\Users\Admin\AppData\Roaming\Gekih\rusu.exe"
                4⤵
                • Suspicious use of WriteProcessMemory
                • Suspicious use of SetThreadContext
                • Executes dropped EXE
                PID:304
                • C:\Users\Admin\AppData\Roaming\Gekih\rusu.exe
                  "C:\Users\Admin\AppData\Roaming\Gekih\rusu.exe"
                  5⤵
                  • Suspicious behavior: EnumeratesProcesses
                  • Adds Run key to start application
                  • Modifies system certificate store
                  • Suspicious use of WriteProcessMemory
                  • Executes dropped EXE
                  PID:752
              • C:\Windows\SysWOW64\cmd.exe
                "C:\Windows\system32\cmd.exe" /c "C:\Users\Admin\AppData\Local\Temp\tmpeac0bbda.bat"
                4⤵
                • Deletes itself
                PID:1060
        • C:\Windows\system32\conhost.exe
          \??\C:\Windows\system32\conhost.exe "-673675417-195247640-1200046112-255127308-147935301413437546182064997743-1990493065"
          1⤵
            PID:1048
          • C:\Windows\system32\DllHost.exe
            C:\Windows\system32\DllHost.exe /Processid:{F9717507-6651-4EDB-BFF7-AE615179BCCF}
            1⤵
              PID:1844
            • C:\Windows\system32\DllHost.exe
              C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}
              1⤵
                PID:1884

              Network

              MITRE ATT&CK Matrix ATT&CK v6

              Initial Access

              Replication Through Removable Media

              1
              T1091

              Persistence

              Registry Run Keys / Startup Folder

              1
              T1060

              Defense Evasion

              Modify Registry

              2
              T1112

              Install Root Certificate

              1
              T1130

              Lateral Movement

              Replication Through Removable Media

              1
              T1091

              Replay Monitor

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              Downloads

              • C:\Users\Admin\AppData\Local\Temp\tmpeac0bbda.bat
              • C:\Users\Admin\AppData\Roaming\Gekih\rusu.exe
              • C:\Users\Admin\AppData\Roaming\Gekih\rusu.exe
              • C:\Users\Admin\AppData\Roaming\Gekih\rusu.exe
              • \Users\Admin\AppData\Roaming\Gekih\rusu.exe
              • \Users\Admin\AppData\Roaming\Gekih\rusu.exe
              • memory/304-5-0x0000000000000000-mapping.dmp
              • memory/752-9-0x0000000000415D3E-mapping.dmp
              • memory/1060-12-0x0000000000000000-mapping.dmp
              • memory/1060-13-0x0000000000000000-mapping.dmp
              • memory/1560-0-0x0000000000400000-0x0000000000427000-memory.dmp
                Filesize

                156KB

              • memory/1560-2-0x0000000000400000-0x0000000000427000-memory.dmp
                Filesize

                156KB

              • memory/1560-1-0x0000000000415D3E-mapping.dmp