Analysis

  • max time kernel
    150s
  • max time network
    149s
  • platform
    windows7_x64
  • resource
    win7v20210410
  • submitted
    05-05-2021 12:22

General

  • Target

    SecuriteInfo.com.Trojan.PackedNET.703.13913.18290.exe

  • Size

    1.7MB

  • MD5

    56626bf21f8de8d051d744973cb2566c

  • SHA1

    af13b7b6844342fd2b2784bb01df9a780be5acbe

  • SHA256

    495e8980ae0b6b1c68d472e9ef3cdb5eb888f8d0be94309acaa35b20536ee859

  • SHA512

    694b761b600301fbd0d87e725903686461dc008c9372776ab01600456581ffb18f875ce84037afca2dff244830b9a72f6a562e6e463d7001794b5daf941f4925

Score
10/10

Malware Config

Extracted

Family

remcos

C2

wedsazxcvfghyuiokjhbnvfcdsaweyplmhbvrtud.ydns.eu:1996

Signatures

  • Remcos

    Remcos is a closed-source remote control and surveillance software.

  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 6 IoCs
  • Adds Run key to start application 2 TTPs 4 IoCs
  • Suspicious use of NtSetInformationThreadHideFromDebugger 22 IoCs
  • Suspicious use of SetThreadContext 2 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Program crash 1 IoCs
  • Delays execution with timeout.exe 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 14 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Trojan.PackedNET.703.13913.18290.exe
    "C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Trojan.PackedNET.703.13913.18290.exe"
    1⤵
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1040
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c timeout 1
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1988
      • C:\Windows\SysWOW64\timeout.exe
        timeout 1
        3⤵
        • Delays execution with timeout.exe
        PID:1788
    • C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Trojan.PackedNET.703.13913.18290.exe
      "C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Trojan.PackedNET.703.13913.18290.exe"
      2⤵
        PID:1724
      • C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Trojan.PackedNET.703.13913.18290.exe
        "C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Trojan.PackedNET.703.13913.18290.exe"
        2⤵
          PID:1752
        • C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Trojan.PackedNET.703.13913.18290.exe
          "C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Trojan.PackedNET.703.13913.18290.exe"
          2⤵
            PID:1712
          • C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Trojan.PackedNET.703.13913.18290.exe
            "C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Trojan.PackedNET.703.13913.18290.exe"
            2⤵
            • Adds Run key to start application
            • Suspicious use of WriteProcessMemory
            PID:1780
            • C:\Windows\SysWOW64\WScript.exe
              "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\install.vbs"
              3⤵
              • Suspicious use of WriteProcessMemory
              PID:1532
              • C:\Windows\SysWOW64\cmd.exe
                "C:\Windows\System32\cmd.exe" /c "C:\Users\Admin\AppData\Roaming\win.exe"
                4⤵
                • Loads dropped DLL
                • Suspicious use of WriteProcessMemory
                PID:576
                • C:\Users\Admin\AppData\Roaming\win.exe
                  C:\Users\Admin\AppData\Roaming\win.exe
                  5⤵
                  • Executes dropped EXE
                  • Suspicious use of NtSetInformationThreadHideFromDebugger
                  • Suspicious use of SetThreadContext
                  • Suspicious behavior: EnumeratesProcesses
                  • Suspicious use of AdjustPrivilegeToken
                  • Suspicious use of WriteProcessMemory
                  PID:856
                  • C:\Windows\SysWOW64\cmd.exe
                    "C:\Windows\System32\cmd.exe" /c timeout 1
                    6⤵
                    • Suspicious use of WriteProcessMemory
                    PID:512
                    • C:\Windows\SysWOW64\timeout.exe
                      timeout 1
                      7⤵
                      • Delays execution with timeout.exe
                      PID:1172
                  • C:\Users\Admin\AppData\Roaming\win.exe
                    "C:\Users\Admin\AppData\Roaming\win.exe"
                    6⤵
                    • Executes dropped EXE
                    • Adds Run key to start application
                    • Suspicious use of SetWindowsHookEx
                    PID:1360
                  • C:\Windows\SysWOW64\WerFault.exe
                    C:\Windows\SysWOW64\WerFault.exe -u -p 856 -s 936
                    6⤵
                    • Loads dropped DLL
                    • Program crash
                    • Suspicious behavior: EnumeratesProcesses
                    • Suspicious behavior: GetForegroundWindowSpam
                    • Suspicious use of AdjustPrivilegeToken
                    PID:1604

        Network

        MITRE ATT&CK Matrix ATT&CK v6

        Persistence

        Registry Run Keys / Startup Folder

        1
        T1060

        Defense Evasion

        Modify Registry

        1
        T1112

        Discovery

        System Information Discovery

        1
        T1082

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • C:\Users\Admin\AppData\Local\Temp\install.vbs
          MD5

          4a74e626596d6e66b4bbc59ee6848f2d

          SHA1

          047849ac8735ecc0943428c7cd5e00b52eee06ed

          SHA256

          98bd6dc219a7a3e04d3d67bbec9f0b4d4640831a3a6be0a0078b050041088b0e

          SHA512

          1cd943482d0f1ce2ffaf6ee4a82895e4d57c52051bb14bbda0548cf072b4c5cbe719d2cdb549b5ae7c0241dd9c68dd9d1674acd26aed684b8145500079cc5403

        • C:\Users\Admin\AppData\Roaming\win.exe
          MD5

          56626bf21f8de8d051d744973cb2566c

          SHA1

          af13b7b6844342fd2b2784bb01df9a780be5acbe

          SHA256

          495e8980ae0b6b1c68d472e9ef3cdb5eb888f8d0be94309acaa35b20536ee859

          SHA512

          694b761b600301fbd0d87e725903686461dc008c9372776ab01600456581ffb18f875ce84037afca2dff244830b9a72f6a562e6e463d7001794b5daf941f4925

        • C:\Users\Admin\AppData\Roaming\win.exe
          MD5

          56626bf21f8de8d051d744973cb2566c

          SHA1

          af13b7b6844342fd2b2784bb01df9a780be5acbe

          SHA256

          495e8980ae0b6b1c68d472e9ef3cdb5eb888f8d0be94309acaa35b20536ee859

          SHA512

          694b761b600301fbd0d87e725903686461dc008c9372776ab01600456581ffb18f875ce84037afca2dff244830b9a72f6a562e6e463d7001794b5daf941f4925

        • C:\Users\Admin\AppData\Roaming\win.exe
          MD5

          56626bf21f8de8d051d744973cb2566c

          SHA1

          af13b7b6844342fd2b2784bb01df9a780be5acbe

          SHA256

          495e8980ae0b6b1c68d472e9ef3cdb5eb888f8d0be94309acaa35b20536ee859

          SHA512

          694b761b600301fbd0d87e725903686461dc008c9372776ab01600456581ffb18f875ce84037afca2dff244830b9a72f6a562e6e463d7001794b5daf941f4925

        • \Users\Admin\AppData\Roaming\win.exe
          MD5

          56626bf21f8de8d051d744973cb2566c

          SHA1

          af13b7b6844342fd2b2784bb01df9a780be5acbe

          SHA256

          495e8980ae0b6b1c68d472e9ef3cdb5eb888f8d0be94309acaa35b20536ee859

          SHA512

          694b761b600301fbd0d87e725903686461dc008c9372776ab01600456581ffb18f875ce84037afca2dff244830b9a72f6a562e6e463d7001794b5daf941f4925

        • \Users\Admin\AppData\Roaming\win.exe
          MD5

          56626bf21f8de8d051d744973cb2566c

          SHA1

          af13b7b6844342fd2b2784bb01df9a780be5acbe

          SHA256

          495e8980ae0b6b1c68d472e9ef3cdb5eb888f8d0be94309acaa35b20536ee859

          SHA512

          694b761b600301fbd0d87e725903686461dc008c9372776ab01600456581ffb18f875ce84037afca2dff244830b9a72f6a562e6e463d7001794b5daf941f4925

        • \Users\Admin\AppData\Roaming\win.exe
          MD5

          56626bf21f8de8d051d744973cb2566c

          SHA1

          af13b7b6844342fd2b2784bb01df9a780be5acbe

          SHA256

          495e8980ae0b6b1c68d472e9ef3cdb5eb888f8d0be94309acaa35b20536ee859

          SHA512

          694b761b600301fbd0d87e725903686461dc008c9372776ab01600456581ffb18f875ce84037afca2dff244830b9a72f6a562e6e463d7001794b5daf941f4925

        • \Users\Admin\AppData\Roaming\win.exe
          MD5

          56626bf21f8de8d051d744973cb2566c

          SHA1

          af13b7b6844342fd2b2784bb01df9a780be5acbe

          SHA256

          495e8980ae0b6b1c68d472e9ef3cdb5eb888f8d0be94309acaa35b20536ee859

          SHA512

          694b761b600301fbd0d87e725903686461dc008c9372776ab01600456581ffb18f875ce84037afca2dff244830b9a72f6a562e6e463d7001794b5daf941f4925

        • \Users\Admin\AppData\Roaming\win.exe
          MD5

          56626bf21f8de8d051d744973cb2566c

          SHA1

          af13b7b6844342fd2b2784bb01df9a780be5acbe

          SHA256

          495e8980ae0b6b1c68d472e9ef3cdb5eb888f8d0be94309acaa35b20536ee859

          SHA512

          694b761b600301fbd0d87e725903686461dc008c9372776ab01600456581ffb18f875ce84037afca2dff244830b9a72f6a562e6e463d7001794b5daf941f4925

        • \Users\Admin\AppData\Roaming\win.exe
          MD5

          56626bf21f8de8d051d744973cb2566c

          SHA1

          af13b7b6844342fd2b2784bb01df9a780be5acbe

          SHA256

          495e8980ae0b6b1c68d472e9ef3cdb5eb888f8d0be94309acaa35b20536ee859

          SHA512

          694b761b600301fbd0d87e725903686461dc008c9372776ab01600456581ffb18f875ce84037afca2dff244830b9a72f6a562e6e463d7001794b5daf941f4925

        • memory/512-81-0x0000000000000000-mapping.dmp
        • memory/576-73-0x0000000000000000-mapping.dmp
        • memory/856-76-0x0000000000000000-mapping.dmp
        • memory/856-78-0x0000000001110000-0x0000000001111000-memory.dmp
          Filesize

          4KB

        • memory/856-83-0x0000000005EB0000-0x0000000005EB1000-memory.dmp
          Filesize

          4KB

        • memory/1040-63-0x0000000000730000-0x0000000000731000-memory.dmp
          Filesize

          4KB

        • memory/1040-60-0x0000000000010000-0x0000000000011000-memory.dmp
          Filesize

          4KB

        • memory/1040-62-0x00000000005E0000-0x000000000061D000-memory.dmp
          Filesize

          244KB

        • memory/1172-82-0x0000000000000000-mapping.dmp
        • memory/1360-85-0x0000000000413FA4-mapping.dmp
        • memory/1360-93-0x0000000000400000-0x0000000000421000-memory.dmp
          Filesize

          132KB

        • memory/1532-69-0x0000000000000000-mapping.dmp
        • memory/1604-95-0x0000000000430000-0x0000000000431000-memory.dmp
          Filesize

          4KB

        • memory/1604-88-0x0000000000000000-mapping.dmp
        • memory/1780-66-0x0000000000400000-0x0000000000421000-memory.dmp
          Filesize

          132KB

        • memory/1780-67-0x0000000000413FA4-mapping.dmp
        • memory/1780-72-0x0000000000400000-0x0000000000421000-memory.dmp
          Filesize

          132KB

        • memory/1780-68-0x0000000074F31000-0x0000000074F33000-memory.dmp
          Filesize

          8KB

        • memory/1788-65-0x0000000000000000-mapping.dmp
        • memory/1988-64-0x0000000000000000-mapping.dmp