Analysis

  • max time kernel
    150s
  • max time network
    135s
  • platform
    windows10_x64
  • resource
    win10v20201028
  • submitted
    09/11/2020, 20:09

General

  • Target
    1adf10dff75f331c15f6a273db0e62c4.exe
  • Size 667KB
  • Sample201109-pqbk2ebhex
  • SHA256 ec3fae8f7d132adb356d2edf3d8997e7b22165949a698f74bc79586f5e9e9bd6
  • MD5 SHA1 SHA512

Malware Config

Extracted

Family
  • agenttesla

Credentials
  • Protocol

    smtp

  • Host

    premium49.web-hosting.com

  • Port

    587

  • Password

    NR*[Q66kH&&@

Signatures

  • AgentTesla

    Agent Tesla is a remote access tool (RAT) written in visual basic.

  • AgentTesla Payload 10 IoCs
  • Adds Run key to start application 2 TTPs 10 IoCs
  • Suspicious use of SetThreadContext 9 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: MapViewOfSection 13 IoCs
  • Suspicious use of AdjustPrivilegeToken 18 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\1adf10dff75f331c15f6a273db0e62c4.exe
    "C:\Users\Admin\AppData\Local\Temp\1adf10dff75f331c15f6a273db0e62c4.exe"
    1⤵
    • Adds Run key to start application
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: MapViewOfSection
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1304
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
      2⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:1424
    • C:\Users\Admin\AppData\Local\Temp\1adf10dff75f331c15f6a273db0e62c4.exe
      "C:\Users\Admin\AppData\Local\Temp\1adf10dff75f331c15f6a273db0e62c4.exe"
      2⤵
      • Adds Run key to start application
      • Suspicious use of SetThreadContext
      • Suspicious behavior: MapViewOfSection
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:352
      • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
        "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
        3⤵
        • Suspicious use of AdjustPrivilegeToken
        PID:3132
      • C:\Users\Admin\AppData\Local\Temp\1adf10dff75f331c15f6a273db0e62c4.exe
        "C:\Users\Admin\AppData\Local\Temp\1adf10dff75f331c15f6a273db0e62c4.exe"
        3⤵
        • Adds Run key to start application
        • Suspicious use of SetThreadContext
        • Suspicious behavior: MapViewOfSection
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:2116
        • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
          "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
          4⤵
            PID:1804
          • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
            "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
            4⤵
            • Suspicious use of AdjustPrivilegeToken
            PID:1520
          • C:\Users\Admin\AppData\Local\Temp\1adf10dff75f331c15f6a273db0e62c4.exe
            "C:\Users\Admin\AppData\Local\Temp\1adf10dff75f331c15f6a273db0e62c4.exe"
            4⤵
            • Adds Run key to start application
            • Suspicious use of SetThreadContext
            • Suspicious behavior: MapViewOfSection
            • Suspicious use of AdjustPrivilegeToken
            • Suspicious use of WriteProcessMemory
            PID:1908
            • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
              "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
              5⤵
                PID:3672
              • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
                "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
                5⤵
                • Suspicious use of AdjustPrivilegeToken
                PID:1084
              • C:\Users\Admin\AppData\Local\Temp\1adf10dff75f331c15f6a273db0e62c4.exe
                "C:\Users\Admin\AppData\Local\Temp\1adf10dff75f331c15f6a273db0e62c4.exe"
                5⤵
                • Adds Run key to start application
                • Suspicious use of SetThreadContext
                • Suspicious behavior: MapViewOfSection
                • Suspicious use of AdjustPrivilegeToken
                • Suspicious use of WriteProcessMemory
                PID:1152
                • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
                  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
                  6⤵
                  • Suspicious use of AdjustPrivilegeToken
                  PID:1044
                • C:\Users\Admin\AppData\Local\Temp\1adf10dff75f331c15f6a273db0e62c4.exe
                  "C:\Users\Admin\AppData\Local\Temp\1adf10dff75f331c15f6a273db0e62c4.exe"
                  6⤵
                  • Adds Run key to start application
                  • Suspicious use of SetThreadContext
                  • Suspicious behavior: MapViewOfSection
                  • Suspicious use of AdjustPrivilegeToken
                  • Suspicious use of WriteProcessMemory
                  PID:372
                  • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
                    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
                    7⤵
                    • Suspicious use of AdjustPrivilegeToken
                    PID:1796
                  • C:\Users\Admin\AppData\Local\Temp\1adf10dff75f331c15f6a273db0e62c4.exe
                    "C:\Users\Admin\AppData\Local\Temp\1adf10dff75f331c15f6a273db0e62c4.exe"
                    7⤵
                    • Adds Run key to start application
                    • Suspicious use of SetThreadContext
                    • Suspicious behavior: MapViewOfSection
                    • Suspicious use of AdjustPrivilegeToken
                    • Suspicious use of WriteProcessMemory
                    PID:3952
                    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
                      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
                      8⤵
                        PID:3884
                      • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
                        "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
                        8⤵
                        • Suspicious use of AdjustPrivilegeToken
                        PID:1140
                      • C:\Users\Admin\AppData\Local\Temp\1adf10dff75f331c15f6a273db0e62c4.exe
                        "C:\Users\Admin\AppData\Local\Temp\1adf10dff75f331c15f6a273db0e62c4.exe"
                        8⤵
                        • Adds Run key to start application
                        • Suspicious use of SetThreadContext
                        • Suspicious behavior: MapViewOfSection
                        • Suspicious use of AdjustPrivilegeToken
                        • Suspicious use of WriteProcessMemory
                        PID:1716
                        • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
                          "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
                          9⤵
                            PID:3924
                          • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
                            "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
                            9⤵
                            • Suspicious use of AdjustPrivilegeToken
                            PID:1220
                          • C:\Users\Admin\AppData\Local\Temp\1adf10dff75f331c15f6a273db0e62c4.exe
                            "C:\Users\Admin\AppData\Local\Temp\1adf10dff75f331c15f6a273db0e62c4.exe"
                            9⤵
                            • Adds Run key to start application
                            • Suspicious use of SetThreadContext
                            • Suspicious behavior: MapViewOfSection
                            • Suspicious use of AdjustPrivilegeToken
                            PID:992
                            • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
                              "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
                              10⤵
                              • Suspicious use of AdjustPrivilegeToken
                              PID:500
                            • C:\Users\Admin\AppData\Local\Temp\1adf10dff75f331c15f6a273db0e62c4.exe
                              "C:\Users\Admin\AppData\Local\Temp\1adf10dff75f331c15f6a273db0e62c4.exe"
                              10⤵
                              • Adds Run key to start application
                              PID:1360

          Network

                MITRE ATT&CK Enterprise v6

                Replay Monitor

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                Downloads

                memory/352-12-0x0000000073C50000-0x000000007433E000-memory.dmp

                memory/372-70-0x0000000073C50000-0x000000007433E000-memory.dmp

                memory/500-122-0x0000000073C50000-0x000000007433E000-memory.dmp

                memory/992-115-0x0000000073C50000-0x000000007433E000-memory.dmp

                memory/1044-64-0x0000000073C50000-0x000000007433E000-memory.dmp

                memory/1084-50-0x0000000073C50000-0x000000007433E000-memory.dmp

                memory/1140-93-0x0000000073C50000-0x000000007433E000-memory.dmp

                memory/1152-56-0x0000000073C50000-0x000000007433E000-memory.dmp

                memory/1220-108-0x0000000073C50000-0x000000007433E000-memory.dmp

                memory/1220-114-0x0000000005330000-0x0000000005331000-memory.dmp

                memory/1304-1-0x0000000000D80000-0x0000000000D81000-memory.dmp

                memory/1304-3-0x00000000055B0000-0x0000000005604000-memory.dmp

                memory/1304-0-0x0000000073C50000-0x000000007433E000-memory.dmp

                memory/1360-128-0x0000000073C50000-0x000000007433E000-memory.dmp

                memory/1424-4-0x0000000000400000-0x0000000000452000-memory.dmp

                memory/1424-17-0x0000000006450000-0x0000000006451000-memory.dmp

                memory/1424-15-0x0000000005930000-0x0000000005931000-memory.dmp

                memory/1424-10-0x0000000005880000-0x0000000005881000-memory.dmp

                memory/1424-9-0x0000000005EE0000-0x0000000005EE1000-memory.dmp

                memory/1424-6-0x0000000073C50000-0x000000007433E000-memory.dmp

                memory/1520-35-0x0000000073C50000-0x000000007433E000-memory.dmp

                memory/1716-100-0x0000000073C50000-0x000000007433E000-memory.dmp

                memory/1796-78-0x0000000073C50000-0x000000007433E000-memory.dmp

                memory/1796-84-0x0000000005300000-0x0000000005301000-memory.dmp

                memory/1908-41-0x0000000073C50000-0x000000007433E000-memory.dmp

                memory/2116-32-0x0000000005070000-0x00000000050C2000-memory.dmp

                memory/2116-27-0x0000000073C50000-0x000000007433E000-memory.dmp

                memory/3132-26-0x0000000004FF0000-0x0000000004FF1000-memory.dmp

                memory/3132-20-0x0000000073C50000-0x000000007433E000-memory.dmp

                memory/3952-85-0x0000000073C50000-0x000000007433E000-memory.dmp