Analysis

  • max time kernel
    95s
  • max time network
    97s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • submitted
    28-11-2024 07:35

General

  • Target

    chutmarao.ps1

  • Size

    2.5MB

  • MD5

    7c2e9489af70d3967960dbe1cb87f4ae

  • SHA1

    bcade1f31f869e58848c09cd022652b612580daf

  • SHA256

    19bad3275a0cd1caa9a8eb75d496eaa897ca4c7a07aeab78ab3309d91b4f64fd

  • SHA512

    9d910243fa5847046dd6793465d5b84c2e1f72d7d42acd5e52860f9bd3545b25e981322a312930a192dd43bafe3c5679657699a78bc98f48b4b6a2aec447a374

  • SSDEEP

    1536:7Ic2Lo8L+bTXe26vgn00oR/S7rV521Gd9AcaMorjFN4UAjtbTliBdIpjXClBEv7l:ZD1

Malware Config

Extracted

Family

rhadamanthys

C2

https://185.196.8.68:9367/ab43097ee4f6e091aed46f79/88pw46v5.ki88g

Signatures

  • Rhadamanthys

    Rhadamanthys is an info stealer written in C++ first seen in August 2022.

  • Rhadamanthys family
  • Suspicious use of NtCreateUserProcessOtherParentProcess 1 IoCs
  • Deletes itself 1 IoCs
  • Adds Run key to start application 2 TTPs 2 IoCs
  • Suspicious use of SetThreadContext 6 IoCs
  • Drops file in Windows directory 1 IoCs
  • Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

    Using powershell.exe command.

  • System Location Discovery: System Language Discovery 1 TTPs 11 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Checks processor information in registry 2 TTPs 12 IoCs

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

  • Enumerates system info in registry 2 TTPs 8 IoCs
  • Suspicious behavior: EnumeratesProcesses 24 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Windows\system32\sihost.exe
    sihost.exe
    1⤵
      PID:2660
      • C:\Windows\SysWOW64\openwith.exe
        "C:\Windows\system32\openwith.exe"
        2⤵
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        PID:3080
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      powershell.exe -ExecutionPolicy bypass -File C:\Users\Admin\AppData\Local\Temp\chutmarao.ps1
      1⤵
      • Deletes itself
      • Adds Run key to start application
      • Suspicious use of SetThreadContext
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:748
      • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
        "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
        2⤵
        • System Location Discovery: System Language Discovery
        PID:896
      • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
        "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
        2⤵
        • Suspicious use of NtCreateUserProcessOtherParentProcess
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of WriteProcessMemory
        PID:5056
      • C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegSvcs.exe
        "C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegSvcs.exe"
        2⤵
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:3524
        • C:\Windows\Microsoft.NET\Framework\v2.0.50727\dw20.exe
          dw20.exe -x -s 912
          3⤵
          • System Location Discovery: System Language Discovery
          • Checks processor information in registry
          • Enumerates system info in registry
          • Suspicious use of AdjustPrivilegeToken
          PID:4784
      • C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegSvcs.exe
        "C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegSvcs.exe"
        2⤵
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:1124
        • C:\Windows\Microsoft.NET\Framework\v2.0.50727\dw20.exe
          dw20.exe -x -s 912
          3⤵
          • Drops file in Windows directory
          • System Location Discovery: System Language Discovery
          • Checks processor information in registry
          • Enumerates system info in registry
          • Suspicious use of AdjustPrivilegeToken
          PID:1936
      • C:\Windows\Microsoft.NET\Framework\v3.5\Msbuild.exe
        "C:\Windows\Microsoft.NET\Framework\v3.5\Msbuild.exe"
        2⤵
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:3276
        • C:\Windows\Microsoft.NET\Framework\v2.0.50727\dw20.exe
          dw20.exe -x -s 780
          3⤵
          • System Location Discovery: System Language Discovery
          • Checks processor information in registry
          • Enumerates system info in registry
          • Suspicious use of AdjustPrivilegeToken
          PID:3988
      • C:\Windows\Microsoft.NET\Framework\v3.5\Msbuild.exe
        "C:\Windows\Microsoft.NET\Framework\v3.5\Msbuild.exe"
        2⤵
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:3964
        • C:\Windows\Microsoft.NET\Framework\v2.0.50727\dw20.exe
          dw20.exe -x -s 760
          3⤵
          • System Location Discovery: System Language Discovery
          • Checks processor information in registry
          • Enumerates system info in registry
          • Suspicious use of AdjustPrivilegeToken
          PID:4788

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    Downloads

    • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\RegSvcs.exe.log

      Filesize

      315B

      MD5

      69acc92e6df5c35cf75eded8f61ddeaa

      SHA1

      b405090a2f92f85490705dcf77a6461ad85e7e20

      SHA256

      da3437f337aca0e1f8d7b187abcd9112d88beddde8ab8ae5aa8a8ab91b6e9698

      SHA512

      9b83a6ef14372d9e229beb69c1b1ede6f348fb51925205f99f705808db6331c5aab32bd57fc786c61647cbb94f7e4bd236dc9f4fc26be4c1ffc7a35e7619a508

    • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_42slmf00.nbr.ps1

      Filesize

      60B

      MD5

      d17fe0a3f47be24a6453e9ef58c94641

      SHA1

      6ab83620379fc69f80c0242105ddffd7d98d5d9d

      SHA256

      96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

      SHA512

      5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

    • memory/748-15-0x00007FFB34543000-0x00007FFB34545000-memory.dmp

      Filesize

      8KB

    • memory/748-11-0x00007FFB34540000-0x00007FFB35001000-memory.dmp

      Filesize

      10.8MB

    • memory/748-12-0x00007FFB34540000-0x00007FFB35001000-memory.dmp

      Filesize

      10.8MB

    • memory/748-14-0x00007FFB34540000-0x00007FFB35001000-memory.dmp

      Filesize

      10.8MB

    • memory/748-0-0x00007FFB34543000-0x00007FFB34545000-memory.dmp

      Filesize

      8KB

    • memory/748-16-0x00007FFB34540000-0x00007FFB35001000-memory.dmp

      Filesize

      10.8MB

    • memory/748-17-0x00007FFB34540000-0x00007FFB35001000-memory.dmp

      Filesize

      10.8MB

    • memory/748-18-0x00007FFB34540000-0x00007FFB35001000-memory.dmp

      Filesize

      10.8MB

    • memory/748-19-0x000001CA81830000-0x000001CA81842000-memory.dmp

      Filesize

      72KB

    • memory/748-20-0x000001CAFFF20000-0x000001CAFFF3A000-memory.dmp

      Filesize

      104KB

    • memory/748-10-0x000001CAFFEF0000-0x000001CAFFF12000-memory.dmp

      Filesize

      136KB

    • memory/748-77-0x00007FFB34540000-0x00007FFB35001000-memory.dmp

      Filesize

      10.8MB

    • memory/896-21-0x0000000000400000-0x00000000004B8000-memory.dmp

      Filesize

      736KB

    • memory/896-57-0x0000000007610000-0x0000000007618000-memory.dmp

      Filesize

      32KB

    • memory/896-58-0x0000000007620000-0x0000000007630000-memory.dmp

      Filesize

      64KB

    • memory/896-63-0x0000000007630000-0x0000000007A30000-memory.dmp

      Filesize

      4.0MB

    • memory/1124-31-0x00000000014A0000-0x00000000014B0000-memory.dmp

      Filesize

      64KB

    • memory/3080-76-0x0000000075070000-0x0000000075285000-memory.dmp

      Filesize

      2.1MB

    • memory/3080-74-0x00007FFB52610000-0x00007FFB52805000-memory.dmp

      Filesize

      2.0MB

    • memory/3080-73-0x00000000027F0000-0x0000000002BF0000-memory.dmp

      Filesize

      4.0MB

    • memory/3080-70-0x0000000000CC0000-0x0000000000CC9000-memory.dmp

      Filesize

      36KB

    • memory/3276-29-0x0000000000CA0000-0x0000000000CB0000-memory.dmp

      Filesize

      64KB

    • memory/3524-30-0x0000000001960000-0x0000000001970000-memory.dmp

      Filesize

      64KB

    • memory/5056-32-0x0000000000700000-0x00000000007B8000-memory.dmp

      Filesize

      736KB

    • memory/5056-69-0x0000000075070000-0x0000000075285000-memory.dmp

      Filesize

      2.1MB

    • memory/5056-67-0x00007FFB52610000-0x00007FFB52805000-memory.dmp

      Filesize

      2.0MB

    • memory/5056-62-0x00000000073F0000-0x00000000077F0000-memory.dmp

      Filesize

      4.0MB

    • memory/5056-60-0x00000000073F0000-0x00000000077F0000-memory.dmp

      Filesize

      4.0MB

    • memory/5056-59-0x00000000073C0000-0x00000000073D0000-memory.dmp

      Filesize

      64KB

    • memory/5056-40-0x0000000004CC0000-0x0000000004D66000-memory.dmp

      Filesize

      664KB

    • memory/5056-33-0x0000000005EC0000-0x0000000005F52000-memory.dmp

      Filesize

      584KB