Analysis

  • max time kernel
    94s
  • max time network
    97s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    07-01-2025 07:34

General

  • Target

    0f1f093ac8ac55db7f3d28310ab2b9b92aed9431cfa09ab18d0b0e31f6505815N.exe

  • Size

    668KB

  • MD5

    78eb8e5963914f564140c75bb030cdd0

  • SHA1

    cd53c928dd332bb40fdef34287c4239eff468a4a

  • SHA256

    0f1f093ac8ac55db7f3d28310ab2b9b92aed9431cfa09ab18d0b0e31f6505815

  • SHA512

    c374efe1e2dc1350649e445fd335a667bf29ffe7a7ad2672eb04e995bee8c763dea81360113e1e55275f4c40a59d956d4677939161bc5c7cadb2a91cb152b2a9

  • SSDEEP

    12288:POqBSJNJ/+EkGz1lr3nxGteN4r3t8UOGz624SitfLmygYp0:2CScE7z193Rit8UJ62Bmhgo0

Malware Config

Extracted

Family

xtremerat

C2

gkl7.no-ip.biz

Signatures

  • Detect XtremeRAT payload 11 IoCs
  • XtremeRAT

    The XtremeRAT was developed by xtremecoder and has been available since at least 2010, and written in Delphi.

  • Xtremerat family
  • Boot or Logon Autostart Execution: Active Setup 2 TTPs 6 IoCs

    Adversaries may achieve persistence by adding a Registry key to the Active Setup of the local machine.

  • Executes dropped EXE 2 IoCs
  • Adds Run key to start application 2 TTPs 6 IoCs
  • Drops file in System32 directory 5 IoCs
  • Suspicious use of SetThreadContext 3 IoCs
  • UPX packed file 12 IoCs

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

  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 6 IoCs

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

  • Checks SCSI registry key(s) 3 TTPs 8 IoCs

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

  • Modifies registry class 19 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of SetWindowsHookEx 3 IoCs
  • Suspicious use of WriteProcessMemory 41 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\0f1f093ac8ac55db7f3d28310ab2b9b92aed9431cfa09ab18d0b0e31f6505815N.exe
    "C:\Users\Admin\AppData\Local\Temp\0f1f093ac8ac55db7f3d28310ab2b9b92aed9431cfa09ab18d0b0e31f6505815N.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:432
    • C:\Users\Admin\AppData\Local\Temp\0f1f093ac8ac55db7f3d28310ab2b9b92aed9431cfa09ab18d0b0e31f6505815N.exe
      C:\Users\Admin\AppData\Local\Temp\0f1f093ac8ac55db7f3d28310ab2b9b92aed9431cfa09ab18d0b0e31f6505815N.exe
      2⤵
      • Boot or Logon Autostart Execution: Active Setup
      • Adds Run key to start application
      • Drops file in System32 directory
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:4836
      • C:\Windows\SysWOW64\svchost.exe
        svchost.exe
        3⤵
        • System Location Discovery: System Language Discovery
        • Modifies registry class
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:2228
        • C:\Windows\SysWOW64\InstallDir\Sv.exe
          "C:\Windows\system32\InstallDir\Sv.exe"
          4⤵
          • Executes dropped EXE
          • Suspicious use of SetThreadContext
          • System Location Discovery: System Language Discovery
          • Suspicious use of WriteProcessMemory
          PID:2584
          • C:\Windows\SysWOW64\InstallDir\Sv.exe
            C:\Windows\SysWOW64\InstallDir\Sv.exe
            5⤵
            • Boot or Logon Autostart Execution: Active Setup
            • Executes dropped EXE
            • Adds Run key to start application
            • Drops file in System32 directory
            • Suspicious use of SetThreadContext
            • System Location Discovery: System Language Discovery
            • Suspicious use of WriteProcessMemory
            PID:348
            • C:\Windows\SysWOW64\svchost.exe
              svchost.exe
              6⤵
              • Boot or Logon Autostart Execution: Active Setup
              • Adds Run key to start application
              • System Location Discovery: System Language Discovery
              • Checks SCSI registry key(s)
              • Modifies registry class
              • Suspicious behavior: EnumeratesProcesses
              • Suspicious use of SetWindowsHookEx
              PID:1932

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\((Mutex)).cfg

    Filesize

    1KB

    MD5

    f0430d974b0838d63599bf40647a7ae6

    SHA1

    68c7184c6f4ab0de36d249bd852ea59fd82a24e5

    SHA256

    d88335f0154f4022260fb00795fc2b92ccab16c482b8b3dafe6e4ff563ad39b9

    SHA512

    df17c4a0ab142315932d4da894ecdbb9423575bc7b6b5edf6880722787eb6d546ef0de1fd82576aa20be4edb8bfd0ff5b2c34dc0ce7d0e9f615976c6a981f5e1

  • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\((Mutex)).dat

    Filesize

    2B

    MD5

    84cad01fdb44ae58dbe6c3973dcd87f5

    SHA1

    4700b42849fb35be323774820bf1bc8019d26c80

    SHA256

    8b1f194be530240c18bf0b1ee0d038e750fab8b24c6bd25c864297e5ebb41fa6

    SHA512

    6e10d3ec4724c1aca9ff3f6a26292ba80065d18e8e9395f1474c0a298008f25e312e2f7024e7d10aab3264764e69a25553cc20afd23090f83921d20e42b989ab

  • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\((Mutex)).xtr

    Filesize

    343KB

    MD5

    6426d400c96fb9ffef4eaa54f6647f4c

    SHA1

    70a37871aff432790b6adf7d3fc4eb929476e082

    SHA256

    98bba0cf4c57ecd35b227f45e4aa6dd50ef7cfb1160235cc14687c96eb09fa3c

    SHA512

    2c8b4d3ab066cbfca6cf0c8d89d5044152b5e3d7100249cbedd1c816e3a4a94efc8bc6b79c1dab4bdf96e3ce476d6caccf625cfbe0aff3bf5e7a29dfcfa948c5

  • C:\Windows\SysWOW64\InstallDir\Sv.exe

    Filesize

    668KB

    MD5

    78eb8e5963914f564140c75bb030cdd0

    SHA1

    cd53c928dd332bb40fdef34287c4239eff468a4a

    SHA256

    0f1f093ac8ac55db7f3d28310ab2b9b92aed9431cfa09ab18d0b0e31f6505815

    SHA512

    c374efe1e2dc1350649e445fd335a667bf29ffe7a7ad2672eb04e995bee8c763dea81360113e1e55275f4c40a59d956d4677939161bc5c7cadb2a91cb152b2a9

  • memory/432-29-0x0000000023240000-0x000000002326A000-memory.dmp

    Filesize

    168KB

  • memory/432-0-0x0000000023240000-0x000000002326A000-memory.dmp

    Filesize

    168KB

  • memory/1932-63-0x0000000001610000-0x0000000001712000-memory.dmp

    Filesize

    1.0MB

  • memory/1932-59-0x0000000001610000-0x0000000001712000-memory.dmp

    Filesize

    1.0MB

  • memory/1932-60-0x0000000001610000-0x0000000001712000-memory.dmp

    Filesize

    1.0MB

  • memory/1932-58-0x0000000001610000-0x0000000001712000-memory.dmp

    Filesize

    1.0MB

  • memory/1932-57-0x0000000001610000-0x0000000001712000-memory.dmp

    Filesize

    1.0MB

  • memory/1932-67-0x0000000001610000-0x0000000001712000-memory.dmp

    Filesize

    1.0MB

  • memory/1932-55-0x0000000001610000-0x0000000001712000-memory.dmp

    Filesize

    1.0MB

  • memory/1932-64-0x0000000001610000-0x0000000001712000-memory.dmp

    Filesize

    1.0MB

  • memory/1932-62-0x0000000001610000-0x0000000001712000-memory.dmp

    Filesize

    1.0MB

  • memory/1932-53-0x0000000001610000-0x0000000001712000-memory.dmp

    Filesize

    1.0MB

  • memory/1932-68-0x0000000001610000-0x0000000001712000-memory.dmp

    Filesize

    1.0MB

  • memory/1932-54-0x0000000001610000-0x0000000001712000-memory.dmp

    Filesize

    1.0MB

  • memory/2228-32-0x0000000000C80000-0x0000000000CE9000-memory.dmp

    Filesize

    420KB

  • memory/2228-25-0x0000000000C80000-0x0000000000CE9000-memory.dmp

    Filesize

    420KB

  • memory/2228-19-0x0000000000C80000-0x0000000000CE9000-memory.dmp

    Filesize

    420KB

  • memory/2228-17-0x0000000000C80000-0x0000000000CE9000-memory.dmp

    Filesize

    420KB

  • memory/2584-33-0x0000000023240000-0x000000002326A000-memory.dmp

    Filesize

    168KB

  • memory/2584-66-0x0000000023240000-0x000000002326A000-memory.dmp

    Filesize

    168KB

  • memory/4836-2-0x0000000000C80000-0x0000000000CE9000-memory.dmp

    Filesize

    420KB

  • memory/4836-10-0x0000000000C80000-0x0000000000CE9000-memory.dmp

    Filesize

    420KB

  • memory/4836-4-0x0000000000C80000-0x0000000000CE9000-memory.dmp

    Filesize

    420KB

  • memory/4836-6-0x0000000000C80000-0x0000000000CE9000-memory.dmp

    Filesize

    420KB

  • memory/4836-7-0x0000000000C80000-0x0000000000CE9000-memory.dmp

    Filesize

    420KB

  • memory/4836-9-0x0000000000C80000-0x0000000000CE9000-memory.dmp

    Filesize

    420KB

  • memory/4836-1-0x0000000000C80000-0x0000000000CE9000-memory.dmp

    Filesize

    420KB