Analysis

  • max time kernel
    149s
  • max time network
    151s
  • platform
    windows11-21h2_x64
  • resource
    win11-20260513-en
  • resource tags

    arch:x64arch:x86image:win11-20260513-enlocale:en-usos:windows11-21h2-x64systemwindows
  • submitted
    24/05/2026, 02:03

General

  • Target
    sub_9b95dc377440.exe
  • Size 1.0MB
  • Sample260524-cg69pse19j
  • SHA256 9b95dc37744055c1d9cec9f4383ddb52bf0436a3ae88112b782211a02533fa88
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Family: BunnyLoader

    BunnyLoader is a loader family written in C++.

  • Detect BunnyLoader 3 IoCs
  • Suspicious use of NtCreateUserProcessOtherParentProcess 2 IoCs
  • Drops startup file 2 IoCs
  • Executes dropped EXE 1 IoCs
  • Looks up external IP address via web service 1 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Enumerates processes with tasklist 1 TTPs 2 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 16 IoCs

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

  • System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 1 IoCs

    Adversaries may check for Internet connectivity on compromised systems.

  • Runs ping.exe 1 TTPs 1 IoCs
  • Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 20 IoCs
  • Suspicious use of AdjustPrivilegeToken 44 IoCs
  • Suspicious use of FindShellTrayWindow 3 IoCs
  • Suspicious use of SendNotifyMessage 3 IoCs
  • Suspicious use of WriteProcessMemory 15 IoCs

Processes

  • C:\Windows\Explorer.EXE
    C:\Windows\Explorer.EXE
    1⤵
      PID:3196
      • C:\Users\Admin\AppData\Local\Temp\sub_9b95dc377440.exe
        "C:\Users\Admin\AppData\Local\Temp\sub_9b95dc377440.exe"
        2⤵
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:692
        • C:\Windows\SysWOW64\cmd.exe
          "C:\Windows\System32\cmd.exe" /k move Azerbaijan Azerbaijan.bat & Azerbaijan.bat & exit
          3⤵
          • System Location Discovery: System Language Discovery
          • Suspicious use of WriteProcessMemory
          PID:4492
          • C:\Windows\SysWOW64\tasklist.exe
            tasklist
            4⤵
            • Enumerates processes with tasklist
            • System Location Discovery: System Language Discovery
            • Suspicious use of AdjustPrivilegeToken
            PID:2860
          • C:\Windows\SysWOW64\findstr.exe
            findstr /I "avastui.exe avgui.exe nswscsvc.exe sophoshealth.exe"
            4⤵
            • System Location Discovery: System Language Discovery
            PID:2396
          • C:\Windows\SysWOW64\tasklist.exe
            tasklist
            4⤵
            • Enumerates processes with tasklist
            • System Location Discovery: System Language Discovery
            • Suspicious use of AdjustPrivilegeToken
            PID:2680
          • C:\Windows\SysWOW64\findstr.exe
            findstr /I "wrsa.exe opssvc.exe"
            4⤵
            • System Location Discovery: System Language Discovery
            PID:3876
          • C:\Windows\SysWOW64\cmd.exe
            cmd /c md 14677
            4⤵
            • System Location Discovery: System Language Discovery
            PID:3728
          • C:\Windows\SysWOW64\cmd.exe
            cmd /c copy /b Ap + Friend + County + Laws + Plant 14677\Memo.pif
            4⤵
            • System Location Discovery: System Language Discovery
            PID:2628
          • C:\Windows\SysWOW64\cmd.exe
            cmd /c copy /b Bring 14677\g
            4⤵
            • System Location Discovery: System Language Discovery
            PID:2772
          • C:\Users\Admin\AppData\Local\Temp\7ZipSfx.000\14677\Memo.pif
            14677\Memo.pif 14677\g
            4⤵
            • Suspicious use of NtCreateUserProcessOtherParentProcess
            • Executes dropped EXE
            • System Location Discovery: System Language Discovery
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of FindShellTrayWindow
            • Suspicious use of SendNotifyMessage
            • Suspicious use of WriteProcessMemory
            PID:3048
            • C:\Windows\SysWOW64\cmd.exe
              C:\Windows\system32\cmd.exe /c wmic /namespace:\\root\SecurityCenter2 path AntiVirusProduct get displayName /value
              5⤵
              • System Location Discovery: System Language Discovery
              • Suspicious use of WriteProcessMemory
              PID:748
              • C:\Windows\SysWOW64\Wbem\WMIC.exe
                wmic /namespace:\\root\SecurityCenter2 path AntiVirusProduct get displayName /value
                6⤵
                • System Location Discovery: System Language Discovery
                • Suspicious use of AdjustPrivilegeToken
                PID:4952
          • C:\Windows\SysWOW64\PING.EXE
            ping -n 5 localhost
            4⤵
            • System Location Discovery: System Language Discovery
            • System Network Configuration Discovery: Internet Connection Discovery
            • Runs ping.exe
            PID:1648
      • C:\Windows\SysWOW64\cmd.exe
        cmd /k echo [InternetShortcut] > "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\ZenPulse.url" & echo URL="C:\Users\Admin\AppData\Local\MindWave Technologies LLC\ZenPulse.js" >> "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\ZenPulse.url" & exit
        2⤵
        • Drops startup file
        • System Location Discovery: System Language Discovery
        PID:2492
      • C:\Windows\SysWOW64\cmd.exe
        cmd /c schtasks.exe /create /tn "Hotmail" /tr "wscript 'C:\Users\Admin\AppData\Local\MindWave Technologies LLC\ZenPulse.js'" /sc minute /mo 3 /F
        2⤵
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:3248
        • C:\Windows\SysWOW64\schtasks.exe
          schtasks.exe /create /tn "Hotmail" /tr "wscript 'C:\Users\Admin\AppData\Local\MindWave Technologies LLC\ZenPulse.js'" /sc minute /mo 3 /F
          3⤵
          • System Location Discovery: System Language Discovery
          • Scheduled Task/Job: Scheduled Task
          PID:2392
    • C:\Windows\system32\wscript.exe
      wscript
      1⤵
        PID:1152

      Network

            MITRE ATT&CK Enterprise v16

            Replay Monitor

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            Downloads

            Memo.pif

            • Path C:\Users\Admin\AppData\Local\Temp\7ZipSfx.000\14677\Memo.pif
            • Size 924KB
            • SHA256 f58d3a4b2f3f7f10815c24586fae91964eeed830369e7e0701b43895b0cefbd3
            • MD5 SHA1 SHA512 SSDEEP TLSH

            Ap

            • Path C:\Users\Admin\AppData\Local\Temp\7ZipSfx.000\Ap
            • Size 259KB
            • SHA256 61e6fb53b7c6b26fdfbee29d63bb36c8dd33ed7fb8ed97ca488d107fbc1ba3c3
            • MD5 SHA1 SHA512 SSDEEP TLSH

            Azerbaijan

            • Path C:\Users\Admin\AppData\Local\Temp\7ZipSfx.000\Azerbaijan
            • Size 10KB
            • SHA256 75978ba45715cad18f1dc9acc0eec4a1e6194cda6cfcb44daaeb851be665f52e
            • MD5 SHA1 SHA512 SSDEEP TLSH

            Bring

            • Path C:\Users\Admin\AppData\Local\Temp\7ZipSfx.000\Bring
            • Size 878KB
            • SHA256 cd82e9442c7643b70b267a68f2bbe271298e7474b8310cd50e4b6e586b7d9f44
            • MD5 SHA1 SHA512 SSDEEP TLSH

            County

            • Path C:\Users\Admin\AppData\Local\Temp\7ZipSfx.000\County
            • Size 206KB
            • SHA256 70c40c9ca3ccfe1176875a073e911e8deb3e015b6ef2fd0051223a335dd76033
            • MD5 SHA1 SHA512 SSDEEP TLSH

            Friend

            • Path C:\Users\Admin\AppData\Local\Temp\7ZipSfx.000\Friend
            • Size 156KB
            • SHA256 f70978891348d7b742c8012d05be109c5d93e05207dd0ac4d16484e496973552
            • MD5 SHA1 SHA512 SSDEEP TLSH

            Laws

            • Path C:\Users\Admin\AppData\Local\Temp\7ZipSfx.000\Laws
            • Size 284KB
            • SHA256 c522ac485cfbdb75bb3f35bfe62263fb17cb64464e111d2e287b9084a85ff670
            • MD5 SHA1 SHA512 SSDEEP TLSH

            Plant

            • Path C:\Users\Admin\AppData\Local\Temp\7ZipSfx.000\Plant
            • Size 19KB
            • SHA256 7d270a6900ef6385133b30e462bd157aa925543abaaf248cffe263fae0c33f4b
            • MD5 SHA1 SHA512 SSDEEP TLSH

            memory/3048-34-0x0000000005310000-0x000000000536D000-memory.dmp

            memory/3048-33-0x0000000005310000-0x000000000536D000-memory.dmp

            memory/3048-35-0x0000000005310000-0x000000000536D000-memory.dmp

            memory/3048-36-0x0000000005310000-0x000000000536D000-memory.dmp

            memory/3048-38-0x0000000005310000-0x000000000536D000-memory.dmp

            memory/3048-37-0x0000000005310000-0x000000000536D000-memory.dmp