Analysis

  • max time kernel
    150s
  • max time network
    108s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230221-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230221-enlocale:en-usos:windows10-2004-x64system
  • submitted
    10/05/2023, 09:07

General

  • Target

    PO FILE87965345 exl.exe

  • Size

    1.8MB

  • MD5

    26fa36b587e07bde2d99f329ba553e9c

  • SHA1

    5d2b42a954666f85fcf91475c3ec361c4c254764

  • SHA256

    511bd4f1051444242dda8ae6df80720106a6b4d60eab89658baffb142affe730

  • SHA512

    413bf79332518b6af56cc23c162d2b981a94744e463b1a01ab8f3699c681cad077d177e3213132d1791969810bc7065667b331deb4f51570a31c96a625b4c694

  • SSDEEP

    12288:9d7uix2TBXVnBGw4I/6QTdp7lRpIlfMer5iiTvdyEp8NMXzp4J2cT3RnnrgYs3aF:98MXzCYqBrfGadT

Score
10/10

Malware Config

Signatures

  • Modifies WinLogon for persistence 2 TTPs 1 IoCs
  • Executes dropped EXE 1 IoCs
  • Runs ping.exe 1 TTPs 3 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 21 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\PO FILE87965345 exl.exe
    "C:\Users\Admin\AppData\Local\Temp\PO FILE87965345 exl.exe"
    1⤵
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4376
    • C:\Windows\SysWOW64\cmd.exe
      "cmd" /c ping 127.0.0.1 -n 39 > nul && REG ADD "HKCU\Software\Microsoft\Windows NT\CurrentVersion\Winlogon" /f /v "Shell" /t REG_SZ /d "explorer.exe,C:\Users\Admin\AppData\Local\htv.exe,"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1960
      • C:\Windows\SysWOW64\PING.EXE
        ping 127.0.0.1 -n 39
        3⤵
        • Runs ping.exe
        PID:5028
      • C:\Windows\SysWOW64\reg.exe
        REG ADD "HKCU\Software\Microsoft\Windows NT\CurrentVersion\Winlogon" /f /v "Shell" /t REG_SZ /d "explorer.exe,C:\Users\Admin\AppData\Local\htv.exe,"
        3⤵
        • Modifies WinLogon for persistence
        PID:1436
    • C:\Windows\SysWOW64\cmd.exe
      "cmd" /c ping 127.0.0.1 -n 48 > nul && copy "C:\Users\Admin\AppData\Local\Temp\PO FILE87965345 exl.exe" "C:\Users\Admin\AppData\Local\htv.exe" && ping 127.0.0.1 -n 48 > nul && "C:\Users\Admin\AppData\Local\htv.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1512
      • C:\Windows\SysWOW64\PING.EXE
        ping 127.0.0.1 -n 48
        3⤵
        • Runs ping.exe
        PID:3464
      • C:\Windows\SysWOW64\PING.EXE
        ping 127.0.0.1 -n 48
        3⤵
        • Runs ping.exe
        PID:4124
      • C:\Users\Admin\AppData\Local\htv.exe
        "C:\Users\Admin\AppData\Local\htv.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious use of AdjustPrivilegeToken
        PID:1172

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

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        Downloads

        • C:\Users\Admin\AppData\Local\htv.exe

          Filesize

          1.8MB

          MD5

          26fa36b587e07bde2d99f329ba553e9c

          SHA1

          5d2b42a954666f85fcf91475c3ec361c4c254764

          SHA256

          511bd4f1051444242dda8ae6df80720106a6b4d60eab89658baffb142affe730

          SHA512

          413bf79332518b6af56cc23c162d2b981a94744e463b1a01ab8f3699c681cad077d177e3213132d1791969810bc7065667b331deb4f51570a31c96a625b4c694

        • C:\Users\Admin\AppData\Local\htv.exe

          Filesize

          1.8MB

          MD5

          26fa36b587e07bde2d99f329ba553e9c

          SHA1

          5d2b42a954666f85fcf91475c3ec361c4c254764

          SHA256

          511bd4f1051444242dda8ae6df80720106a6b4d60eab89658baffb142affe730

          SHA512

          413bf79332518b6af56cc23c162d2b981a94744e463b1a01ab8f3699c681cad077d177e3213132d1791969810bc7065667b331deb4f51570a31c96a625b4c694

        • memory/1172-158-0x0000000006440000-0x0000000006450000-memory.dmp

          Filesize

          64KB

        • memory/1172-157-0x0000000006440000-0x0000000006450000-memory.dmp

          Filesize

          64KB

        • memory/1172-156-0x0000000006440000-0x0000000006450000-memory.dmp

          Filesize

          64KB

        • memory/1172-155-0x0000000006440000-0x0000000006450000-memory.dmp

          Filesize

          64KB

        • memory/1172-154-0x0000000006440000-0x0000000006450000-memory.dmp

          Filesize

          64KB

        • memory/1172-153-0x0000000006440000-0x0000000006450000-memory.dmp

          Filesize

          64KB

        • memory/1172-152-0x0000000000020000-0x00000000001F8000-memory.dmp

          Filesize

          1.8MB

        • memory/4376-138-0x0000000007430000-0x000000000743A000-memory.dmp

          Filesize

          40KB

        • memory/4376-143-0x0000000006310000-0x0000000006320000-memory.dmp

          Filesize

          64KB

        • memory/4376-144-0x0000000006310000-0x0000000006320000-memory.dmp

          Filesize

          64KB

        • memory/4376-145-0x0000000006310000-0x0000000006320000-memory.dmp

          Filesize

          64KB

        • memory/4376-142-0x0000000006310000-0x0000000006320000-memory.dmp

          Filesize

          64KB

        • memory/4376-141-0x0000000006310000-0x0000000006320000-memory.dmp

          Filesize

          64KB

        • memory/4376-140-0x0000000006310000-0x0000000006320000-memory.dmp

          Filesize

          64KB

        • memory/4376-139-0x0000000006310000-0x0000000006320000-memory.dmp

          Filesize

          64KB

        • memory/4376-133-0x00000000000D0000-0x00000000002A8000-memory.dmp

          Filesize

          1.8MB

        • memory/4376-137-0x0000000006310000-0x0000000006320000-memory.dmp

          Filesize

          64KB

        • memory/4376-136-0x0000000005450000-0x00000000054EC000-memory.dmp

          Filesize

          624KB

        • memory/4376-135-0x0000000005310000-0x00000000053A2000-memory.dmp

          Filesize

          584KB

        • memory/4376-134-0x0000000005810000-0x0000000005DB4000-memory.dmp

          Filesize

          5.6MB