Analysis

  • max time kernel
    140s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    06-11-2022 23:14

General

  • Target

    fa2666928980d3f0f655b252e41cd4c57399aa368a5e6f9d57282c5440dd6fa6.exe

  • Size

    68KB

  • MD5

    0d0d544e4f10081806e7afe1f4aba1d6

  • SHA1

    63f611feffb11ba7bbb415742ea0f405c0f2adf1

  • SHA256

    fa2666928980d3f0f655b252e41cd4c57399aa368a5e6f9d57282c5440dd6fa6

  • SHA512

    f06ed1e3f3f88ff805641bedab4ee1b3f2fb8f0f70224aea086bf0772cea88e97da69dc54487d4bbb05c7bbf03281c428ffe5e6bf2e9796a5041d6e3edcab412

  • SSDEEP

    768:GibQIp1fB4vOfPe1y8egD9OgKnjM+JqW7tQ8GrBmSODbyR4kILpXrCK8IOqe2VXy:jbQIs90j128GrB7OnyR4T8IOj2ly

Score
8/10

Malware Config

Signatures

  • Possible privilege escalation attempt 34 IoCs
  • Modifies file permissions 1 TTPs 34 IoCs
  • Drops file in System32 directory 6 IoCs
  • Suspicious use of AdjustPrivilegeToken 16 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\fa2666928980d3f0f655b252e41cd4c57399aa368a5e6f9d57282c5440dd6fa6.exe
    "C:\Users\Admin\AppData\Local\Temp\fa2666928980d3f0f655b252e41cd4c57399aa368a5e6f9d57282c5440dd6fa6.exe"
    1⤵
    • Drops file in System32 directory
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:3284
    • C:\Windows\SysWOW64\takeown.exe
      C:\Windows\system32\takeown.exe /f "C:\Windows\system32\lnjc.exe"
      2⤵
      • Possible privilege escalation attempt
      • Modifies file permissions
      PID:2588
    • C:\Windows\SysWOW64\icacls.exe
      C:\Windows\system32\icacls.exe "C:\Windows\system32\lnjc.exe" /grant SYSTEM:F
      2⤵
      • Possible privilege escalation attempt
      • Modifies file permissions
      PID:2128
    • C:\Windows\SysWOW64\takeown.exe
      takeown.exe /f "C:\Windows\System32\cmd.exe"
      2⤵
      • Possible privilege escalation attempt
      • Modifies file permissions
      • Suspicious use of AdjustPrivilegeToken
      PID:2684
    • C:\Windows\SysWOW64\icacls.exe
      icacls.exe "" /grant Users:F
      2⤵
      • Possible privilege escalation attempt
      • Modifies file permissions
      PID:4220
    • C:\Windows\SysWOW64\takeown.exe
      takeown.exe /f "C:\Windows\System32\cmd.exe"
      2⤵
      • Possible privilege escalation attempt
      • Modifies file permissions
      • Suspicious use of AdjustPrivilegeToken
      PID:4532
    • C:\Windows\SysWOW64\icacls.exe
      icacls.exe "" /grant Users:F
      2⤵
      • Possible privilege escalation attempt
      • Modifies file permissions
      PID:4132
    • C:\Windows\SysWOW64\takeown.exe
      takeown.exe /f "C:\Windows\System32\ftp.exe"
      2⤵
      • Possible privilege escalation attempt
      • Modifies file permissions
      • Suspicious use of AdjustPrivilegeToken
      PID:4188
    • C:\Windows\SysWOW64\icacls.exe
      icacls.exe "" /grant Users:F
      2⤵
      • Possible privilege escalation attempt
      • Modifies file permissions
      PID:232
    • C:\Windows\SysWOW64\takeown.exe
      takeown.exe /f "C:\Windows\System32\ftp.exe"
      2⤵
      • Possible privilege escalation attempt
      • Modifies file permissions
      • Suspicious use of AdjustPrivilegeToken
      PID:3548
    • C:\Windows\SysWOW64\icacls.exe
      icacls.exe "" /grant Users:F
      2⤵
      • Possible privilege escalation attempt
      • Modifies file permissions
      PID:5060
    • C:\Windows\SysWOW64\takeown.exe
      takeown.exe /f "C:\Windows\System32\wscript.exe"
      2⤵
      • Possible privilege escalation attempt
      • Modifies file permissions
      • Suspicious use of AdjustPrivilegeToken
      PID:4444
    • C:\Windows\SysWOW64\icacls.exe
      icacls.exe "" /grant Users:F
      2⤵
      • Possible privilege escalation attempt
      • Modifies file permissions
      PID:4016
    • C:\Windows\SysWOW64\takeown.exe
      takeown.exe /f "C:\Windows\System32\wscript.exe"
      2⤵
      • Possible privilege escalation attempt
      • Modifies file permissions
      • Suspicious use of AdjustPrivilegeToken
      PID:1224
    • C:\Windows\SysWOW64\icacls.exe
      icacls.exe "" /grant Users:F
      2⤵
      • Possible privilege escalation attempt
      • Modifies file permissions
      PID:3920
    • C:\Windows\SysWOW64\takeown.exe
      takeown.exe /f "C:\Windows\System32\cscript.exe"
      2⤵
      • Possible privilege escalation attempt
      • Modifies file permissions
      • Suspicious use of AdjustPrivilegeToken
      PID:3220
    • C:\Windows\SysWOW64\icacls.exe
      icacls.exe "" /grant Users:F
      2⤵
      • Possible privilege escalation attempt
      • Modifies file permissions
      PID:996
    • C:\Windows\SysWOW64\takeown.exe
      takeown.exe /f "C:\Windows\System32\cscript.exe"
      2⤵
      • Possible privilege escalation attempt
      • Modifies file permissions
      • Suspicious use of AdjustPrivilegeToken
      PID:3436
    • C:\Windows\SysWOW64\icacls.exe
      icacls.exe "" /grant Users:F
      2⤵
      • Possible privilege escalation attempt
      • Modifies file permissions
      PID:332
    • C:\Windows\SysWOW64\takeown.exe
      takeown.exe /f "C:\Windows\SysWOW64\cmd.exe"
      2⤵
      • Possible privilege escalation attempt
      • Modifies file permissions
      • Suspicious use of AdjustPrivilegeToken
      PID:3384
    • C:\Windows\SysWOW64\icacls.exe
      icacls.exe "" /grant Users:F
      2⤵
      • Possible privilege escalation attempt
      • Modifies file permissions
      PID:5012
    • C:\Windows\SysWOW64\takeown.exe
      takeown.exe /f "C:\Windows\SysWOW64\cmd.exe"
      2⤵
      • Possible privilege escalation attempt
      • Modifies file permissions
      • Suspicious use of AdjustPrivilegeToken
      PID:2604
    • C:\Windows\SysWOW64\icacls.exe
      icacls.exe "" /grant Users:F
      2⤵
      • Possible privilege escalation attempt
      • Modifies file permissions
      PID:3572
    • C:\Windows\SysWOW64\takeown.exe
      takeown.exe /f "C:\Windows\SysWOW64\ftp.exe"
      2⤵
      • Possible privilege escalation attempt
      • Modifies file permissions
      • Suspicious use of AdjustPrivilegeToken
      PID:1232
    • C:\Windows\SysWOW64\icacls.exe
      icacls.exe "" /grant Users:F
      2⤵
      • Possible privilege escalation attempt
      • Modifies file permissions
      PID:1520
    • C:\Windows\SysWOW64\takeown.exe
      takeown.exe /f "C:\Windows\SysWOW64\ftp.exe"
      2⤵
      • Possible privilege escalation attempt
      • Modifies file permissions
      • Suspicious use of AdjustPrivilegeToken
      PID:4724
    • C:\Windows\SysWOW64\icacls.exe
      icacls.exe "" /grant Users:F
      2⤵
      • Possible privilege escalation attempt
      • Modifies file permissions
      PID:3968
    • C:\Windows\SysWOW64\takeown.exe
      takeown.exe /f "C:\Windows\SysWOW64\wscript.exe"
      2⤵
      • Possible privilege escalation attempt
      • Modifies file permissions
      • Suspicious use of AdjustPrivilegeToken
      PID:1208
    • C:\Windows\SysWOW64\icacls.exe
      icacls.exe "" /grant Users:F
      2⤵
      • Possible privilege escalation attempt
      • Modifies file permissions
      PID:680
    • C:\Windows\SysWOW64\takeown.exe
      takeown.exe /f "C:\Windows\SysWOW64\wscript.exe"
      2⤵
      • Possible privilege escalation attempt
      • Modifies file permissions
      • Suspicious use of AdjustPrivilegeToken
      PID:1416
    • C:\Windows\SysWOW64\icacls.exe
      icacls.exe "" /grant Users:F
      2⤵
      • Possible privilege escalation attempt
      • Modifies file permissions
      PID:2272
    • C:\Windows\SysWOW64\takeown.exe
      takeown.exe /f "C:\Windows\SysWOW64\cscript.exe"
      2⤵
      • Possible privilege escalation attempt
      • Modifies file permissions
      • Suspicious use of AdjustPrivilegeToken
      PID:4344
    • C:\Windows\SysWOW64\icacls.exe
      icacls.exe "" /grant Users:F
      2⤵
      • Possible privilege escalation attempt
      • Modifies file permissions
      PID:3552
    • C:\Windows\SysWOW64\takeown.exe
      takeown.exe /f "C:\Windows\SysWOW64\cscript.exe"
      2⤵
      • Possible privilege escalation attempt
      • Modifies file permissions
      • Suspicious use of AdjustPrivilegeToken
      PID:3596
    • C:\Windows\SysWOW64\icacls.exe
      icacls.exe "" /grant Users:F
      2⤵
      • Possible privilege escalation attempt
      • Modifies file permissions
      PID:4644

Network

MITRE ATT&CK Matrix ATT&CK v6

Defense Evasion

File Permissions Modification

1
T1222

Replay Monitor

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Downloads

  • C:\Windows\SysWOW64\lnjc.exe
    Filesize

    68KB

    MD5

    0d0d544e4f10081806e7afe1f4aba1d6

    SHA1

    63f611feffb11ba7bbb415742ea0f405c0f2adf1

    SHA256

    fa2666928980d3f0f655b252e41cd4c57399aa368a5e6f9d57282c5440dd6fa6

    SHA512

    f06ed1e3f3f88ff805641bedab4ee1b3f2fb8f0f70224aea086bf0772cea88e97da69dc54487d4bbb05c7bbf03281c428ffe5e6bf2e9796a5041d6e3edcab412

  • memory/232-142-0x0000000000000000-mapping.dmp
  • memory/332-152-0x0000000000000000-mapping.dmp
  • memory/680-162-0x0000000000000000-mapping.dmp
  • memory/996-150-0x0000000000000000-mapping.dmp
  • memory/1208-161-0x0000000000000000-mapping.dmp
  • memory/1224-147-0x0000000000000000-mapping.dmp
  • memory/1232-157-0x0000000000000000-mapping.dmp
  • memory/1416-163-0x0000000000000000-mapping.dmp
  • memory/1520-158-0x0000000000000000-mapping.dmp
  • memory/2128-136-0x0000000000000000-mapping.dmp
  • memory/2272-164-0x0000000000000000-mapping.dmp
  • memory/2588-134-0x0000000000000000-mapping.dmp
  • memory/2604-155-0x0000000000000000-mapping.dmp
  • memory/2684-137-0x0000000000000000-mapping.dmp
  • memory/3220-149-0x0000000000000000-mapping.dmp
  • memory/3384-153-0x0000000000000000-mapping.dmp
  • memory/3436-151-0x0000000000000000-mapping.dmp
  • memory/3548-143-0x0000000000000000-mapping.dmp
  • memory/3552-166-0x0000000000000000-mapping.dmp
  • memory/3572-156-0x0000000000000000-mapping.dmp
  • memory/3596-167-0x0000000000000000-mapping.dmp
  • memory/3920-148-0x0000000000000000-mapping.dmp
  • memory/3968-160-0x0000000000000000-mapping.dmp
  • memory/4016-146-0x0000000000000000-mapping.dmp
  • memory/4132-140-0x0000000000000000-mapping.dmp
  • memory/4188-141-0x0000000000000000-mapping.dmp
  • memory/4220-138-0x0000000000000000-mapping.dmp
  • memory/4344-165-0x0000000000000000-mapping.dmp
  • memory/4444-145-0x0000000000000000-mapping.dmp
  • memory/4532-139-0x0000000000000000-mapping.dmp
  • memory/4644-168-0x0000000000000000-mapping.dmp
  • memory/4724-159-0x0000000000000000-mapping.dmp
  • memory/5012-154-0x0000000000000000-mapping.dmp
  • memory/5060-144-0x0000000000000000-mapping.dmp