Analysis

  • max time kernel
    112s
  • max time network
    91s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    27-11-2022 15:06

General

  • Target

    bb6737fc2dcb136b6a1c28ea6bc1a16e9feeb2266949e41607dd5d2562a37de3.exe

  • Size

    847KB

  • MD5

    e6129848fc34f8e3b021abb346d6c398

  • SHA1

    05da7c1a5008891b6242c60b2e426f4edefe06be

  • SHA256

    bb6737fc2dcb136b6a1c28ea6bc1a16e9feeb2266949e41607dd5d2562a37de3

  • SHA512

    5091ec97b4c559d936c0196ba7d7e8cb6371461fc820bcd6ed4fb9b07a03d56e74f1d10ede87a5cdcc8d42d427699a7b6c2a107ab8cd0c361920e9fc66a1337b

  • SSDEEP

    12288:+PdvxyWzoUaUmN68LAt4WlACSORF9RmZUO2nu19nOmCpYhY6CBTX:+LyvF5NV+MORFrQ119nOVOhVk

Malware Config

Signatures

  • Drops file in Drivers directory 1 IoCs
  • Possible privilege escalation attempt 4 IoCs
  • Sets service image path in registry 2 TTPs 1 IoCs
  • Deletes itself 1 IoCs
  • Modifies file permissions 1 TTPs 4 IoCs
  • Installs/modifies Browser Helper Object 2 TTPs 4 IoCs

    BHOs are DLL modules which act as plugins for Internet Explorer.

  • Maps connected drives based on registry 3 TTPs 3 IoCs

    Disk information is often read in order to detect sandboxing environments.

  • Drops file in System32 directory 4 IoCs
  • Modifies registry class 4 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: LoadsDriver 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 28 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\bb6737fc2dcb136b6a1c28ea6bc1a16e9feeb2266949e41607dd5d2562a37de3.exe
    "C:\Users\Admin\AppData\Local\Temp\bb6737fc2dcb136b6a1c28ea6bc1a16e9feeb2266949e41607dd5d2562a37de3.exe"
    1⤵
    • Drops file in Drivers directory
    • Sets service image path in registry
    • Installs/modifies Browser Helper Object
    • Maps connected drives based on registry
    • Drops file in System32 directory
    • Modifies registry class
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: LoadsDriver
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:968
    • C:\Windows\SysWOW64\cmd.exe
      cmd.exe /c takeown /f C:\Windows\SysWOW64\wshtcpip.dll && icacls C:\Windows\SysWOW64\wshtcpip.dll /grant administrators:F
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1992
      • C:\Windows\SysWOW64\takeown.exe
        takeown /f C:\Windows\SysWOW64\wshtcpip.dll
        3⤵
        • Possible privilege escalation attempt
        • Modifies file permissions
        • Suspicious use of AdjustPrivilegeToken
        PID:632
      • C:\Windows\SysWOW64\icacls.exe
        icacls C:\Windows\SysWOW64\wshtcpip.dll /grant administrators:F
        3⤵
        • Possible privilege escalation attempt
        • Modifies file permissions
        PID:1532
    • C:\Windows\SysWOW64\cmd.exe
      cmd.exe /c takeown /f C:\Windows\SysWOW64\midimap.dll && icacls C:\Windows\SysWOW64\midimap.dll /grant administrators:F
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1448
      • C:\Windows\SysWOW64\takeown.exe
        takeown /f C:\Windows\SysWOW64\midimap.dll
        3⤵
        • Possible privilege escalation attempt
        • Modifies file permissions
        • Suspicious use of AdjustPrivilegeToken
        PID:1196
      • C:\Windows\SysWOW64\icacls.exe
        icacls C:\Windows\SysWOW64\midimap.dll /grant administrators:F
        3⤵
        • Possible privilege escalation attempt
        • Modifies file permissions
        PID:1724
    • C:\Windows\SysWOW64\cmd.exe
      cmd /c C:\Users\Admin\AppData\Local\Temp\ahnmove.bat
      2⤵
      • Deletes itself
      PID:668

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\ahnmove.bat

    Filesize

    181B

    MD5

    3403710eb86fa72cabbcebc0f863d205

    SHA1

    5e0f26806bde2b030a15b363fc7b3dbea842393c

    SHA256

    c5914a979ddea6d07f2b1c3e750ca106d4795ae4b829a0504fadec7781d09bac

    SHA512

    5b3fb784d57290baa3dbd3017228d6acceaad74e6afedc18be9a843c7166d383d197ec7410e37d13d24055e83ca2f04daaf58b3f50b6735fc072df2137a1f56c

  • memory/632-60-0x0000000000000000-mapping.dmp

  • memory/668-65-0x0000000000000000-mapping.dmp

  • memory/968-57-0x0000000001000000-0x0000000001C56000-memory.dmp

    Filesize

    12.3MB

  • memory/968-58-0x00000000002A0000-0x00000000002C0000-memory.dmp

    Filesize

    128KB

  • memory/968-54-0x0000000076831000-0x0000000076833000-memory.dmp

    Filesize

    8KB

  • memory/968-56-0x00000000002A0000-0x00000000002C0000-memory.dmp

    Filesize

    128KB

  • memory/968-55-0x0000000001000000-0x0000000001C56000-memory.dmp

    Filesize

    12.3MB

  • memory/968-67-0x0000000001000000-0x0000000001C56000-memory.dmp

    Filesize

    12.3MB

  • memory/1196-63-0x0000000000000000-mapping.dmp

  • memory/1448-62-0x0000000000000000-mapping.dmp

  • memory/1532-61-0x0000000000000000-mapping.dmp

  • memory/1724-64-0x0000000000000000-mapping.dmp

  • memory/1992-59-0x0000000000000000-mapping.dmp