Analysis

  • max time kernel
    91s
  • max time network
    157s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220901-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-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
  • Modifies file permissions 1 TTPs 4 IoCs
  • Installs/modifies Browser Helper Object 2 TTPs 3 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 21 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:4932
    • 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:4368
      • 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:4400
      • C:\Windows\SysWOW64\icacls.exe
        icacls C:\Windows\SysWOW64\wshtcpip.dll /grant administrators:F
        3⤵
        • Possible privilege escalation attempt
        • Modifies file permissions
        PID:792
    • 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:1544
      • 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:212
      • C:\Windows\SysWOW64\icacls.exe
        icacls C:\Windows\SysWOW64\midimap.dll /grant administrators:F
        3⤵
        • Possible privilege escalation attempt
        • Modifies file permissions
        PID:3092
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c C:\Users\Admin\AppData\Local\Temp\ahnmove.bat
      2⤵
        PID:1480

    Network

    MITRE ATT&CK Matrix ATT&CK v6

    Persistence

    Registry Run Keys / Startup Folder

    1
    T1060

    Browser Extensions

    1
    T1176

    Defense Evasion

    Modify Registry

    2
    T1112

    File Permissions Modification

    1
    T1222

    Discovery

    Query Registry

    1
    T1012

    Peripheral Device Discovery

    1
    T1120

    System Information Discovery

    1
    T1082

    Replay Monitor

    Loading Replay Monitor...

    Downloads

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

      181B

      MD5

      3403710eb86fa72cabbcebc0f863d205

      SHA1

      5e0f26806bde2b030a15b363fc7b3dbea842393c

      SHA256

      c5914a979ddea6d07f2b1c3e750ca106d4795ae4b829a0504fadec7781d09bac

      SHA512

      5b3fb784d57290baa3dbd3017228d6acceaad74e6afedc18be9a843c7166d383d197ec7410e37d13d24055e83ca2f04daaf58b3f50b6735fc072df2137a1f56c

    • memory/212-140-0x0000000000000000-mapping.dmp
    • memory/792-138-0x0000000000000000-mapping.dmp
    • memory/1480-142-0x0000000000000000-mapping.dmp
    • memory/1544-139-0x0000000000000000-mapping.dmp
    • memory/3092-141-0x0000000000000000-mapping.dmp
    • memory/4368-136-0x0000000000000000-mapping.dmp
    • memory/4400-137-0x0000000000000000-mapping.dmp
    • memory/4932-135-0x0000000000540000-0x0000000000560000-memory.dmp
      Filesize

      128KB

    • memory/4932-132-0x0000000001000000-0x0000000001C56000-memory.dmp
      Filesize

      12.3MB

    • memory/4932-134-0x0000000001000000-0x0000000001C56000-memory.dmp
      Filesize

      12.3MB

    • memory/4932-133-0x0000000000540000-0x0000000000560000-memory.dmp
      Filesize

      128KB

    • memory/4932-144-0x0000000001000000-0x0000000001C56000-memory.dmp
      Filesize

      12.3MB