Analysis

  • max time kernel
    63s
  • max time network
    49s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    08-11-2022 20:44

General

  • Target

    fc1ab9a3235ff911611dc981a2d2287da56b2c88793968e8e18fc58fbe99a94d.exe

  • Size

    329KB

  • MD5

    0ba3d397fbc1925b85f6cea8686dab40

  • SHA1

    0fd696ee44e5f78b8a52a309cb496934f1e8b6b8

  • SHA256

    fc1ab9a3235ff911611dc981a2d2287da56b2c88793968e8e18fc58fbe99a94d

  • SHA512

    c552b14caaa149a961acf667c871efd8b9ed003fefa332d5ded665614762a17e577a1ea13d291ae2ec5135343290afba0d01e6cc91138d2c6b3032c1aee74c3b

  • SSDEEP

    6144:MqpxvlACym6wGGWFGDwZyoJ3fzBeM6SpktqHQI6mVk8cL3/CzYjsHh:MqjvlA06wLBHAf9eMvHwmVkhL36zYwHh

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\fc1ab9a3235ff911611dc981a2d2287da56b2c88793968e8e18fc58fbe99a94d.exe
    "C:\Users\Admin\AppData\Local\Temp\fc1ab9a3235ff911611dc981a2d2287da56b2c88793968e8e18fc58fbe99a94d.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:1184
    • 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:280
      • 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:520
      • C:\Windows\SysWOW64\icacls.exe
        icacls C:\Windows\SysWOW64\wshtcpip.dll /grant administrators:F
        3⤵
        • Possible privilege escalation attempt
        • Modifies file permissions
        PID:1640
    • 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:1696
      • 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:1764
      • C:\Windows\SysWOW64\icacls.exe
        icacls C:\Windows\SysWOW64\midimap.dll /grant administrators:F
        3⤵
        • Possible privilege escalation attempt
        • Modifies file permissions
        PID:1796
    • C:\Windows\SysWOW64\cmd.exe
      cmd /c C:\Users\Admin\AppData\Local\Temp\ahnmove.bat
      2⤵
      • Deletes itself
      PID:1292

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

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

    Filesize

    181B

    MD5

    a960098b3c11dc3900189fe4d27abe62

    SHA1

    e1985c922ba7c2d57d74fd827a2ac09fef8b0ed9

    SHA256

    299efab2745e2fa0df2d81ebf3692c3f7f256121a639fb3fba52b1060caeb6d7

    SHA512

    007699433e5a83ab7b9dd6e434397271df420f57e89d46414215818c844c4d740701a6217bcbdab93720dff32b8a7667a56d2ad9ad82ef9954937e10d82c0da3

  • memory/280-59-0x0000000000000000-mapping.dmp

  • memory/520-60-0x0000000000000000-mapping.dmp

  • memory/1184-57-0x0000000001000000-0x0000000001168000-memory.dmp

    Filesize

    1.4MB

  • memory/1184-58-0x00000000001B0000-0x00000000001D0000-memory.dmp

    Filesize

    128KB

  • memory/1184-54-0x0000000074BB1000-0x0000000074BB3000-memory.dmp

    Filesize

    8KB

  • memory/1184-56-0x00000000001B0000-0x00000000001D0000-memory.dmp

    Filesize

    128KB

  • memory/1184-66-0x0000000001000000-0x0000000001168000-memory.dmp

    Filesize

    1.4MB

  • memory/1184-55-0x0000000001000000-0x0000000001168000-memory.dmp

    Filesize

    1.4MB

  • memory/1292-65-0x0000000000000000-mapping.dmp

  • memory/1640-61-0x0000000000000000-mapping.dmp

  • memory/1696-62-0x0000000000000000-mapping.dmp

  • memory/1764-63-0x0000000000000000-mapping.dmp

  • memory/1796-64-0x0000000000000000-mapping.dmp