Analysis

  • max time kernel
    109s
  • max time network
    80s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    06-11-2022 08:46

General

  • Target

    5e0534239f04a03e7a86a9230c77753ac3a87c1b5f36eb82faa8cf55846f0cfb.exe

  • Size

    329KB

  • MD5

    0a3d897064bc8e8f8ead808689a7ef80

  • SHA1

    6532f8bfe1d1fbcabbc146d5f84d64dd68301c94

  • SHA256

    5e0534239f04a03e7a86a9230c77753ac3a87c1b5f36eb82faa8cf55846f0cfb

  • SHA512

    434fc32a74537205cd6de0aeaf82678e9dcc137dec87fa320386bd4d84d76576ee9c0d8526b3fc560aaea91990b02d1e97b1c8160250c6c7badbf5fdd716748b

  • SSDEEP

    6144:YqpxvlACym6wGGWFGDwZyoJ3fzBeM6SpktqHQI6mVk8cL3/CzYjsHh:YqjvlA06wLBHAf9eMvHwmVkhL36zYwHh

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\5e0534239f04a03e7a86a9230c77753ac3a87c1b5f36eb82faa8cf55846f0cfb.exe
    "C:\Users\Admin\AppData\Local\Temp\5e0534239f04a03e7a86a9230c77753ac3a87c1b5f36eb82faa8cf55846f0cfb.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:1968
    • 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:1892
      • 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:1172
      • C:\Windows\SysWOW64\icacls.exe
        icacls C:\Windows\SysWOW64\wshtcpip.dll /grant administrators:F
        3⤵
        • Possible privilege escalation attempt
        • Modifies file permissions
        PID:1676
    • 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:1708
      • 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:592
      • C:\Windows\SysWOW64\icacls.exe
        icacls C:\Windows\SysWOW64\midimap.dll /grant administrators:F
        3⤵
        • Possible privilege escalation attempt
        • Modifies file permissions
        PID:664
    • C:\Windows\SysWOW64\cmd.exe
      cmd /c C:\Users\Admin\AppData\Local\Temp\ahnmove.bat
      2⤵
      • Deletes itself
      PID:1912

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

    69dc86098b55f2d298250d14088f017f

    SHA1

    e945938c90cedaa580b85306666f96d9211a316d

    SHA256

    ece1a44f77f1ea604929c6a7ca120341114447342784090ce7e62cc4ce121c44

    SHA512

    254baab5f6e4849de7608c987630aa1339c4ab65d211e816b7d44e0c9bc2d58541a0d49380174f36d7c79d940049a5e4f2769d1d9d85b20934ef870c21ebd779

  • memory/592-63-0x0000000000000000-mapping.dmp
  • memory/664-64-0x0000000000000000-mapping.dmp
  • memory/1172-60-0x0000000000000000-mapping.dmp
  • memory/1676-61-0x0000000000000000-mapping.dmp
  • memory/1708-62-0x0000000000000000-mapping.dmp
  • memory/1892-59-0x0000000000000000-mapping.dmp
  • memory/1912-65-0x0000000000000000-mapping.dmp
  • memory/1968-58-0x00000000001B0000-0x00000000001D0000-memory.dmp
    Filesize

    128KB

  • memory/1968-54-0x0000000075141000-0x0000000075143000-memory.dmp
    Filesize

    8KB

  • memory/1968-57-0x0000000001000000-0x0000000001168000-memory.dmp
    Filesize

    1.4MB

  • memory/1968-56-0x00000000001B0000-0x00000000001D0000-memory.dmp
    Filesize

    128KB

  • memory/1968-66-0x0000000001000000-0x0000000001168000-memory.dmp
    Filesize

    1.4MB

  • memory/1968-55-0x0000000001000000-0x0000000001168000-memory.dmp
    Filesize

    1.4MB