Analysis

  • max time kernel
    149s
  • max time network
    125s
  • platform
    windows7_x64
  • resource
    win7-20221111-en
  • resource tags

    arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
  • submitted
    28-11-2022 07:51

General

  • Target

    f970c4c1736ba1245d59eaee85cf46f1b17850ed325899bc37c7e289e53b440d.exe

  • Size

    834KB

  • MD5

    e900078e22e49c49fa3feff2902cebfb

  • SHA1

    47b9dc323ab7c917df14a1877b4a7b4ac260d9b0

  • SHA256

    f970c4c1736ba1245d59eaee85cf46f1b17850ed325899bc37c7e289e53b440d

  • SHA512

    8dca4c52c3b60f41c660467fbe5189fc1de1c4e2dd6c72322a6b4ccda199261d5dcb3c2279944116e53ca33b5a9bdcdd49807cff660cabc8c831f199c36830dc

  • SSDEEP

    24576:w3LZE7QjJrNQwhnBS9sMrbpf3IS5zUXpCyE8:wby7QFrfqCM5P87

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\f970c4c1736ba1245d59eaee85cf46f1b17850ed325899bc37c7e289e53b440d.exe
    "C:\Users\Admin\AppData\Local\Temp\f970c4c1736ba1245d59eaee85cf46f1b17850ed325899bc37c7e289e53b440d.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:1352
    • 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:108
      • 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:764
      • C:\Windows\SysWOW64\icacls.exe
        icacls C:\Windows\SysWOW64\wshtcpip.dll /grant administrators:F
        3⤵
        • Possible privilege escalation attempt
        • Modifies file permissions
        PID:1200
    • 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:824
      • 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:1624
      • C:\Windows\SysWOW64\icacls.exe
        icacls C:\Windows\SysWOW64\midimap.dll /grant administrators:F
        3⤵
        • Possible privilege escalation attempt
        • Modifies file permissions
        PID:2000
    • C:\Windows\SysWOW64\cmd.exe
      cmd /c C:\Users\Admin\AppData\Local\Temp\ahnmove.bat
      2⤵
      • Deletes itself
      PID:984

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

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

    Filesize

    181B

    MD5

    c17945cb36fdd1682863c91cc6d6aa04

    SHA1

    d0ca8de2500ca63f2580f168f5d78879931da6e8

    SHA256

    bd7269cedf6d448d4a7042c07f599e42f3ddc7cf4f0b63793694cfa8cc2df23a

    SHA512

    59e10b0bbdc55da704cfb0fe9d7685184a2f6e8e0dc0291f98eaa55a9b3305dd6629776574fa2ce70c0a1026d717b7e18a2f04063801b42110ddcc8adbb4a4bf

  • memory/108-59-0x0000000000000000-mapping.dmp

  • memory/764-60-0x0000000000000000-mapping.dmp

  • memory/824-62-0x0000000000000000-mapping.dmp

  • memory/984-65-0x0000000000000000-mapping.dmp

  • memory/1200-61-0x0000000000000000-mapping.dmp

  • memory/1352-57-0x0000000001000000-0x0000000001C36000-memory.dmp

    Filesize

    12.2MB

  • memory/1352-58-0x00000000002A0000-0x00000000002C0000-memory.dmp

    Filesize

    128KB

  • memory/1352-54-0x0000000075F51000-0x0000000075F53000-memory.dmp

    Filesize

    8KB

  • memory/1352-56-0x00000000002A0000-0x00000000002C0000-memory.dmp

    Filesize

    128KB

  • memory/1352-55-0x0000000001000000-0x0000000001C36000-memory.dmp

    Filesize

    12.2MB

  • memory/1352-67-0x0000000001000000-0x0000000001C36000-memory.dmp

    Filesize

    12.2MB

  • memory/1624-63-0x0000000000000000-mapping.dmp

  • memory/2000-64-0x0000000000000000-mapping.dmp