Analysis

  • max time kernel
    151s
  • max time network
    154s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20221111-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
  • submitted
    19-11-2022 03:55

General

  • Target

    577573301757bb1158a2ca8a893a2757cf2ccc17ecea701946fcce57409eb4a2.exe

  • Size

    350KB

  • MD5

    183c5dad4bfd2535b75af379feb807c0

  • SHA1

    8cec1f3da6c5ebc3407228927b3419fac64381a2

  • SHA256

    577573301757bb1158a2ca8a893a2757cf2ccc17ecea701946fcce57409eb4a2

  • SHA512

    0f2aade511941d18c1db522a7f89191745c1defceffe64f298e85c916fb29fb7dc401fd723925ee9ce02b61d70a561d9fb442075f1b5998c502151c81239161f

  • SSDEEP

    6144:PyXu7IEBSsQ9ElMwm60lmqs7MTRGA3h3GVqdppJXEGhBukJF/KAwxFUOWdEmh:P3BdQLL4BE93NGVYZX9BukJlwxSJdEm

Malware Config

Signatures

  • Drops file in Drivers directory 2 IoCs
  • Possible privilege escalation attempt 2 IoCs
  • Sets service image path in registry 2 TTPs 2 IoCs
  • UPX packed file 3 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • Modifies file permissions 1 TTPs 2 IoCs
  • Installs/modifies Browser Helper Object 2 TTPs 3 IoCs

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

  • Drops file in System32 directory 5 IoCs
  • Modifies registry class 4 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: LoadsDriver 5 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 12 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\577573301757bb1158a2ca8a893a2757cf2ccc17ecea701946fcce57409eb4a2.exe
    "C:\Users\Admin\AppData\Local\Temp\577573301757bb1158a2ca8a893a2757cf2ccc17ecea701946fcce57409eb4a2.exe"
    1⤵
    • Drops file in Drivers directory
    • Sets service image path in registry
    • Installs/modifies Browser Helper Object
    • Drops file in System32 directory
    • Modifies registry class
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: LoadsDriver
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2004
    • 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:768
      • 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:1348
      • C:\Windows\SysWOW64\icacls.exe
        icacls C:\Windows\SysWOW64\wshtcpip.dll /grant administrators:F
        3⤵
        • Possible privilege escalation attempt
        • Modifies file permissions
        PID:4276
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c C:\Users\Admin\AppData\Local\Temp\ahnmove.bat
      2⤵
        PID:4972

    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

    Replay Monitor

    Loading Replay Monitor...

    Downloads

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

      181B

      MD5

      b68f5a984bb8dd9484f78ec74900e187

      SHA1

      42c73c714e4d4aac01eda56f44d3a13229423c17

      SHA256

      e8acd166b70f5270bc3422cbef4e202793dd0dc82b855af51db973daa0355fc3

      SHA512

      b9ce1f0960355b6da2d0755774bd378831d913047c52c2d0376b8186d1db53c2146202e84020e53fc00f12eb191fec1ed69859d315d2436ba8d1a1b484ddac36

    • memory/768-134-0x0000000000000000-mapping.dmp
    • memory/1348-135-0x0000000000000000-mapping.dmp
    • memory/2004-132-0x0000000001000000-0x000000000112D000-memory.dmp
      Filesize

      1.2MB

    • memory/2004-133-0x0000000001000000-0x000000000112D000-memory.dmp
      Filesize

      1.2MB

    • memory/2004-138-0x0000000001000000-0x000000000112D000-memory.dmp
      Filesize

      1.2MB

    • memory/4276-136-0x0000000000000000-mapping.dmp
    • memory/4972-137-0x0000000000000000-mapping.dmp