Analysis

  • max time kernel
    157s
  • max time network
    169s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    27-11-2022 15:03

General

  • Target

    4bcee96b572888f92d70cdc796b65fff18947ec6b59e5eeb6636f66c3442a96b.exe

  • Size

    1.0MB

  • MD5

    3bc343997607a36dd36f9ec2937422dc

  • SHA1

    7336da33e47005bc66b94b67c7cdbc3f10a4f037

  • SHA256

    4bcee96b572888f92d70cdc796b65fff18947ec6b59e5eeb6636f66c3442a96b

  • SHA512

    98df7358181114c02e92f31fd989a7ac4c5885bfbfbd2a4a13a4c4be2c9d25ea31482fad9aed1db3cc48953fe01589b4640239ba370d16399631c2ad285a04e6

  • SSDEEP

    24576:UUOQIjxJxqW6ZvNrryeq7Xr8N9bb3DFsH:5WjxJEWstyewkb7ZsH

Malware Config

Signatures

  • Drops file in Drivers directory 1 IoCs
  • Executes dropped EXE 3 IoCs
  • Possible privilege escalation attempt 4 IoCs
  • Sets service image path in registry 2 TTPs 1 IoCs
  • UPX packed file 3 IoCs

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

  • 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 FindShellTrayWindow 5 IoCs
  • Suspicious use of SendNotifyMessage 5 IoCs
  • Suspicious use of WriteProcessMemory 30 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\4bcee96b572888f92d70cdc796b65fff18947ec6b59e5eeb6636f66c3442a96b.exe
    "C:\Users\Admin\AppData\Local\Temp\4bcee96b572888f92d70cdc796b65fff18947ec6b59e5eeb6636f66c3442a96b.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:5064
    • C:\Users\Admin\AppData\Local\Temp\e56b3f3.tmp
      >C:\Users\Admin\AppData\Local\Temp\4bcee96b572888f92d70cdc796b65fff18947ec6b59e5eeb6636f66c3442a96b.exe
      2⤵
      • Executes dropped EXE
      • Suspicious use of WriteProcessMemory
      PID:1116
      • C:\Users\Admin\AppData\Local\Temp\4bcee96b572888f92d70cdc796b65fff18947ec6b59e5eeb6636f66c3442a96b.exe
        "C:\Users\Admin\AppData\Local\Temp\4bcee96b572888f92d70cdc796b65fff18947ec6b59e5eeb6636f66c3442a96b.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SendNotifyMessage
        PID:4932
      • C:\Users\Admin\AppData\Local\Temp\e56b52c.exe
        "C:\Users\Admin\AppData\Local\Temp\\e56b52c.exe"
        3⤵
        • Drops file in Drivers directory
        • Executes dropped EXE
        • 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:4816
        • C:\Windows\SysWOW64\cmd.exe
          cmd.exe /c takeown /f C:\Windows\SysWOW64\wshtcpip.dll && icacls C:\Windows\SysWOW64\wshtcpip.dll /grant administrators:F
          4⤵
          • Suspicious use of WriteProcessMemory
          PID:4488
          • C:\Windows\SysWOW64\takeown.exe
            takeown /f C:\Windows\SysWOW64\wshtcpip.dll
            5⤵
            • Possible privilege escalation attempt
            • Modifies file permissions
            • Suspicious use of AdjustPrivilegeToken
            PID:2244
          • C:\Windows\SysWOW64\icacls.exe
            icacls C:\Windows\SysWOW64\wshtcpip.dll /grant administrators:F
            5⤵
            • Possible privilege escalation attempt
            • Modifies file permissions
            PID:1960
        • C:\Windows\SysWOW64\cmd.exe
          cmd.exe /c takeown /f C:\Windows\SysWOW64\midimap.dll && icacls C:\Windows\SysWOW64\midimap.dll /grant administrators:F
          4⤵
          • Suspicious use of WriteProcessMemory
          PID:4112
          • C:\Windows\SysWOW64\takeown.exe
            takeown /f C:\Windows\SysWOW64\midimap.dll
            5⤵
            • Possible privilege escalation attempt
            • Modifies file permissions
            • Suspicious use of AdjustPrivilegeToken
            PID:1104
          • C:\Windows\SysWOW64\icacls.exe
            icacls C:\Windows\SysWOW64\midimap.dll /grant administrators:F
            5⤵
            • Possible privilege escalation attempt
            • Modifies file permissions
            PID:4980
        • C:\Windows\SysWOW64\cmd.exe
          C:\Windows\system32\cmd.exe /c C:\Users\Admin\AppData\Local\Temp\ahnmove.bat
          4⤵
            PID:4416

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

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    Downloads

    • C:\Users\Admin\AppData\Local\Temp\4bcee96b572888f92d70cdc796b65fff18947ec6b59e5eeb6636f66c3442a96b.exe

      Filesize

      196KB

      MD5

      94ae8aae4c9f1fbf472a5a4df0abe9f3

      SHA1

      1fbc740ace3e4c2343097738c6eed8ab4a66eb0f

      SHA256

      b3d53992dfb5f031d7a7f7b93e0528090fe9788dc2ed5d2405b1afe50ea146c7

      SHA512

      3996ea4dd6dffe4b3e92f3c4ec22f581b0985292024efe285c8ff5070ef9e90653c1cb91365a5846f8e4e7eafe7e681fd977400c49c9ebc72f43b7fee4295b7e

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

      Filesize

      179B

      MD5

      8b3374df60ff30023f8126e3a609ef3f

      SHA1

      42923d5d52d2d4c0db13b490e6d169d33775815e

      SHA256

      a45e9abc451fe72d129777deb836256f9fdee163ff9d029cec0d039d7d5605f4

      SHA512

      c2f806ec9efd99f56e77223619538e85571c2e0934994173983c3c3cda1fd9a7f98595e8e13e5aff1534a806d35257a7677166411f85165c9b268035649de1b5

    • C:\Users\Admin\AppData\Local\Temp\e56b3f3.tmp

      Filesize

      1.0MB

      MD5

      3bc343997607a36dd36f9ec2937422dc

      SHA1

      7336da33e47005bc66b94b67c7cdbc3f10a4f037

      SHA256

      4bcee96b572888f92d70cdc796b65fff18947ec6b59e5eeb6636f66c3442a96b

      SHA512

      98df7358181114c02e92f31fd989a7ac4c5885bfbfbd2a4a13a4c4be2c9d25ea31482fad9aed1db3cc48953fe01589b4640239ba370d16399631c2ad285a04e6

    • C:\Users\Admin\AppData\Local\Temp\e56b3f3.tmp

      Filesize

      1.0MB

      MD5

      3bc343997607a36dd36f9ec2937422dc

      SHA1

      7336da33e47005bc66b94b67c7cdbc3f10a4f037

      SHA256

      4bcee96b572888f92d70cdc796b65fff18947ec6b59e5eeb6636f66c3442a96b

      SHA512

      98df7358181114c02e92f31fd989a7ac4c5885bfbfbd2a4a13a4c4be2c9d25ea31482fad9aed1db3cc48953fe01589b4640239ba370d16399631c2ad285a04e6

    • C:\Users\Admin\AppData\Local\Temp\e56b52c.exe

      Filesize

      846KB

      MD5

      ba68d4c5343746d9bcf3cbadad3ba564

      SHA1

      3c23f9c71854c070203f45b9775b6b74d9a8658f

      SHA256

      63077e0732540d09c8c64c68239a213b910b2182de1d9893c51f8ef0bde5c32c

      SHA512

      7ee9b012c2ed8abe9be931ea9b1d927f6b9f948fe98cc3856a4a34be1fd1699bd4c47ad09694e5cdbb5c57da8f6160fcc6c6196a79c920eabc356ade4b6e90e9

    • C:\Users\Admin\AppData\Local\Temp\e56b52c.exe

      Filesize

      846KB

      MD5

      ba68d4c5343746d9bcf3cbadad3ba564

      SHA1

      3c23f9c71854c070203f45b9775b6b74d9a8658f

      SHA256

      63077e0732540d09c8c64c68239a213b910b2182de1d9893c51f8ef0bde5c32c

      SHA512

      7ee9b012c2ed8abe9be931ea9b1d927f6b9f948fe98cc3856a4a34be1fd1699bd4c47ad09694e5cdbb5c57da8f6160fcc6c6196a79c920eabc356ade4b6e90e9

    • memory/1104-152-0x0000000000000000-mapping.dmp

    • memory/1116-132-0x0000000000000000-mapping.dmp

    • memory/1116-140-0x0000000000400000-0x000000000040B000-memory.dmp

      Filesize

      44KB

    • memory/1960-150-0x0000000000000000-mapping.dmp

    • memory/2244-149-0x0000000000000000-mapping.dmp

    • memory/4112-151-0x0000000000000000-mapping.dmp

    • memory/4416-154-0x0000000000000000-mapping.dmp

    • memory/4488-148-0x0000000000000000-mapping.dmp

    • memory/4816-138-0x0000000000000000-mapping.dmp

    • memory/4816-147-0x0000000001000000-0x0000000001C57000-memory.dmp

      Filesize

      12.3MB

    • memory/4816-146-0x0000000000BF0000-0x0000000000C10000-memory.dmp

      Filesize

      128KB

    • memory/4816-144-0x0000000001000000-0x0000000001C57000-memory.dmp

      Filesize

      12.3MB

    • memory/4816-143-0x0000000000BF0000-0x0000000000C10000-memory.dmp

      Filesize

      128KB

    • memory/4816-156-0x0000000001000000-0x0000000001C57000-memory.dmp

      Filesize

      12.3MB

    • memory/4932-145-0x0000000000400000-0x000000000048C000-memory.dmp

      Filesize

      560KB

    • memory/4932-142-0x0000000000400000-0x000000000048C000-memory.dmp

      Filesize

      560KB

    • memory/4932-136-0x0000000000000000-mapping.dmp

    • memory/4980-153-0x0000000000000000-mapping.dmp

    • memory/5064-135-0x0000000000400000-0x000000000040B000-memory.dmp

      Filesize

      44KB