Analysis

  • max time kernel
    150s
  • max time network
    152s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220901-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system
  • submitted
    06/11/2022, 07:07

General

  • Target

    e43af533c291559f4b6507521659585d9128a82c15ca2533593fbddd7366a8d9.exe

  • Size

    799KB

  • MD5

    0a96e4f9d8439f6b06017bc0dc37e381

  • SHA1

    f2bae85567af84006cbffd58cacb0d8a47150cc9

  • SHA256

    e43af533c291559f4b6507521659585d9128a82c15ca2533593fbddd7366a8d9

  • SHA512

    b84c902bf7b968a911c70731401c04a7f3041604bc66cba8d2cca695b803f2512fb147b5bc47108d6323e7c084e7bfdca0a6718bdbff255ae1d78a3d38f6d41c

  • SSDEEP

    24576:1aGWYMCoXl3nmBJVzOMrIrkVFhB5TIFd5zd:1vWQo1320/rkGFp

Malware Config

Signatures

  • CyberGate, Rebhip

    CyberGate is a lightweight remote administration tool with a wide array of functionalities.

  • Adds policy Run key to start application 2 TTPs 4 IoCs
  • Executes dropped EXE 1 IoCs
  • Modifies Installed Components in the registry 2 TTPs 4 IoCs
  • UPX packed file 19 IoCs

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

  • Checks BIOS information in registry 2 TTPs 4 IoCs

    BIOS information is often read in order to detect sandboxing environments.

  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Adds Run key to start application 2 TTPs 4 IoCs
  • Drops file in System32 directory 4 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Checks processor information in registry 2 TTPs 14 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Enumerates system info in registry 2 TTPs 2 IoCs
  • Modifies registry class 1 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Windows\Explorer.EXE
    C:\Windows\Explorer.EXE
    1⤵
      PID:1040
      • C:\Users\Admin\AppData\Local\Temp\e43af533c291559f4b6507521659585d9128a82c15ca2533593fbddd7366a8d9.exe
        "C:\Users\Admin\AppData\Local\Temp\e43af533c291559f4b6507521659585d9128a82c15ca2533593fbddd7366a8d9.exe"
        2⤵
        • Adds policy Run key to start application
        • Modifies Installed Components in the registry
        • Checks BIOS information in registry
        • Adds Run key to start application
        • Drops file in System32 directory
        • Checks processor information in registry
        • Enumerates system info in registry
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of WriteProcessMemory
        PID:3256
        • C:\Windows\SysWOW64\explorer.exe
          explorer.exe
          3⤵
          • Modifies Installed Components in the registry
          PID:840
        • C:\Program Files\Internet Explorer\iexplore.exe
          "C:\Program Files\Internet Explorer\iexplore.exe"
          3⤵
            PID:2724
          • C:\Users\Admin\AppData\Local\Temp\e43af533c291559f4b6507521659585d9128a82c15ca2533593fbddd7366a8d9.exe
            "C:\Users\Admin\AppData\Local\Temp\e43af533c291559f4b6507521659585d9128a82c15ca2533593fbddd7366a8d9.exe"
            3⤵
            • Checks computer location settings
            • Drops file in System32 directory
            • Modifies registry class
            • Suspicious behavior: GetForegroundWindowSpam
            • Suspicious use of AdjustPrivilegeToken
            PID:3924
            • C:\Windows\SysWOW64\install\server.exe
              "C:\Windows\system32\install\server.exe"
              4⤵
              • Executes dropped EXE
              • Checks BIOS information in registry
              • Checks processor information in registry
              • Enumerates system info in registry
              PID:4732

      Network

            MITRE ATT&CK Enterprise v6

            Replay Monitor

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            Downloads

            • C:\Users\Admin\AppData\Local\Temp\XX--XX--XX.txt

              Filesize

              229KB

              MD5

              6a88be11070d695a7b289b10f085fc34

              SHA1

              253b4736c330eebc6e320872b4ef498381db0b6d

              SHA256

              27592e2d4095f53418e4cae63d58ce4e337f1b780d3fb94585f88ecf8946538d

              SHA512

              4ee5010f0c55ff3a8139a638db68a72b03dd245c0cc3684e44a263ba02fafd05f7cf1d1361e8c119311176f610554763642d846c1c436000c678f722a0665309

            • C:\Windows\SysWOW64\install\server.exe

              Filesize

              799KB

              MD5

              0a96e4f9d8439f6b06017bc0dc37e381

              SHA1

              f2bae85567af84006cbffd58cacb0d8a47150cc9

              SHA256

              e43af533c291559f4b6507521659585d9128a82c15ca2533593fbddd7366a8d9

              SHA512

              b84c902bf7b968a911c70731401c04a7f3041604bc66cba8d2cca695b803f2512fb147b5bc47108d6323e7c084e7bfdca0a6718bdbff255ae1d78a3d38f6d41c

            • C:\Windows\SysWOW64\install\server.exe

              Filesize

              799KB

              MD5

              0a96e4f9d8439f6b06017bc0dc37e381

              SHA1

              f2bae85567af84006cbffd58cacb0d8a47150cc9

              SHA256

              e43af533c291559f4b6507521659585d9128a82c15ca2533593fbddd7366a8d9

              SHA512

              b84c902bf7b968a911c70731401c04a7f3041604bc66cba8d2cca695b803f2512fb147b5bc47108d6323e7c084e7bfdca0a6718bdbff255ae1d78a3d38f6d41c

            • memory/840-173-0x0000000024080000-0x00000000240E2000-memory.dmp

              Filesize

              392KB

            • memory/840-148-0x0000000024080000-0x00000000240E2000-memory.dmp

              Filesize

              392KB

            • memory/840-147-0x0000000024080000-0x00000000240E2000-memory.dmp

              Filesize

              392KB

            • memory/3256-136-0x0000000002890000-0x00000000028C8000-memory.dmp

              Filesize

              224KB

            • memory/3256-144-0x0000000024080000-0x00000000240E2000-memory.dmp

              Filesize

              392KB

            • memory/3256-139-0x0000000024010000-0x0000000024072000-memory.dmp

              Filesize

              392KB

            • memory/3256-137-0x0000000000400000-0x0000000000518000-memory.dmp

              Filesize

              1.1MB

            • memory/3256-163-0x0000000002890000-0x00000000028C8000-memory.dmp

              Filesize

              224KB

            • memory/3256-135-0x00000000024C0000-0x00000000024D1000-memory.dmp

              Filesize

              68KB

            • memory/3256-152-0x00000000240F0000-0x0000000024152000-memory.dmp

              Filesize

              392KB

            • memory/3256-134-0x0000000002890000-0x00000000028C8000-memory.dmp

              Filesize

              224KB

            • memory/3256-157-0x0000000024160000-0x00000000241C2000-memory.dmp

              Filesize

              392KB

            • memory/3256-132-0x0000000000400000-0x0000000000518000-memory.dmp

              Filesize

              1.1MB

            • memory/3256-133-0x00000000024C0000-0x00000000024D1000-memory.dmp

              Filesize

              68KB

            • memory/3256-162-0x0000000000400000-0x0000000000518000-memory.dmp

              Filesize

              1.1MB

            • memory/3924-160-0x0000000000400000-0x0000000000518000-memory.dmp

              Filesize

              1.1MB

            • memory/3924-164-0x0000000024160000-0x00000000241C2000-memory.dmp

              Filesize

              392KB

            • memory/3924-161-0x0000000024160000-0x00000000241C2000-memory.dmp

              Filesize

              392KB

            • memory/3924-175-0x0000000024160000-0x00000000241C2000-memory.dmp

              Filesize

              392KB

            • memory/4732-167-0x0000000000690000-0x00000000006A1000-memory.dmp

              Filesize

              68KB

            • memory/4732-168-0x0000000000400000-0x0000000000518000-memory.dmp

              Filesize

              1.1MB

            • memory/4732-169-0x0000000000690000-0x00000000006A1000-memory.dmp

              Filesize

              68KB

            • memory/4732-170-0x0000000002200000-0x0000000002238000-memory.dmp

              Filesize

              224KB

            • memory/4732-171-0x0000000002200000-0x0000000002238000-memory.dmp

              Filesize

              224KB

            • memory/4732-172-0x0000000000400000-0x0000000000518000-memory.dmp

              Filesize

              1.1MB

            • memory/4732-174-0x0000000000400000-0x0000000000518000-memory.dmp

              Filesize

              1.1MB