Analysis

  • max time kernel
    152s
  • max time network
    71s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-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 20 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.

  • Loads dropped DLL 2 IoCs
  • 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 16 IoCs

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

  • Enumerates system info in registry 2 TTPs 2 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:1284
      • 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:1976
        • C:\Windows\SysWOW64\explorer.exe
          explorer.exe
          3⤵
          • Modifies Installed Components in the registry
          PID:1480
        • C:\Program Files\Internet Explorer\iexplore.exe
          "C:\Program Files\Internet Explorer\iexplore.exe"
          3⤵
            PID:1564
          • C:\Users\Admin\AppData\Local\Temp\e43af533c291559f4b6507521659585d9128a82c15ca2533593fbddd7366a8d9.exe
            "C:\Users\Admin\AppData\Local\Temp\e43af533c291559f4b6507521659585d9128a82c15ca2533593fbddd7366a8d9.exe"
            3⤵
            • Loads dropped DLL
            • Drops file in System32 directory
            • Suspicious behavior: GetForegroundWindowSpam
            • Suspicious use of AdjustPrivilegeToken
            PID:1948
            • 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:1772

      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

            • \Windows\SysWOW64\install\server.exe

              Filesize

              799KB

              MD5

              0a96e4f9d8439f6b06017bc0dc37e381

              SHA1

              f2bae85567af84006cbffd58cacb0d8a47150cc9

              SHA256

              e43af533c291559f4b6507521659585d9128a82c15ca2533593fbddd7366a8d9

              SHA512

              b84c902bf7b968a911c70731401c04a7f3041604bc66cba8d2cca695b803f2512fb147b5bc47108d6323e7c084e7bfdca0a6718bdbff255ae1d78a3d38f6d41c

            • \Windows\SysWOW64\install\server.exe

              Filesize

              799KB

              MD5

              0a96e4f9d8439f6b06017bc0dc37e381

              SHA1

              f2bae85567af84006cbffd58cacb0d8a47150cc9

              SHA256

              e43af533c291559f4b6507521659585d9128a82c15ca2533593fbddd7366a8d9

              SHA512

              b84c902bf7b968a911c70731401c04a7f3041604bc66cba8d2cca695b803f2512fb147b5bc47108d6323e7c084e7bfdca0a6718bdbff255ae1d78a3d38f6d41c

            • memory/1284-65-0x0000000024010000-0x0000000024072000-memory.dmp

              Filesize

              392KB

            • memory/1480-70-0x0000000074401000-0x0000000074403000-memory.dmp

              Filesize

              8KB

            • memory/1480-79-0x0000000024080000-0x00000000240E2000-memory.dmp

              Filesize

              392KB

            • memory/1480-76-0x0000000024080000-0x00000000240E2000-memory.dmp

              Filesize

              392KB

            • memory/1772-105-0x0000000000400000-0x0000000000518000-memory.dmp

              Filesize

              1.1MB

            • memory/1772-111-0x0000000000370000-0x00000000003A8000-memory.dmp

              Filesize

              224KB

            • memory/1772-110-0x0000000000400000-0x0000000000518000-memory.dmp

              Filesize

              1.1MB

            • memory/1772-109-0x0000000000400000-0x0000000000518000-memory.dmp

              Filesize

              1.1MB

            • memory/1772-108-0x0000000000370000-0x00000000003A8000-memory.dmp

              Filesize

              224KB

            • memory/1772-107-0x0000000000290000-0x00000000002A1000-memory.dmp

              Filesize

              68KB

            • memory/1772-106-0x0000000000370000-0x00000000003A8000-memory.dmp

              Filesize

              224KB

            • memory/1772-104-0x0000000000290000-0x00000000002A1000-memory.dmp

              Filesize

              68KB

            • memory/1948-103-0x0000000007570000-0x0000000007688000-memory.dmp

              Filesize

              1.1MB

            • memory/1948-97-0x0000000024160000-0x00000000241C2000-memory.dmp

              Filesize

              392KB

            • memory/1948-112-0x0000000024160000-0x00000000241C2000-memory.dmp

              Filesize

              392KB

            • memory/1948-96-0x0000000000400000-0x0000000000518000-memory.dmp

              Filesize

              1.1MB

            • memory/1948-92-0x0000000024160000-0x00000000241C2000-memory.dmp

              Filesize

              392KB

            • memory/1976-71-0x0000000024080000-0x00000000240E2000-memory.dmp

              Filesize

              392KB

            • memory/1976-95-0x0000000000580000-0x00000000005B8000-memory.dmp

              Filesize

              224KB

            • memory/1976-56-0x0000000000400000-0x0000000000518000-memory.dmp

              Filesize

              1.1MB

            • memory/1976-55-0x0000000000560000-0x0000000000571000-memory.dmp

              Filesize

              68KB

            • memory/1976-57-0x0000000000560000-0x0000000000571000-memory.dmp

              Filesize

              68KB

            • memory/1976-87-0x0000000024160000-0x00000000241C2000-memory.dmp

              Filesize

              392KB

            • memory/1976-62-0x0000000024010000-0x0000000024072000-memory.dmp

              Filesize

              392KB

            • memory/1976-93-0x0000000000400000-0x0000000000518000-memory.dmp

              Filesize

              1.1MB

            • memory/1976-81-0x00000000240F0000-0x0000000024152000-memory.dmp

              Filesize

              392KB

            • memory/1976-60-0x0000000000400000-0x0000000000518000-memory.dmp

              Filesize

              1.1MB

            • memory/1976-58-0x0000000000580000-0x00000000005B8000-memory.dmp

              Filesize

              224KB

            • memory/1976-59-0x0000000000580000-0x00000000005B8000-memory.dmp

              Filesize

              224KB

            • memory/1976-54-0x0000000074D81000-0x0000000074D83000-memory.dmp

              Filesize

              8KB

            • memory/1976-94-0x0000000000560000-0x0000000000571000-memory.dmp

              Filesize

              68KB