Analysis

  • max time kernel
    150s
  • max time network
    153s
  • platform
    windows7_x64
  • resource
    win7-20230712-en
  • resource tags

    arch:x64arch:x86image:win7-20230712-enlocale:en-usos:windows7-x64system
  • submitted
    19-07-2023 14:50

General

  • Target

    efe5bc271a5b05exe_JC.exe

  • Size

    351KB

  • MD5

    efe5bc271a5b05a0ad15b6b1a2a5d0c3

  • SHA1

    979f027efd0f6941a334bb529d7f871411a50d34

  • SHA256

    8b1598f09dcf1be0fd7eb4f03f3287e1667e16e8e1e8ef7cfd8b8985a0fd11d3

  • SHA512

    a00bc840a1f661d6fbc3035c6129326de085dd23b4996b4c4e9d11e3bff9710b2c47f872d1e4b68ddddbc9ba764866b3c3238727d80e1eaa243685be297f253d

  • SSDEEP

    3072:rpNMs+Kr1wbWGjl0xjsNNeVKBNVBxKT46xl+wndfIQQOaC3QBn7/hsb2BhGZ1/Nb:rpNMsLWEjsXjBATRpuuwnGD/Nj6a

Malware Config

Signatures

  • GandCrab payload 4 IoCs
  • Gandcrab

    Gandcrab is a Trojan horse that encrypts files on a computer.

  • Unexpected DNS network traffic destination 64 IoCs

    Network traffic to other servers than the configured DNS servers was detected on the DNS port.

  • Adds Run key to start application 2 TTPs 2 IoCs
  • Enumerates connected drives 3 TTPs 23 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Checks processor information in registry 2 TTPs 3 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of WriteProcessMemory 52 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\efe5bc271a5b05exe_JC.exe
    "C:\Users\Admin\AppData\Local\Temp\efe5bc271a5b05exe_JC.exe"
    1⤵
    • Adds Run key to start application
    • Enumerates connected drives
    • Checks processor information in registry
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:2600
    • C:\Windows\SysWOW64\nslookup.exe
      nslookup carder.bit ns1.wowservers.ru
      2⤵
        PID:1416
      • C:\Windows\SysWOW64\nslookup.exe
        nslookup ransomware.bit ns2.wowservers.ru
        2⤵
          PID:1580
        • C:\Windows\SysWOW64\nslookup.exe
          nslookup carder.bit ns2.wowservers.ru
          2⤵
            PID:2816
          • C:\Windows\SysWOW64\nslookup.exe
            nslookup ransomware.bit ns1.wowservers.ru
            2⤵
              PID:2936
            • C:\Windows\SysWOW64\nslookup.exe
              nslookup carder.bit ns1.wowservers.ru
              2⤵
                PID:3040
              • C:\Windows\SysWOW64\nslookup.exe
                nslookup ransomware.bit ns2.wowservers.ru
                2⤵
                  PID:2940
                • C:\Windows\SysWOW64\nslookup.exe
                  nslookup carder.bit ns2.wowservers.ru
                  2⤵
                    PID:2488
                  • C:\Windows\SysWOW64\nslookup.exe
                    nslookup ransomware.bit ns1.wowservers.ru
                    2⤵
                      PID:2920
                    • C:\Windows\SysWOW64\nslookup.exe
                      nslookup carder.bit ns1.wowservers.ru
                      2⤵
                        PID:2896
                      • C:\Windows\SysWOW64\nslookup.exe
                        nslookup ransomware.bit ns2.wowservers.ru
                        2⤵
                          PID:2776
                        • C:\Windows\SysWOW64\nslookup.exe
                          nslookup carder.bit ns2.wowservers.ru
                          2⤵
                            PID:2764
                          • C:\Windows\SysWOW64\nslookup.exe
                            nslookup ransomware.bit ns1.wowservers.ru
                            2⤵
                              PID:2568
                            • C:\Windows\SysWOW64\nslookup.exe
                              nslookup carder.bit ns1.wowservers.ru
                              2⤵
                                PID:2036

                            Network

                            MITRE ATT&CK Enterprise v6

                            Replay Monitor

                            Loading Replay Monitor...

                            Downloads

                            • memory/2600-55-0x0000000000290000-0x0000000000390000-memory.dmp

                              Filesize

                              1024KB

                            • memory/2600-56-0x0000000000400000-0x00000000012D6000-memory.dmp

                              Filesize

                              14.8MB

                            • memory/2600-57-0x0000000000400000-0x00000000012D6000-memory.dmp

                              Filesize

                              14.8MB

                            • memory/2600-58-0x0000000000260000-0x0000000000277000-memory.dmp

                              Filesize

                              92KB

                            • memory/2600-65-0x0000000000290000-0x0000000000390000-memory.dmp

                              Filesize

                              1024KB

                            • memory/2600-66-0x0000000000400000-0x00000000012D6000-memory.dmp

                              Filesize

                              14.8MB

                            • memory/2600-68-0x0000000000260000-0x0000000000277000-memory.dmp

                              Filesize

                              92KB