Analysis

  • max time kernel
    149s
  • max time network
    145s
  • platform
    windows7_x64
  • resource
    win7-20230831-en
  • resource tags

    arch:x64arch:x86image:win7-20230831-enlocale:en-usos:windows7-x64system
  • submitted
    26-09-2023 13:55

General

  • Target

    docble20230925.exe

  • Size

    807KB

  • MD5

    01973f09014fee62754ea67861264da5

  • SHA1

    d8b34971917d38fe2b097604325e277a3c23ebb3

  • SHA256

    4110933fe032350468c29329959cb10fc54704a2ec7af1e71155202a337aee6d

  • SHA512

    90f444be2ec94092030359a06b9a790b580a1cd3c13f98add7b0012144f65c01b091129165db4f2374a52f74c9a7c2e7e332661fe76481f2de392b4a77079ee9

  • SSDEEP

    12288:d1F0ILW7uyIdVhDGoTkjg7vSMePpL71uFYD0kIy0MWaP7anc1Z:10IeIdDxe1PpLpsumD5aDGc1

Malware Config

Extracted

Credentials

  • Protocol:
    ftp
  • Host:
    ftp.royalcheckout.store
  • Port:
    21
  • Username:
    [email protected]
  • Password:
    esubwDViXlQ2@@##

Extracted

Family

snakekeylogger

Credentials

  • Protocol:
    ftp
  • Host:
    ftp://ftp.royalcheckout.store/
  • Port:
    21
  • Username:
    [email protected]
  • Password:
    esubwDViXlQ2@@##

Signatures

  • Snake Keylogger

    Keylogger and Infostealer first seen in November 2020.

  • Snake Keylogger payload 6 IoCs
  • Executes dropped EXE 5 IoCs
  • Loads dropped DLL 2 IoCs
  • Reads user/profile data of local email clients 2 TTPs

    Email clients store some user data on disk where infostealers will often target it.

  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
  • Looks up external IP address via web service 1 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Suspicious use of SetThreadContext 3 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Creates scheduled task(s) 1 TTPs 3 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious behavior: SetClipboardViewer 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\docble20230925.exe
    "C:\Users\Admin\AppData\Local\Temp\docble20230925.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:1980
    • C:\Users\Admin\AppData\Local\Temp\docble20230925.exe
      "C:\Users\Admin\AppData\Local\Temp\docble20230925.exe"
      2⤵
      • Accesses Microsoft Outlook profiles
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      • outlook_office_path
      • outlook_win_path
      PID:2868
    • C:\Users\Admin\AppData\Local\Temp\svchost.exe
      "C:\Users\Admin\AppData\Local\Temp\svchost.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious use of SetThreadContext
      • Suspicious use of WriteProcessMemory
      PID:2752
      • C:\Users\Admin\AppData\Local\Temp\svchost.exe
        "C:\Users\Admin\AppData\Local\Temp\svchost.exe"
        3⤵
        • Executes dropped EXE
        PID:1212
      • C:\Windows\SysWOW64\cmd.exe
        "cmd" /c mkdir "C:\Users\Admin\AppData\Roaming\avast"
        3⤵
          PID:2844
        • C:\Windows\SysWOW64\cmd.exe
          "cmd" /c copy "C:\Users\Admin\AppData\Local\Temp\svchost.exe" "C:\Users\Admin\AppData\Roaming\avast\avast.exe"
          3⤵
            PID:2960
          • C:\Windows\SysWOW64\cmd.exe
            "cmd" /c schtasks /create /sc minute /mo 1 /tn "Nafifas" /tr "'C:\Users\Admin\AppData\Roaming\avast\avast.exe'" /f
            3⤵
            • Suspicious use of WriteProcessMemory
            PID:2852
            • C:\Windows\SysWOW64\schtasks.exe
              schtasks /create /sc minute /mo 1 /tn "Nafifas" /tr "'C:\Users\Admin\AppData\Roaming\avast\avast.exe'" /f
              4⤵
              • Creates scheduled task(s)
              PID:1112
        • C:\Windows\SysWOW64\cmd.exe
          "cmd" /c mkdir "C:\Users\Admin\AppData\Roaming\svchost"
          2⤵
            PID:2544
          • C:\Windows\SysWOW64\cmd.exe
            "cmd" /c copy "C:\Users\Admin\AppData\Local\Temp\docble20230925.exe" "C:\Users\Admin\AppData\Roaming\svchost\svchost.exe"
            2⤵
              PID:2560
            • C:\Windows\SysWOW64\cmd.exe
              "cmd" /c schtasks /create /sc minute /mo 1 /tn "Nafifas" /tr "'C:\Users\Admin\AppData\Roaming\svchost\svchost.exe'" /f
              2⤵
              • Suspicious use of WriteProcessMemory
              PID:2952
              • C:\Windows\SysWOW64\schtasks.exe
                schtasks /create /sc minute /mo 1 /tn "Nafifas" /tr "'C:\Users\Admin\AppData\Roaming\svchost\svchost.exe'" /f
                3⤵
                • Creates scheduled task(s)
                PID:2008
          • C:\Windows\system32\taskeng.exe
            taskeng.exe {0D3AF272-D32E-485D-A178-5ADF1DE21972} S-1-5-21-86725733-3001458681-3405935542-1000:ZWKQHIWB\Admin:Interactive:[1]
            1⤵
            • Suspicious use of WriteProcessMemory
            PID:2444
            • C:\Users\Admin\AppData\Roaming\avast\avast.exe
              C:\Users\Admin\AppData\Roaming\avast\avast.exe
              2⤵
              • Executes dropped EXE
              • Suspicious use of SetThreadContext
              • Suspicious use of WriteProcessMemory
              PID:1944
              • C:\Users\Admin\AppData\Roaming\avast\avast.exe
                "C:\Users\Admin\AppData\Roaming\avast\avast.exe"
                3⤵
                • Executes dropped EXE
                • Suspicious behavior: SetClipboardViewer
                PID:656
              • C:\Windows\SysWOW64\cmd.exe
                "cmd" /c mkdir "C:\Users\Admin\AppData\Roaming\avast"
                3⤵
                  PID:1784
                • C:\Windows\SysWOW64\cmd.exe
                  "cmd" /c schtasks /create /sc minute /mo 1 /tn "Nafifas" /tr "'C:\Users\Admin\AppData\Roaming\avast\avast.exe'" /f
                  3⤵
                    PID:2120
                    • C:\Windows\SysWOW64\schtasks.exe
                      schtasks /create /sc minute /mo 1 /tn "Nafifas" /tr "'C:\Users\Admin\AppData\Roaming\avast\avast.exe'" /f
                      4⤵
                      • Creates scheduled task(s)
                      PID:1196
                  • C:\Windows\SysWOW64\cmd.exe
                    "cmd" /c copy "C:\Users\Admin\AppData\Roaming\avast\avast.exe" "C:\Users\Admin\AppData\Roaming\avast\avast.exe"
                    3⤵
                      PID:2160
                  • C:\Users\Admin\AppData\Roaming\avast\avast.exe
                    C:\Users\Admin\AppData\Roaming\avast\avast.exe
                    2⤵
                    • Executes dropped EXE
                    PID:2712

                Network

                MITRE ATT&CK Enterprise v15

                Replay Monitor

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                Downloads

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

                  Filesize

                  621KB

                  MD5

                  ed9d91fe584d5109d4067734ac452753

                  SHA1

                  c277e57866833509d94787fc6f4d634a2714825d

                  SHA256

                  3629ed9b94ae5d0f2659d02dcb7ce258cb5c2497d5bf18f3c4fed78878fba030

                  SHA512

                  a6603acb550b897ec91b5c57b3034b8fd44ad9d675662aade0a078771b533b28e320c12c063c4ae48bfb23e8dfc85f304679458ea111db2e737043af0261bb1a

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

                  Filesize

                  621KB

                  MD5

                  ed9d91fe584d5109d4067734ac452753

                  SHA1

                  c277e57866833509d94787fc6f4d634a2714825d

                  SHA256

                  3629ed9b94ae5d0f2659d02dcb7ce258cb5c2497d5bf18f3c4fed78878fba030

                  SHA512

                  a6603acb550b897ec91b5c57b3034b8fd44ad9d675662aade0a078771b533b28e320c12c063c4ae48bfb23e8dfc85f304679458ea111db2e737043af0261bb1a

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

                  Filesize

                  621KB

                  MD5

                  ed9d91fe584d5109d4067734ac452753

                  SHA1

                  c277e57866833509d94787fc6f4d634a2714825d

                  SHA256

                  3629ed9b94ae5d0f2659d02dcb7ce258cb5c2497d5bf18f3c4fed78878fba030

                  SHA512

                  a6603acb550b897ec91b5c57b3034b8fd44ad9d675662aade0a078771b533b28e320c12c063c4ae48bfb23e8dfc85f304679458ea111db2e737043af0261bb1a

                • C:\Users\Admin\AppData\Roaming\avast\avast.exe

                  Filesize

                  621KB

                  MD5

                  ed9d91fe584d5109d4067734ac452753

                  SHA1

                  c277e57866833509d94787fc6f4d634a2714825d

                  SHA256

                  3629ed9b94ae5d0f2659d02dcb7ce258cb5c2497d5bf18f3c4fed78878fba030

                  SHA512

                  a6603acb550b897ec91b5c57b3034b8fd44ad9d675662aade0a078771b533b28e320c12c063c4ae48bfb23e8dfc85f304679458ea111db2e737043af0261bb1a

                • C:\Users\Admin\AppData\Roaming\avast\avast.exe

                  Filesize

                  621KB

                  MD5

                  ed9d91fe584d5109d4067734ac452753

                  SHA1

                  c277e57866833509d94787fc6f4d634a2714825d

                  SHA256

                  3629ed9b94ae5d0f2659d02dcb7ce258cb5c2497d5bf18f3c4fed78878fba030

                  SHA512

                  a6603acb550b897ec91b5c57b3034b8fd44ad9d675662aade0a078771b533b28e320c12c063c4ae48bfb23e8dfc85f304679458ea111db2e737043af0261bb1a

                • C:\Users\Admin\AppData\Roaming\avast\avast.exe

                  Filesize

                  621KB

                  MD5

                  ed9d91fe584d5109d4067734ac452753

                  SHA1

                  c277e57866833509d94787fc6f4d634a2714825d

                  SHA256

                  3629ed9b94ae5d0f2659d02dcb7ce258cb5c2497d5bf18f3c4fed78878fba030

                  SHA512

                  a6603acb550b897ec91b5c57b3034b8fd44ad9d675662aade0a078771b533b28e320c12c063c4ae48bfb23e8dfc85f304679458ea111db2e737043af0261bb1a

                • C:\Users\Admin\AppData\Roaming\avast\avast.exe

                  Filesize

                  621KB

                  MD5

                  ed9d91fe584d5109d4067734ac452753

                  SHA1

                  c277e57866833509d94787fc6f4d634a2714825d

                  SHA256

                  3629ed9b94ae5d0f2659d02dcb7ce258cb5c2497d5bf18f3c4fed78878fba030

                  SHA512

                  a6603acb550b897ec91b5c57b3034b8fd44ad9d675662aade0a078771b533b28e320c12c063c4ae48bfb23e8dfc85f304679458ea111db2e737043af0261bb1a

                • C:\Users\Admin\AppData\Roaming\avast\avast.exe

                  Filesize

                  621KB

                  MD5

                  ed9d91fe584d5109d4067734ac452753

                  SHA1

                  c277e57866833509d94787fc6f4d634a2714825d

                  SHA256

                  3629ed9b94ae5d0f2659d02dcb7ce258cb5c2497d5bf18f3c4fed78878fba030

                  SHA512

                  a6603acb550b897ec91b5c57b3034b8fd44ad9d675662aade0a078771b533b28e320c12c063c4ae48bfb23e8dfc85f304679458ea111db2e737043af0261bb1a

                • \Users\Admin\AppData\Local\Temp\svchost.exe

                  Filesize

                  621KB

                  MD5

                  ed9d91fe584d5109d4067734ac452753

                  SHA1

                  c277e57866833509d94787fc6f4d634a2714825d

                  SHA256

                  3629ed9b94ae5d0f2659d02dcb7ce258cb5c2497d5bf18f3c4fed78878fba030

                  SHA512

                  a6603acb550b897ec91b5c57b3034b8fd44ad9d675662aade0a078771b533b28e320c12c063c4ae48bfb23e8dfc85f304679458ea111db2e737043af0261bb1a

                • \Users\Admin\AppData\Local\Temp\svchost.exe

                  Filesize

                  621KB

                  MD5

                  ed9d91fe584d5109d4067734ac452753

                  SHA1

                  c277e57866833509d94787fc6f4d634a2714825d

                  SHA256

                  3629ed9b94ae5d0f2659d02dcb7ce258cb5c2497d5bf18f3c4fed78878fba030

                  SHA512

                  a6603acb550b897ec91b5c57b3034b8fd44ad9d675662aade0a078771b533b28e320c12c063c4ae48bfb23e8dfc85f304679458ea111db2e737043af0261bb1a

                • memory/656-82-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

                  Filesize

                  4KB

                • memory/656-90-0x0000000074930000-0x000000007501E000-memory.dmp

                  Filesize

                  6.9MB

                • memory/656-91-0x0000000004830000-0x0000000004870000-memory.dmp

                  Filesize

                  256KB

                • memory/656-93-0x0000000074930000-0x000000007501E000-memory.dmp

                  Filesize

                  6.9MB

                • memory/656-94-0x0000000004830000-0x0000000004870000-memory.dmp

                  Filesize

                  256KB

                • memory/1212-50-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

                  Filesize

                  4KB

                • memory/1212-48-0x0000000000400000-0x0000000000418000-memory.dmp

                  Filesize

                  96KB

                • memory/1212-64-0x00000000045B0000-0x00000000045F0000-memory.dmp

                  Filesize

                  256KB

                • memory/1212-63-0x0000000074930000-0x000000007501E000-memory.dmp

                  Filesize

                  6.9MB

                • memory/1212-61-0x0000000074930000-0x000000007501E000-memory.dmp

                  Filesize

                  6.9MB

                • memory/1212-62-0x00000000045B0000-0x00000000045F0000-memory.dmp

                  Filesize

                  256KB

                • memory/1212-55-0x0000000000400000-0x0000000000418000-memory.dmp

                  Filesize

                  96KB

                • memory/1212-58-0x0000000000400000-0x0000000000418000-memory.dmp

                  Filesize

                  96KB

                • memory/1212-44-0x0000000000400000-0x0000000000418000-memory.dmp

                  Filesize

                  96KB

                • memory/1212-46-0x0000000000400000-0x0000000000418000-memory.dmp

                  Filesize

                  96KB

                • memory/1212-47-0x0000000000400000-0x0000000000418000-memory.dmp

                  Filesize

                  96KB

                • memory/1212-52-0x0000000000400000-0x0000000000418000-memory.dmp

                  Filesize

                  96KB

                • memory/1944-68-0x0000000074930000-0x000000007501E000-memory.dmp

                  Filesize

                  6.9MB

                • memory/1944-72-0x0000000000780000-0x00000000007C0000-memory.dmp

                  Filesize

                  256KB

                • memory/1944-69-0x0000000000780000-0x00000000007C0000-memory.dmp

                  Filesize

                  256KB

                • memory/1944-70-0x0000000074930000-0x000000007501E000-memory.dmp

                  Filesize

                  6.9MB

                • memory/1944-67-0x00000000008E0000-0x0000000000982000-memory.dmp

                  Filesize

                  648KB

                • memory/1944-92-0x0000000074930000-0x000000007501E000-memory.dmp

                  Filesize

                  6.9MB

                • memory/1980-3-0x0000000074930000-0x000000007501E000-memory.dmp

                  Filesize

                  6.9MB

                • memory/1980-2-0x0000000004A70000-0x0000000004AB0000-memory.dmp

                  Filesize

                  256KB

                • memory/1980-4-0x0000000004A70000-0x0000000004AB0000-memory.dmp

                  Filesize

                  256KB

                • memory/1980-5-0x0000000000B10000-0x0000000000BF0000-memory.dmp

                  Filesize

                  896KB

                • memory/1980-1-0x0000000074930000-0x000000007501E000-memory.dmp

                  Filesize

                  6.9MB

                • memory/1980-34-0x0000000074930000-0x000000007501E000-memory.dmp

                  Filesize

                  6.9MB

                • memory/1980-0-0x0000000001100000-0x00000000011CE000-memory.dmp

                  Filesize

                  824KB

                • memory/2712-96-0x0000000074930000-0x000000007501E000-memory.dmp

                  Filesize

                  6.9MB

                • memory/2752-57-0x0000000074930000-0x000000007501E000-memory.dmp

                  Filesize

                  6.9MB

                • memory/2752-33-0x0000000004350000-0x0000000004390000-memory.dmp

                  Filesize

                  256KB

                • memory/2752-40-0x0000000004350000-0x0000000004390000-memory.dmp

                  Filesize

                  256KB

                • memory/2752-39-0x0000000074930000-0x000000007501E000-memory.dmp

                  Filesize

                  6.9MB

                • memory/2752-42-0x0000000000410000-0x000000000043C000-memory.dmp

                  Filesize

                  176KB

                • memory/2752-31-0x0000000000350000-0x00000000003F2000-memory.dmp

                  Filesize

                  648KB

                • memory/2752-32-0x0000000074930000-0x000000007501E000-memory.dmp

                  Filesize

                  6.9MB

                • memory/2868-8-0x0000000000080000-0x00000000000A6000-memory.dmp

                  Filesize

                  152KB

                • memory/2868-10-0x0000000000080000-0x00000000000A6000-memory.dmp

                  Filesize

                  152KB

                • memory/2868-15-0x0000000000080000-0x00000000000A6000-memory.dmp

                  Filesize

                  152KB

                • memory/2868-71-0x0000000004C50000-0x0000000004C90000-memory.dmp

                  Filesize

                  256KB

                • memory/2868-35-0x0000000004C50000-0x0000000004C90000-memory.dmp

                  Filesize

                  256KB

                • memory/2868-73-0x0000000004C50000-0x0000000004C90000-memory.dmp

                  Filesize

                  256KB

                • memory/2868-24-0x0000000074930000-0x000000007501E000-memory.dmp

                  Filesize

                  6.9MB

                • memory/2868-6-0x0000000000080000-0x00000000000A6000-memory.dmp

                  Filesize

                  152KB

                • memory/2868-9-0x0000000000080000-0x00000000000A6000-memory.dmp

                  Filesize

                  152KB

                • memory/2868-11-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

                  Filesize

                  4KB

                • memory/2868-38-0x0000000074930000-0x000000007501E000-memory.dmp

                  Filesize

                  6.9MB

                • memory/2868-23-0x0000000000080000-0x00000000000A6000-memory.dmp

                  Filesize

                  152KB

                • memory/2868-20-0x0000000000080000-0x00000000000A6000-memory.dmp

                  Filesize

                  152KB

                • memory/2868-41-0x0000000004C50000-0x0000000004C90000-memory.dmp

                  Filesize

                  256KB

                • memory/2868-16-0x0000000000080000-0x00000000000A6000-memory.dmp

                  Filesize

                  152KB